Standard-Lead Precision Ball Scre Pipe Nut BIF BNFN BNF BNT.pdf · k. Dimensions of the Ball Screw...
Transcript of Standard-Lead Precision Ball Scre Pipe Nut BIF BNFN BNF BNT.pdf · k. Dimensions of the Ball Screw...
k-116
Return-Pipe Nut
Screw shaftPipe presser
Shim plate
Return pipe
Labyrinth seal
Ball screw nut
Ball screw nuta
BallKey
Structure and FeaturesWith the Return-Pipe Nut, balls under a load roll around the circumference of the screw shaft,
while receiving an axial load on the ball raceways formed between the screw shaft and the ball
screw nut, then pass through the return pipe incorporated in the ball screw nut and circulate
back to the loaded area, thus to achieve infinite motion. Being the most common type is the
series with the broadest range of variations, it can be used in a wide array of applications.
Fig. 1 Structure of the Return-Pipe Nut
Standard-Lead Precision Ball Screw
k. Dimensions of the Ball Screw
k-117
k117
Standard-LeadPrecisionBallScrew
Types and FeaturesOffset-Preload Type Model BIF
The right and left screws are provided with
a phase in the middle of the ball screw nut,
and an axial clearance is set at a below-
zero value (under a preload). This compact
model is capable of smooth motion.
The most common type with a preload pro-
vided via a spacer between the two com-
bined ball screw nuts to eliminate backlash.
It can be mounted using the bolt holes
drilled on the flange.
Double-nut Preload Type Model BNFN
The simplest type with a single ball screw
nut. It is designed to be mounted using the
bolt holes drilling on the flange.
Since mounting screw holes are machined
on the square ball screw nut, this model
can compactly be mounted on the machine
without a housing.
Non-preload Type Model BNF Non-preload Type with a Square Ball Screw Nut Model BNT
k. Dimensions of the Ball Screw
k-119
k119
Standard-LeadPrecisionBallScrew
k-118 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Model BIFModel BIFOffset-preload Type
Model number coding BIF2005-5 RR G0 +1000L C3
zModel numberxSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
BIF 1605-5BIF 1606-5BIF 1810-3BIF 2004-5BIF 2005-5BIF 2006-3BIF 2006-5
○ BIF 2505-3○ BIF 2505-5○ BIF 2508-5○ BIF 2510A-5BIF 2805-5BIF 2805-10BIF 2806-5BIF 2806-10BIF 2810-3
16
18
20
25
28
56
1045
6
5
810
5
6
10
16.7516.818.820.520.7520.7520.7525.7525.7526.2526.328.7528.7528.7528.7529.75
13.213.215.517.817.217.217.222.222.220.521.425.225.225.225.222.4
1✕2.51✕2.51✕1.51✕2.51✕2.51✕1.51✕2.51✕1.51✕2.51✕2.51✕2.51✕2.52✕2.51✕2.52✕2.52✕1.5
7.47.55.14.88.35.48.369.2
15.815.89.7
17.49.6
17.515.7
13.9149.6
10.917.410.517.513.12232.83324.649.424.649.429.4
330330230360390250390280470500500520
1000520
1000350
40404240444848505058585555555565
Unit: mm
606065636771717373858585858585
106
56627553565662525582
100598968
10488
10101211111111111115181212121218
46526342454551414467824777569270
50505351555959616171716969696985
4.5✕8✕4.54.5✕8✕4.5
5.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.511✕17.5✕11
M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6
5.05✕10-4
5.05✕10-4
8.09✕10-4
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kNOuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
PCD
(Greasing hole)
A
60°
φd2
B1
φD1φdp
φd1
φdc
hH
φDg6φd
L1
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .Those models marked with ○ can be attached with QZ Lubricator or the wiper ring.For dimensions of the ball screw nut with either accessory being attached, see page k-122.
K: Rigidity value in the dimensional table.
where
( ) KN=KFa0
0.1Ca
1 3
Note The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing a preload 10% of the basic dynamic load rat-ing (Ca) and applying an axial load three times greater thanthe preload. These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the applied preload (Fa0) is not 0.1 Ca, the rigidity value (KN)is obtained from the following equation.
k. Dimensions of the Ball Screw
k-121
k121
Standard-LeadPrecisionBallScrew
k-120 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Model number coding BIF3206-10 RR G0 +1200L C3
zModel numberxSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
Model BIFModel BIFOffset-preload Type
PCD
(Greasing hole)
A
60°
φd2
B1
φD1φdp
φd1
φdc
hH
φDg6φd
L1
BIF 3204-10○ BIF 3205-5○ BIF 3205-10○ BIF 3206-5○ BIF 3206-7○ BIF 3206-10○ BIF 3208A-5○ BIF 3208A-7○ BIF 3210A-5○ BIF 3610-5○ BIF 3610-10○ BIF 4010-5○ BIF 4010-10○ BIF 4012-5○ BIF 4012-10○ BIF 5010-5○ BIF 5010-10
32
36
40
50
4
5
6
8
10
10
10
12
10
32.532.7532.7533333333.2533.2533.7537.7537.7541.7541.75424251.7551.75
30.129.229.228.428.428.427.527.526.430.530.534.434.434.134.144.444.4
2✕2.51✕2.52✕2.51✕2.51✕3.52✕2.51✕2.51✕3.51✕2.51✕2.52✕2.51✕2.52✕2.51✕2.52✕2.51✕2.52✕2.5
10.510.218.513.918.525.217.823.826.127.650.12952.733.961.63258.2
35.428.156.435.249.270.442.259.156.263.3
126.470.4
141.179.2
158.888.2
176.4
1010570
1110600810
1150610840640700
1350750
1470770
1490900
1750
5458586262626666747575828284849393
Unit: mm
818585898989
100100108120120124124126126135135
7656866375998298
100111171103163119191103163
1112121212121515151818181818181818
65447451638767838593
15385
14510117385
145
6771717575758282909898
102102104104113113
6.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.59✕14✕8.59✕14✕8.59✕14✕8.5
11✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕11
M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6
PT 1/8PT 1/8
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
1.29✕10-2
1.29✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
4.82✕10-2
4.82✕10-2
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .Those models marked with ○ can be attached with QZ Lubricator or the wiper ring.For dimensions of the ball screw nut with either accessory being attached, see page k-122.
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
where
( ) KN=KFa0
0.1Ca
1 3
Note The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing a preload 10% of the basic dynamic load rat-ing (Ca) and applying an axial load three times greater thanthe preload. These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the applied preload (Fa0) is not 0.1 Ca, the rigidity value (KN)is obtained from the following equation.
k-122
Model BIFModel BIFDimensions of the Ball Screw Nut Attached with
Wiper Ring (WW) and QZ Lubricator (QZ)
Model number coding BIF2505-3 QZ WW G0 +1000L C5
zModel number xWith QZ Lubricator (see page k-22)cSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)vAxial clearance symbol (see page k-15) bOverall screw shaft length (in mm)nAccuracy symbol (see page k-8)
z b nvcx
H
L1
φDφD1
H
QWL
φQWD
QWLL1AL
φDφD1
With WW (without QZ) With QZ + WW
Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Model No.
Dimensions including WW Dimensions including QZ and WW
Nut
length
Flange
width
Flange
diameter
Nut
diameterLength
Outer
diameter
Overalllength incl.QZ and WW
L1 H D1 Dg6 QWL QWD ALBIF 2505-3BIF 2505-5BIF 2508-5BIF 2510A-5BIF 3205-5BIF 3205-10BIF 3206-5BIF 3206-7BIF 3206-10BIF 3208A-5BIF 3208A-7BIF 3210A-5BIF 3610-5BIF 3610-10BIF 4010-5BIF 4010-10BIF 4012-5BIF 4012-10BIF 5010-10
525582
10056866375998298
100111171103163119191163
11
1518
12
12
15
15
18
18
18
18
73
8585
85
89
100
108
120
124
126
135
50
5858
58
62
66
74
75
82
84
93
32.5
3437
32
32
34
31
33
37
38
37.5
45
4545
57
57
57
73
64
66
66
79
117120150174120150127139163150166162177237177237195267238
Unit: mm
Note QZ Lubricator and wiper ring are not sold alone.
k. Dimensions of the Ball Screw
k-123
k123
Standard-LeadPrecisionBallScrew
■ QZ Lubricator for the Ball ScrewHandling●Dropping or hitting the product may damage it. Use much care when handling it.
●Unduly disassembling the product may cause foreign matter from entering the product or
degrade the accuracy. Do not disassemble the product unless it is inevitable.
●Do not clean the product with an organic solvent or white kerosene.
●Do not leave the product package open over a long period of time.
●Do not block the hole for air vent near the model number indication with grease or the like.
Service Temperature Range●Use this product within a temperature range of -10℃ to +50℃. When desiring to use the
product out of this temperature range, contact .
Use in a Special Environment●When desiring to use the product in a special environment, contact .
Corrosion Prevention●QZ Lubricator is designed to provide the essential minimum amount of a lubricant to the ball
raceway. It does not provide a corrosion-prevention effect to the whole Ball Screw.
■ Wiper Ring for the Ball ScrewHandling●Dropping or hitting the product may damage it. Use much care when handling it.
●Unduly disassembling the product may cause foreign matter from entering the product or
degrade the accuracy. Do not disassemble the product unless it is inevitable.
●When using this product in a harsh environment, we recommend using it in combination with
QZ Lubricator.
Service Temperature Range●Use this product within a temperature range of -20℃ to +80℃. When desiring to use the
product out of this temperature range, contact .
Use in a Special Environment●When desiring to use the product in a special environment, contact .
Chemical Resistance●Avoid using the product in an atmosphere containing an acid or alkali solvent.
Precautions on Use
k. Dimensions of the Ball Screw
k-125
k125
Standard-LeadPrecisionBallScrew
k-124 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Model BNFNModel BNFNDouble-nut Preload Type
Model number coding BNFN1810-2.5 RR G0 +900L C3
zModel numberxSeal symbol - RR: Labyrinth seal attached to both ends of the ball screw nut (see page k-25)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
PCD
(Greasing hole)A
60°
φd2
B1
B2
φD1φdp
φd1
φdc
hH
φDg6φd
L1
BNFN 1604-3 BNFN 1605-2.5 BNFN 1605-3 BNFN 1605-5 BNFN 1610-1.5 BNFN 1810-2.5 BNFN 1810-3 BNFN 2004-2.5 BNFN 2004-5 BNFN 2005-2.5BNFN 2005-3 BNFN 2005-3.5 BNFN 2005-5 BNFN 2006-2.5 BNFN 2006-3 BNFN 2006-3.5 BNFN 2006-5 BNFN 2008-2.5BNFN 2010A-1.5 BNFN 2012-1.5
16
18
20
4
5
10
10
4
5
6
81012
16.516.7516.7516.7516.818.818.820.520.520.7520.7520.7520.7520.7520.7520.7520.75212121
13.813.213.213.213.215.515.517.817.817.217.217.217.217.217.217.217.216.416.416.4
2✕1.51✕2.52✕1.52✕2.51✕1.51✕2.52✕1.51✕2.52✕2.51✕2.52✕1.51✕3.52✕2.51✕2.52✕1.51✕3.52✕2.51✕2.51✕1.51✕1.5
5.17.48.7
13.54.87.89.24.88.68.39.7
11.115.18.39.7
11.115.115.17.27.1
10.513.916.827.88.5
15.919.110.921.817.42124.53517.52124.5353513.212.5
350330390640210360430360700390470550760390470550760760250250
3640404040424240404444444448484848464648
Unit: mm
5960606063656563636767676771717171747471
857696
10672
1191356993769785
10686
11098
12210098
100
1110101011121211111111111111111111151518
7466869661
107123588265867495759987
111858382
—557585—94
110——53746283—————67—
4750505051535351515555555559595959595959
5.5✕9.5✕5.54.5✕8✕4.54.5✕8✕4.54.5✕8✕4.5
5.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.5
M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6
5.05✕10-4
5.05✕10-4
5.05✕10-4
5.05✕10-4
5.05✕10-4
8.09✕10-4
8.09✕10-4
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kNOuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 B2 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .
K: Rigidity value in the dimensional table.
where
( ) KN=KFa0
0.1Ca
1 3
Note The rigidity values in the table represent spring constants eachobtained from the load and the elastic displacement when providinga preload 10% of the basic dynamic load rating (Ca) and applyingan axial load three times greater than the preload. These values do not include the rigidity of the components relatedto mounting the ball screw nut. Therefore, it is normally appropriateto regard roughly 80% of the value in the table as the actual value.If the applied preload (Fa0) is not 0.1 Ca, the rigidity value (KN) isobtained from the following equation.
k. Dimensions of the Ball Screw
k-127
k127
Standard-LeadPrecisionBallScrew
k-126
Model BNFNModel BNFNDouble-nut Preload Type
PCD
(Greasing hole)A
60°
φd2
B1
B2
φD1φdp
φd1
φdc
hH
φDg6φd
L1
○ BNFN 2504-2.5○ BNFN 2504-5○ BNFN 2505-2.5○ BNFN 2505-3○ BNFN 2505-3.5○ BNFN 2505-5○ BNFN 2506-2.5○ BNFN 2506-3○ BNFN 2506-3.5○ BNFN 2506-5○ BNFN 2508-2.5○ BNFN 2508-3○ BNFN 2508-3.5○ BNFN 2508-5○ BNFN 2510A-2.5○ BNFN 2512-2.5○ BNFN 2516-1.5BNFN 2805-2.5BNFN 2805-3BNFN 2805-3.5
25
28
4
5
6
8
101216
5
25.525.525.7525.7525.7525.752626262626.2526.2526.2526.2526.3262628.7528.7528.75
22.822.822.222.222.222.221.421.421.421.420.520.520.520.521.421.921.425.225.225.2
1✕2.52✕2.51✕2.52✕1.51✕3.52✕2.51✕2.52✕1.51✕3.52✕2.51✕2.52✕1.51✕3.52✕2.51✕2.51✕2.51✕1.51✕2.52✕1.51✕3.5
5.29.59.2
10.812.316.712.514.615.122.515.818.521.228.715.812.37.99.7
11.312.9
13.727.32226.430.74427.332.835.954.832.839.44665.83327.616.724.629.534.4
420820470560650910490580670940500600690970500490300520620720
4646505050505353535358585858585353555555
Unit: mm
6969737373737676767685858585857676858585
689275
10285
10586
11098
122106135122154120108108749484
1111111111111111111115151515181111121212
578164917494759987
11191
1201071391029797628272
——52796282————————83——496959
5757616161616464646471717171716464696969
5.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.55.5✕9.5✕5.55.5✕9.5✕5.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.5
M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Model number coding BNFN2505-5 RR G0 +1000L C5
zModel numberxSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .Those models marked with ○ can be attached with QZ Lubricator or the wiper ring.For dimensions of the ball screw nut with either accessory being attached, see pages k-142 and k-143.
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 B2 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
where
( ) KN=KFa0
0.1Ca
1 3
Note The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing a preload 10% of the basic dynamic load rat-ing (Ca) and applying an axial load three times greater thanthe preload. These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the applied preload (Fa0) is not 0.1 Ca, the rigidity value (KN)is obtained from the following equation.
k. Dimensions of the Ball Screw
k-129
k129
Standard-LeadPrecisionBallScrew
k-128 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
PCD
(Greasing hole)A
60°
φd2
B1
B2
φD1φdp
φd1
φdc
hH
φDg6φd
L1
Model number coding BNFN2805-5 RR G0 +1200L C5
zModel numberxSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
Model BNFNModel BNFNDouble-nut Preload Type
BNFN 2805-5BNFN 2805-7.5BNFN 2806-2.5BNFN 2806-3.5BNFN 2806-5BNFN 2806-7.5BNFN 2808-2.5BNFN 2808-3BNFN 2808-5BNFN 2810-2.5
○ BNFN 3205-2.5○ BNFN 3205-3○ BNFN 3205-4.5○ BNFN 3205-5○ BNFN 3205-7.5○ BNFN 3206-2.5○ BNFN 3206-3○ BNFN 3206-5○ BNFN 3208A-2.5○ BNFN 3208A-3
28
32
5
6
8
10
5
6
8
28.7528.7528.7528.7528.7528.7529.2529.2529.2529.7532.7532.7532.7532.7532.7533333333.2533.25
25.225.225.225.225.225.223.623.623.622.429.229.229.229.229.228.428.428.427.527.5
2✕2.53✕2.51✕2.51✕3.52✕2.53✕2.51✕2.52✕1.52✕2.51✕2.51✕2.52✕1.53✕1.52✕2.53✕2.51✕2.52✕1.52✕2.51✕2.52✕1.5
17.524.89.6
12.917.524.816.819.630.42410.2121718.526.313.916.325.217.820.9
49.473.824.634.549.473.836.844.273.748.228.133.850.756.484.535.242.270.442.250.7
10001470520710
10001470550660
1060560570690
100011101640600710
1150610730
5555555555556060606558585858586262626666
Unit: mm
858585858585
1041041041068585858585898989
100100
1041348698
12215811614416414676
10312310613687
111123106135
1212121212121818181812121212121212121515
921227486
11014698
1261461286491
11194
1247599
11191
120
79109617397
133————51789881
111628698——
6969696969698282828571717171717575758282
6.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.511✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕116.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.59✕14✕8.59✕14✕8.5
M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Note The model number in a light face type indicate semi-standard types.If desiring them, contact .Those models marked with ○ can be attached with QZ Lubricator or the wiper ring.For dimensions of the ball screw nut with either accessory being attached, see pages k-142 and k-143.
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 B2 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
where
( ) KN=KFa0
0.1Ca
1 3
Note The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing a preload 10% of the basic dynamic load rat-ing (Ca) and applying an axial load three times greater thanthe preload. These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the applied preload (Fa0) is not 0.1 Ca, the rigidity value (KN)is obtained from the following equation.
k. Dimensions of the Ball Screw
k-131
k131
Standard-LeadPrecisionBallScrew
k-130 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
PCD
(Greasing hole)A
60°
φd2
B1
B2
φD1φdp
φd1
φdc
hH
φDg6φd
L1
Model BNFNModel BNFNDouble-nut Preload Type
BNFN3610-5 RR G0 +1400L C5
zModel numberxSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
○ BNFN 3208A-4.5○ BNFN 3208A-5○ BNFN 3210A-2.5○ BNFN 3210A-3○ BNFN 3210A-3.5○ BNFN 3210A-5○ BNFN 3212-3.5○ BNFN 3606-2.5○ BNFN 3606-3○ BNFN 3606-5○ BNFN 3606-7.5○ BNFN 3608-2.5○ BNFN 3608-5○ BNFN 3608-7.5○ BNFN 3610-2.5○ BNFN 3610-5○ BNFN 3610-7.5○ BNFN 3612-2.5○ BNFN 3612-5○ BNFN 3616-2.5
32
36
8
10
12
6
8
10
12
16
33.2533.2533.7533.7533.7533.753436.7536.7536.7536.7537.2537.2537.2537.7537.7537.75383838
27.527.526.426.426.426.426.133.233.233.233.231.631.631.630.530.530.530.130.130.1
3✕1.52✕2.51✕2.52✕1.51✕3.52✕2.51✕3.51✕2.52✕1.52✕2.53✕2.51✕2.52✕2.53✕2.51✕2.52✕2.53✕2.51✕2.52✕2.51✕2.5
29.532.326.130.534.847.240.410.712.519.427.518.834.148.327.650.171.132.158.432.1
7684.456.267.478.6
112.788.531.83863.495.247.595.1
142.163.3
126.4190.171.4
142.171.4
10701180640750870
1230890630740
12201790670
12901910700
13501990720
1370720
6666747474747665656565707070757575787878
100100108108108108121100100100100114114114120120120123123123
16715413016715019017089
110125161116164212141201261147219172
1515151515151815151515181818181818181818
1521391151521351751527495
11014698
146194123183243129201154
— — 99
136119159— 587994
130— — —
104164224—— —
8282909090909882828282929292989898
100100100
Unit: mm
9✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.5
11✕17.5✕119✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.5
11✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕11
M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .Those models marked with ○ can be attached with QZ Lubricator or the wiper ring.For dimensions of the ball screw nut with either accessory being attached, see pages k-142 and k-143.
Model number coding
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 B2 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
where
( ) KN=KFa0
0.1Ca
1 3
Note The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing a preload 10% of the basic dynamic load rat-ing (Ca) and applying an axial load three times greater thanthe preload.These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the applied preload (Fa0) is not 0.1 Ca, the rigidity value (KN)is obtained from the following equation.
k. Dimensions of the Ball Screw
k-133
k133
Standard-LeadPrecisionBallScrew
k-132 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
BNFN4006-5 RR G0 +2000L C3
zModel numberxSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
PCD
(Greasing hole)A
60°
φd2
B1
B2
φD1φdp
φd1
φdc
hH
φDg6φd
L1
Model BNFNModel BNFNDouble-nut Preload Type
○ BNFN 3616-5○ BNFN 3620-1.5○ BNFN 4005-3○ BNFN 4005-4.5○ BNFN 4005-5○ BNFN 4005-6○ BNFN 4006-2.5○ BNFN 4006-5○ BNFN 4006-7.5○ BNFN 4008-2.5○ BNFN 4008-3○ BNFN 4008-5○ BNFN 4010-2.5○ BNFN 4010-3○ BNFN 4010-3.5○ BNFN 4010-5○ BNFN 4012-2.5○ BNFN 4012-3.5○ BNFN 4012-5○ BNFN 4016-5
36
40
16
20
5
6
8
10
12
16
3837.7540.7540.7540.7540.7541414141.2541.2541.2541.7541.7541.7541.7542424242
30.130.537.237.237.237.236.436.436.435.535.535.534.434.434.434.434.134.134.134.1
2✕2.51✕1.52✕1.53✕1.52✕2.54✕1.51✕2.52✕2.53✕2.51✕2.52✕1.52✕2.51✕2.52✕1.51✕3.52✕2.51✕2.51✕3.52✕2.52✕2.5
58.317.61318.520.323.715.327.739.219.622.935.72933.838.852.733.945.461.661.4
143.138.342.363.570.684.744.188.1
132.352.863.4
105.870.484.599
141.179.2
110.7158.8158.8
1380430810
120013201580710
13602010730860
1410750900
10501470770
107014901500
7870676767677070707474748282828284848484
Unit: mm
123103101101101101104104104108108108124124124124126126126126
26813510612610915690
126162106135154133170153193155179227280
1815151515151515151515151818181818181822
25012091
11194
14175
11114791
120139115152135175137161209258
— — — — — — — — — — — — 96
133116156118142190—
1008583838383868686909090
102102102102104104104104
11✕17.5✕119✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.5
11✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕11
M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6
1.29✕10-2
1.29✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .Those models marked with ○ can be attached with QZ Lubricator or the wiper ring.For dimensions of the ball screw nut with either accessory being attached, see pages k-142 and k-143.
Model number coding
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 B2 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
where
( ) KN=KFa0
0.1Ca
1 3
Note The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing a preload 10% of the basic dynamic load rat-ing (Ca) and applying an axial load three times greater thanthe preload. These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the applied preload (Fa0) is not 0.1 Ca, the rigidity value (KN)is obtained from the following equation.
k. Dimensions of the Ball Screw
k-135
k135
Standard-LeadPrecisionBallScrew
k-134
PCD
(Greasing hole)A
60°
φd2
B1
B2
φD1φdp
φd1
φdc
hH
φDg6φd
L1
Model BNFNModel BNFNDouble-nut Preload Type
BNFN5005-4.5 RR G0 +2500L C3
zModel numberxSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
BNFN 4506A-2.5BNFN 4506A-5BNFN 4506A-7.5BNFN 4508-2.5BNFN 4508-5BNFN 4508-7.5BNFN 4510-2.5BNFN 4510-3BNFN 4510-5BNFN 4510-7.5BNFN 4512-5BNFN 4520-1.5
○ BNFN 5005-3○ BNFN 5005-4.5○ BNFN 5008-2.5○ BNFN 5008-5○ BNFN 5008-7.5○ BNFN 5010-2.5○ BNFN 5010-3
45
50
6
8
10
12 20
5
8
10
46464646.2546.2546.2546.7546.7546.7546.754747.750.7550.7551.2551.2551.2551.7551.75
41.441.441.440.640.640.639.539.539.539.539.237.947.247.245.545.545.544.444.4
1✕2.52✕2.53✕2.51✕2.52✕2.53✕2.51✕2.52✕1.52✕2.53✕2.52✕2.51✕1.52✕1.53✕1.51✕2.52✕2.53✕2.51✕2.52✕1.5
162941.220.737.453.130.735.955.678.865.244.214.220.221.639.155.43237.5
49.699
15059.5
118.6178.479.395.2
158.8238.1178.4995379.566.2
132.3198.988.2
105.8
77015002210790
15402270830990
161023701640690970
1420860
16802470900
1080
Unit: mm
80808085858588888888909880808787879393
114114114127127127132132132132130142114114129129129135135
89125161116164212141164201261227175108128109157205133170
15151518181818181818182015151818181818
7411014698
14619412314618324320915593
11391
139187115152
— — — — — —
104127164224— — — — — — — 96
133
969696
1051051051101101101101101209696
107107107113113
9✕14✕8.59✕14✕8.59✕14✕8.5
11✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕119✕14✕8.59✕14✕8.5
11✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕11
PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .Those models marked with ○ can be attached with QZ Lubricator or the wiper ring.For dimensions of the ball screw nut with either accessory being attached, see pages k-142 and k-143.
Model number coding
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 B2 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
where
( ) KN=KFa0
0.1Ca
1 3
Note The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing a preload 10% of the basic dynamic load rat-ing (Ca) and applying an axial load three times greater thanthe preload. These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the applied preload (Fa0) is not 0.1 Ca, the rigidity value (KN)is obtained from the following equation.
k. Dimensions of the Ball Screw
k-137
k137
Standard-LeadPrecisionBallScrew
k-136 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
BNFN5510-2.5 RR G0 +2500L C3
zModel numberxSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
PCD
(Greasing hole)A
60°
φd2
B1
B2
φD1φdp
φd1
φdc
hH
φDg6φd
L1
Model BNFNModel BNFNDouble-nut Preload Type
○ BNFN 5010-3.5○ BNFN 5010-5○ BNFN 5010-7.5○ BNFN 5012-2.5○ BNFN 5012-3.5○ BNFN 5012-5○ BNFN 5016-2.5○ BNFN 5016-5○ BNFN 5020-2.5BNFN 5510-2.5BNFN 5510-5BNFN 5510-7.5BNFN 5512-2.5BNFN 5512-3BNFN 5512-3.5BNFN 5512-5BNFN 5512-7.5BNFN 5516-2.5BNFN 5516-5BNFN 5520-2.5
50
55
10
12
16
20
10
12
16
20
51.7551.7551.7552.2552.2552.2552.752.752.756.7556.7556.75575757575757.757.757.7
44.444.444.443.343.343.342.942.942.949.549.549.549.249.249.249.249.247.947.947.9
1✕3.52✕2.53✕2.51✕2.51✕3.52✕2.51✕2.52✕2.51✕2.51✕2.52✕2.53✕2.51✕2.52✕1.51✕3.52✕2.53✕2.51✕2.52✕2.51✕2.5
42.858.282.543.45878.872.6
132.372.533.460.785.939.34652.471.3
100.976.1
138.276
123.5176.4264.6109.8153.9220.5183.3366.5183.397
194291.1108.8131.3152.9218.5327.3201.9402.8201.9
124017502580930
12801810123023601230970
18902770990
1180136019202830131025501320
Unit: mm
939393
100100100105105105102102102105105105105105110110112
135135135146146146152152152144144144147147147147147158158158
153193253159183231196292241141201261165191189237309196292227
1818182222222525281818181818181818252528
135175235137161209171267213123183243147173171219291171267199
116156216114138186——————————————
113113113122122122128128128122122122125125125125125133133134
11✕17.5✕1111✕17.5✕1111✕17.5✕1114✕20✕1314✕20✕1314✕20✕1314✕20✕1314✕20✕1314✕20✕13
11✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1114✕20✕1314✕20✕1314✕20✕13
PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .Those models marked with ○ can be attached with QZ Lubricator or the wiper ring.For dimensions of the ball screw nut with either accessory being attached, see pages k-142 and k-143.
Model number coding
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 B2 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
where
( ) KN=KFa0
0.1Ca
1 3
Note The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing a preload 10% of the basic dynamic load rat-ing (Ca) and applying an axial load three times greater thanthe preload. These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the applied preload (Fa0) is not 0.1 Ca, the rigidity value (KN)is obtained from the following equation.
k. Dimensions of the Ball Screw
k-139
k139
Standard-LeadPrecisionBallScrew
k-138 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Model number coding BNFN6320-5 RR G0 +3500L C3
zModel numberxSeal symbol - RR: Labyrinth seal attached to both ends of the ball screw nut (see page k-25)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
Model BNFNModel BNFNDouble-nut Preload Type
BNFN 5520-5BNFN 6310-2.5BNFN 6310-5BNFN 6310-7.5BNFN 6312A-2.5BNFN 6312A-5BNFN 6316-2.5BNFN 6316-5BNFN 6320-2.5BNFN 6320-5BNFN 7010-2.5BNFN 7010-5BNFN 7010-7.5BNFN 7012-2.5BNFN 7012-5BNFN 7012-7.5BNFN 7020-5BNFN 8010-2.5BNFN 8010-5BNFN 8010-7.5
55
63
70
80
20
10
12
16
20
10
12
20
10
57.764.7564.7564.7565.2565.2565.765.765.765.771.7571.7571.7572727272.781.7581.7581.75
47.957.757.757.756.356.355.955.955.955.964.564.564.564.264.264.262.975.275.275.2
2✕2.5 1✕2.5 2✕2.5 3✕2.5 1✕2.5 2✕2.5 1✕2.5 2✕2.5 1✕2.5 2✕2.5 1✕2.5 2✕2.5 3✕2.5 1✕2.5 2✕2.5 3✕2.5 2✕2.5 1✕2.5 2✕2.5 3✕2.5
138.235.464.290.948.187.481.1
14781
14736.866.994.943.578.9
111.7153.938.970.6
100
403.8111.7222.5 334.2 139.2 278.3 231.3 462.6 231.3 463.5 123.5 247371.4 139.2 278.3 417.5 514.5 141.1 283.2 424.3
25501090210030901120216014702840147026401180228033501200232034203090130025303720
Unit: mm
112108108108115115122122122122125125125128128128130130130130
158 154 154 154 161 161 184 184 180 180 167 167 167 170 170 170 186 176 176 176
347 137 197 257 159 231 208 304 227 347 141 201 261 165 237 309 325 137 197 257
2822222222222424282818181818181828222222
319 115 175 235 137 209 184 280 199 319 123 183 243 147 219 291 297 115 175 235
————————————————————
134130130130137137152152150150145145145148148148158152152152
14✕20✕1314✕20✕1314✕20✕1314✕20✕1314✕20✕1314✕20✕13
18✕26✕17.518✕26✕17.518✕26✕17.518✕26✕17.511✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1118✕26✕17.514✕20✕1314✕20✕1314✕20✕13
PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8
7.05✕10-2
1.21✕10-1
1.21✕10-1
1.21✕10-1
1.21✕10-1
1.21✕10-1
1.21✕10-1
1.21✕10-1
1.21✕10-1
1.21✕10-1
1.85✕10-1
1.85✕10-1
1.85✕10-1
1.85✕10-1
1.85✕10-1
1.85✕10-1
1.85✕10-1
3.16✕10-1
3.16✕10-1
3.16✕10-1
PCD
(Greasing hole)A
60°
φd2
B1
B2
φD1φdp
φd1
φdc
hH
φDg6φd
L1
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 B2 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
where
( ) KN=KFa0
0.1Ca
1 3
Note The rigidity values in the table represent spring constants eachobtained from the load and the elastic displacement when providinga preload 10% of the basic dynamic load rating (Ca) and applyingan axial load three times greater than the preload. These values do not include the rigidity of the components relatedto mounting the ball screw nut. Therefore, it is normally appropriateto regard roughly 80% of the value in the table as the actual value.If the applied preload (Fa0) is not 0.1 Ca, the rigidity value (KN) isobtained from the following equation.
k. Dimensions of the Ball Screw
k-141
k141
Standard-LeadPrecisionBallScrew
k-140 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Model number coding BNFN8012-5 RR G0 +4800L C5
zModel numberxSeal symbol - RR: Labyrinth seal attached to both ends of the ball screw nut (see page k-25)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
Model BNFNModel BNFNDouble-nut Preload Type
PCD
(Greasing hole)A
60°
φd2
B1
B2
φD1φdp
φd1
φdc
hH
φDg6φd
L1
BNFN 8012-5BNFN 8020A-2.5BNFN 8020A-5BNFN 10020A-2.5BNFN 10020A-5BNFN 10020A-7.5
80
100
12
20
20
82.382.782.7
102.7102.7102.7
74.172.972.992.992.992.9
2✕2.51✕2.52✕2.51✕2.52✕2.53✕2.5
96.590.1
163.799
179.3253.8
353.8294589368.5737
1105.4
262017703430211040806010
Unit: mm
135143143170170170
181204204243243243
231227347231351471
222828323232
209199319199319439
——————
157172172205205205
14✕20✕1318✕26✕17.518✕26✕17.522✕32✕21.522✕32✕21.522✕32✕21.5
PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8
3.16✕10-1
3.16✕10-1
3.16✕10-1
7.71✕10-1
7.71✕10-1
7.71✕10-1
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
K: Rigidity value in the dimensional table.
where
( ) KN=KFa0
0.1Ca
1 3
Note The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing a preload 10% of the basic dynamic load rat-ing (Ca) and applying an axial load three times greater thanthe preload. These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the applied preload (Fa0) is not 0.1 Ca, the rigidity value (KN)is obtained from the following equation.
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 B2 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
k-142
Model BNFNModel BNFNDimensions of the Ball Screw Nut Attached with
Wiper Ring (WW) and QZ Lubricator (QZ)
Model number coding BNFN2505-5 QZ WW G0 +1000L C5z b nvcx
Model No.
Dimensions including WW Dimensions including QZ and WW
Nut
length
Flange
width
Flange
diameter
Nut
diameterLength
Outer
diameter
Overalllength incl.QZ and WW
L1 H D1 Dg6 QWL QWD ALBNFN 2504-2.5BNFN 2504-5BNFN 2505-2.5BNFN 2505-3BNFN 2505-3.5BNFN 2505-5BNFN 2506-2.5BNFN 2506-3BNFN 2506-3.5BNFN 2506-5BNFN 2508-2.5BNFN 2508-3BNFN 2508-3.5BNFN 2508-5BNFN 2510A-2.5BNFN 2512-2.5BNFN 2516-1.5BNFN 3205-2.5BNFN 3205-3BNFN 3205-4.5BNFN 3205-5BNFN 3205-7.5BNFN 3206-2.5BNFN 3206-3BNFN 3206-5BNFN 3208A-2.5BNFN 3208A-3BNFN 3208A-4.5BNFN 3208A-5
689275
10285
10586
11098
12210613512215412010810876
10312310613687
111123106135167154
11
11
11
15
181111
12
12
15
69
73
76
85
857676
85
89
100
46
50
53
58
585353
58
62
66
32.5
32.5
33
34
373335
32
32
34
45
45
45
45
454545
57
57
57
133157140167150170152176164188174203190222194174178140167187170200151175187174203235222
H
L1
φDφD1
H
QWL QWLL1AL
φQWD φDφD1
With WW (without QZ) With QZ + WW
Unit: mm
zModel number xWith QZ Lubricator (see page k-22)cSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)vAxial clearance symbol (see page k-15) bOverall screw shaft length (in mm)nAccuracy symbol (see page k-8)
Note QZ Lubricator and wiper ring are not sold alone.
k. Dimensions of the Ball Screw
k-143
k143
Standard-LeadPrecisionBallScrew
Model No.
Dimensions including WW Dimensions including QZ and WW
Nut
length
Flange
width
Flange
diameter
Nut
diameterLength
Outer
diameter
Overalllength incl.QZ and WW
L1 H D1 Dg6 QWL QWD ALBNFN 3210A-2.5BNFN 3210A-3BNFN 3210A-3.5BNFN 3210A-5BNFN 3212-3.5BNFN 3606-2.5BNFN 3606-3BNFN 3606-5BNFN 3606-7.5BNFN 3608-2.5BNFN 3608-5BNFN 3608-7.5BNFN 3610-2.5BNFN 3610-5BNFN 3610-7.5BNFN 3612-2.5BNFN 3612-5BNFN 3616-2.5BNFN 3616-5BNFN 3620-1.5BNFN 4005-3BNFN 4005-4.5BNFN 4005-5BNFN 4005-6BNFN 4006-2.5BNFN 4006-5BNFN 4006-7.5BNFN 4008-2.5BNFN 4008-3BNFN 4008-5BNFN 4010-2.5BNFN 4010-3BNFN 4010-3.5BNFN 4010-5BNFN 4012-2.5BNFN 4012-3.5BNFN 4012-5BNFN 4016-5BNFN 5005-3BNFN 5005-4.5BNFN 5008-2.5BNFN 5008-5BNFN 5008-7.5BNFN 5010-2.5BNFN 5010-3BNFN 5010-3.5BNFN 5010-5BNFN 5010-7.5BNFN 5012-2.5BNFN 5012-3.5BNFN 5012-5BNFN 5016-2.5BNFN 5016-5BNFN 5020-2.5
13016715019017089
11012516111616421214120126114721917226813510612610915690
126162106135154133170153193155179227280108128109157205133170153193253159183231196292241
15
18
15
18
18
18
18
15
15
15
15
18
18
22
15
18
18
22
25
28
108
121
100
114
120
123
123
103
101
104
108
124
126
126
114
129
135
146
152
152
74
76
65
70
75
78
78
70
67
70
74
82
84
84
80
87
93
100
105
105
31
33
30
31
33
35
32
32
33
35
35
37
38
42
35.5
36.5
37.5
38.5
38.5
40.5
73
73
64
64
64
64
64
64
66
66
66
66
66
66
79
79
79
79
79
79
192229212252236149170185221178226274207267327217289236332199172192175222160196232176205224207244227267231255303364179199182230278208245228268328236260308273369322
Unit: mm
Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
k-144
■ QZ Lubricator for the Ball ScrewHandling●Dropping or hitting the product may damage it. Use much care when handling it.
●Unduly disassembling the product may cause foreign matter from entering the product or
degrade the accuracy. Do not disassemble the product unless it is inevitable.
●Do not clean the product with an organic solvent or white kerosene.
●Do not leave the product package open over a long period of time.
●Do not block the hole for air vent near the model number indication with grease or the like.
Service Temperature Range●Use this product within a temperature range of -10℃ to +50℃. When desiring to use the
product out of this temperature range, contact .
Use in a Special Environment●When desiring to use the product in a special environment, contact .
Corrosion Prevention●QZ Lubricator is designed to provide the essential minimum amount of a lubricant to the ball
raceway. It does not provide a corrosion-prevention effect to the whole Ball Screw.
■ Wiper Ring for the Ball ScrewHandling●Dropping or hitting the product may damage it. Use much care when handling it.
●Unduly disassembling the product may cause foreign matter from entering the product or
degrade the accuracy. Do not disassemble the product unless it is inevitable.
●When using this product in a harsh environment, we recommend using it in combination with
QZ Lubricator.
Service Temperature Range●Use this product within a temperature range of -20℃ to +80℃. When desiring to use the
product out of this temperature range, contact .
Use in a Special Environment●When desiring to use the product in a special environment, contact .
Chemical Resistance●Avoid using the product in an atmosphere containing an acid or alkali solvent.
Precautions on Use
k. Dimensions of the Ball Screw
k-147
k147
Standard-LeadPrecisionBallScrew
k-146 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Model BNFModel BNFSingle-nut Non-preload Type
Model number coding BNF1810-2.5 RR G1 +900L C5
zModel numberxSeal symbol - RR: Labyrinth seal attached to both ends of the ball screw nut (see page k-25)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
BNF 1604-3BNF 1605-2.5BNF 1605-3BNF 1605-5BNF 1606-2.5BNF 1606-5BNF 1610-1.5BNF 1810-2.5BNF 1810-3BNF 2004-2.5BNF 2004-5BNF 2005-2.5BNF 2005-3BNF 2005-3.5BNF 2005-5BNF 2006-2.5BNF 2006-3BNF 2006-3.5BNF 2006-5BNF 2008-2.5
16
18
20
4
5
6
10
10
4
5
6
8
16.516.7516.7516.7516.816.816.818.818.820.520.520.7520.7520.7520.7520.7520.7520.7520.7521
13.813.213.213.213.213.213.515.515.517.817.817.217.217.217.217.217.217.217.216.4
2✕1.51✕2.52✕1.52✕2.51✕2.52✕2.51✕1.51✕2.52✕1.51✕2.52✕2.51✕2.52✕1.51✕3.52✕2.51✕2.52✕1.51✕3.52✕2.51✕2.5
5.17.48.7
13.57.5
13.54.87.89.24.88.68.39.7
11.115.18.39.7
11.115.111.1
10.513.916.827.814288.5
15.919.110.921.817.42124.53517.52124.53521.9
180170200320170320100190220180350200240270380200240270380210
Unit: mm
3640404040404042424040444444444848484846
5960606060606365656363676767677171717174
4541515644624269753749415245564456506260
1110101010101112121111111111111111111115
3431414634523157632638304134453345395145
4750505050505153535151555555555959595959
5.5✕9.5✕5.54.5✕8✕4.54.5✕8✕4.54.5✕8✕4.54.5✕8✕4.54.5✕8✕4.5
5.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.5
M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6
5.05✕10-4
5.05✕10-4
5.05✕10-4
5.05✕10-4
5.05✕10-4
5.05✕10-4
5.05✕10-4
8.09✕10-4
8.09✕10-4
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
1.23✕10-3
PCD
(Greasing hole)
A
60°
φd2
B1
φD1 φdp
φd1
φdc
hH
φDg6φd
L1
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
( ) KN=KFa
0.3Ca
1 3
whereNote The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing an axial load 30% of the basic dynamic loadrating (Ca). These values do not include the rigidity of thecomponents related to mounting the bal l screw nut.Therefore, it is normally appropriate to regard roughly 80% ofthe value in the table as the actual value.If the axial load (Fa) is not 0.3 Ca, the rigidity value (KN) isobtained from the following equation.
k. Dimensions of the Ball Screw
k-149
k149
Standard-LeadPrecisionBallScrew
k-148 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
BNF2505-5 RR G1 +1200L C5
zModel numberxSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
Model BNFModel BNFSingle-nut Non-Preload Type
PCD
(Greasing hole)
A
60°
φd2
B1
φD1 φdp
φd1
φdc
hH
φDg6φd
L1
BNF 2010A-1.5BNF 2012-1.5
○ BNF 2504-2.5○ BNF 2504-5○ BNF 2505-2.5○ BNF 2505-3○ BNF 2505-3.5○ BNF 2505-5○ BNF 2506-2.5○ BNF 2506-3○ BNF 2506-3.5○ BNF 2506-5○ BNF 2508-2.5○ BNF 2508-3○ BNF 2508-3.5○ BNF 2508-5○ BNF 2510A-2.5○ BNF 2512-2.5○ BNF 2516-1.5
20
25
1012
4
5
6
8
101216
212125.525.525.7525.7525.7525.752626262626.2526.2526.2526.2526.32626
16.416.422.822.822.222.222.222.221.421.421.421.420.520.520.520.521.421.921.4
1✕1.51✕1.51✕2.52✕2.51✕2.52✕1.51✕3.52✕2.51✕2.52✕1.51✕3.52✕2.51✕2.52✕1.51✕3.52✕2.51✕2.51✕2.51✕1.5
7.27.15.29.59.2
10.812.316.712.514.615.122.515.818.521.228.715.812.37.9
13.213.213.727.32226.430.74427.332.835.954.832.839.44665.83327.616.7
130130210410240280320460250290330470250290340480250250150
46484646505050505353535358585858585353
74716969737373737676767685858585857676
58643648405245554456506258716682706060
15181111111111111111111115151515181111
43462537294134443345395143565167524949
59595757616161616464646471717171716464
Unit: mm
5.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.55.5✕9.5✕5.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.55.5✕9.5✕5.55.5✕9.5✕5.5
M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6
1.23✕10-3
1.23✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
3.01✕10-3
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Model number coding
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
( ) KN=KFa
0.3Ca
1 3
whereNote The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing an axial load 30% of the basic dynamic loadrating (Ca). These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the axial load (Fa) is not 0.3 Ca, the rigidity value (KN) isobtained from the following equation.
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .Those models marked with ○ can be attached with QZ Lubricator or the wiper ring.For dimensions of the ball screw nut with either accessory being attached, see pages k-164 and k-165.
k. Dimensions of the Ball Screw
k-151
k151
Standard-LeadPrecisionBallScrew
k-150
Model BNFModel BNFSingle-nut Non-Preload Type
PCD
(Greasing hole)
A
60°
φd2
B1
φD1 φdp
φd1
φdc
hH
φDg6φd
L1
Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
BNF2806-5 RR G1 +1200L C5
zModel numberxSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
BNF 2805-2.5BNF 2805-3BNF 2805-3.5BNF 2805-5BNF 2805-7.5BNF 2806-2.5BNF 2806-3.5BNF 2806-5BNF 2806-7.5BNF 2808-2.5BNF 2808-3BNF 2808-5BNF 2810-2.5BNF 3204-7.5
○ BNF 3205-2.5○ BNF 3205-3○ BNF 3205-4.5○ BNF 3205-5○ BNF 3205-7.5
28
32
5
6
8
104
5
28.7528.7528.7528.7528.7528.7528.7528.7528.7529.2529.2529.2529.7532.532.7532.7532.7532.7532.75
25.225.225.225.225.225.225.225.225.223.623.623.622.43029.229.229.229.229.2
1✕2.52✕1.51✕3.52✕2.53✕2.51✕2.51✕3.52✕2.53✕2.51✕2.52✕1.52✕2.51✕2.53✕2.51✕2.52✕1.53✕1.52✕2.53✕2.5
9.711.312.917.524.89.6
12.917.524.816.819.630.42414.810.2121718.526.3
24.629.534.449.473.824.634.549.473.836.844.273.748.252.728.133.850.756.484.5
250300350500740250350500740270320530280740280340500560810
55555555555555555560606065545858585858
Unit: mm
858585858585858585
104104104106818585858585
44544959745056688668809286604153635671
12121212121212121218181818111212121212
32423747623844567450627468492941514459
69696969696969696982828285677171717171
6.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.511✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕116.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.56.6✕11✕6.5
M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
4.74✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Model number coding
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
( ) KN=KFa
0.3Ca
1 3
whereNote The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing an axial load 30% of the basic dynamic loadrating (Ca). These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the axial load (Fa) is not 0.3 Ca, the rigidity value (KN) isobtained from the following equation.
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .Those models marked with ○ can be attached with QZ Lubricator or the wiper ring.For dimensions of the ball screw nut with either accessory being attached, see pages k-164 and k-165.
k. Dimensions of the Ball Screw
k-153
k153
Standard-LeadPrecisionBallScrew
k-152 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Model BNFModel BNFSingle-nut Non-Preload Type
PCD
(Greasing hole)
A
60°
φd2
B1
φD1 φdp
φd1
φdc
hH
φDg6φd
L1
BNF3206-5 RR G2 +1500L C7
zModel numberxSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
○ BNF 3206-2.5○ BNF 3206-3○ BNF 3206-5○ BNF 3208A-2.5○ BNF 3208A-3○ BNF 3208A-4.5○ BNF 3208A-5○ BNF 3210A-2.5○ BNF 3210A-3○ BNF 3210A-3.5○ BNF 3210A-5○ BNF 3212-3.5○ BNF 3606-2.5○ BNF 3606-3○ BNF 3606-5○ BNF 3606-7.5○ BNF 3608-2.5○ BNF 3608-5○ BNF 3608-7.5
32
36
6
8
10
12
6
8
33333333.2533.2533.2533.2533.7533.7533.7533.753436.7536.7536.7536.7537.2537.2537.25
28.428.428.427.527.527.527.526.426.426.426.426.133.233.233.233.231.631.631.6
1✕2.52✕1.52✕2.51✕2.52✕1.53✕1.52✕2.51✕2.52✕1.51✕3.52✕2.51✕3.51✕2.52✕1.52✕2.53✕2.51✕2.52✕2.53✕2.5
13.916.325.217.820.929.532.326.130.534.847.240.410.712.519.427.518.834.148.3
35.242.270.442.250.77684.456.267.478.6
112.788.531.83863.495.247.595.1
142.1
290350580300360530590310380440620440310370610890330650950
62626266666666747474747665656565707070
Unit: mm
898989
100100100100108108108108121100100100100114114114
45576358718782708780
10098536271896892
116
12121215151515151515151815151515181818
33455143567267557265858038475674507498
75757582828282909090909882828282929292
6.6✕11✕6.56.6✕11✕6.56.6✕11✕6.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.5
11✕17.5✕119✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.5
11✕17.5✕1111✕17.5✕1111✕17.5✕11
M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
8.08✕10-3
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Model number coding
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
( ) KN=KFa
0.3Ca
1 3
whereNote The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing an axial load 30% of the basic dynamic loadrating (Ca). These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the axial load (Fa) is not 0.3 Ca, the rigidity value (KN) isobtained from the following equation.
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .Those models marked with ○ can be attached with QZ Lubricator or the wiper ring.For dimensions of the ball screw nut with either accessory being attached, see pages k-164 and k-165.
k. Dimensions of the Ball Screw
k-155
k155
Standard-LeadPrecisionBallScrew
k-154
BNF3610-5 RR G1 +1800L C5
zModel numberxSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Model BNFModel BNFSingle-nut Non-Preload Type
PCD
(Greasing hole)
A
60°
φd2
B1
φD1φdp
φd1
φdc
hH
φDg6φd
L1
○ BNF 3610-2.5○ BNF 3610-5○ BNF 3610-7.5○ BNF 3612-2.5○ BNF 3612-5○ BNF 3616-2.5○ BNF 3620-1.5○ BNF 4005-3○ BNF 4005-4.5○ BNF 4005-6○ BNF 4006-2.5○ BNF 4006-5○ BNF 4006-7.5○ BNF 4008-2.5○ BNF 4008-3○ BNF 4008-5○ BNF 4010-2.5○ BNF 4010-3○ BNF 4010-3.5○ BNF 4010-5
36
40
10
12
1620
5
6
8
10
37.7537.7537.7538383837.7540.7540.7540.7541414141.2541.2541.2541.7541.7541.7541.75
30.530.530.530.130.130.130.537.237.237.236.436.436.435.535.535.534.434.434.434.4
1✕2.52✕2.53✕2.51✕2.52✕2.51✕2.51✕1.52✕1.53✕1.54✕1.51✕2.52✕2.53✕2.51✕2.52✕1.52✕2.51✕2.52✕1.51✕3.52✕2.5
27.650.171.132.158.432.117.61318.523.715.327.739.219.622.935.72933.838.852.7
63.3126.4190.171.4
142.171.438.342.363.584.744.188.1
132.352.863.4
105.870.484.599
141.1
350680990350690350220400600780350690
1010360430710380450520740
7575757878787067676770707074747482828282
Unit: mm
120120120123123123103101101101104104104108108108124124124124
8111114187
1239275566681486684587182739083
103
1818181818181515151515151515151518181818
6393
12369
105746041516633516943566755726585
989898
10010010085838383868686909090
102102102102
11✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕119✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.59✕14✕8.5
11✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕11
M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.29✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Model number coding
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
( ) KN=KFa
0.3Ca
1 3
whereNote The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing an axial load 30% of the basic dynamic loadrating (Ca). These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the axial load (Fa) is not 0.3 Ca, the rigidity value (KN) isobtained from the following equation.
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .Those models marked with ○ can be attached with QZ Lubricator or the wiper ring.For dimensions of the ball screw nut with either accessory being attached, see pages k-164 and k-165.
k. Dimensions of the Ball Screw
k-157
k157
Standard-LeadPrecisionBallScrew
k-156 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
BNF4510-5 RR G1 +2000L C5
zModel numberxSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
Model BNFModel BNFSingle-nut Non-Preload Type
PCD
(Greasing hole)
A
60°
φd2
B1
φD1φdp
φd1
φdc
hH
φDg6φd
L1
○ BNF 4012-2.5○ BNF 4012-3.5○ BNF 4012-5○ BNF 4016-5BNF 4506A-2.5BNF 4506A-5BNF 4506A-7.5BNF 4508-2.5BNF 4508-5BNF 4508-7.5BNF 4510-2.5BNF 4510-3BNF 4510-5BNF 4510-7.5BNF 4512-5BNF 4520-1.5
○ BNF 5005-4.5○ BNF 5008-2.5○ BNF 5008-5○ BNF 5008-7.5
40
45
50
12
16
6
8
10
12205
8
4242424246464646.2546.2546.2546.7546.7546.7546.754747.750.7551.2551.2551.25
34.134.134.134.141.441.441.440.640.640.639.539.539.539.539.237.947.245.545.545.5
1✕2.51✕3.52✕2.52✕2.51✕2.52✕2.53✕2.51✕2.52✕2.53✕2.51✕2.52✕1.52✕2.53✕2.52✕2.51✕1.53✕1.51✕2.52✕2.53✕2.5
33.945.461.661.4162941.220.737.453.130.735.955.678.865.244.220.221.639.155.4
79.2110.7158.3158.849.699
15059.5
118.6178.479.395.2
158.8238.1178.49979.566.2
132.3198.9
390530750740390750
1100400770
1140420500800
1190820350710430840
1230
8484848480808085858588888888909880878787
Unit: mm
126126126126114114114127127127132132132132130142114129129129
8395
1191525371896892
1168194
11114111995686185
109
1818182215151518181818181818182015181818
6577
101130385674507498637693
1231017553436791
104104104104969696
10510510511011011011011012096
107107107
11✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕119✕14✕8.59✕14✕8.59✕14✕8.5
11✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕119✕14✕8.5
11✕17.5✕1111✕17.5✕1111✕17.5✕11
M6M6M6M6
PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8
1.97✕10-2
1.97✕10-2
1.97✕10-2
1.97✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
3.16✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Model number coding
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
( ) KN=KFa
0.3Ca
1 3
whereNote The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing an axial load 30% of the basic dynamic loadrating (Ca). These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the axial load (Fa) is not 0.3 Ca, the rigidity value (KN) isobtained from the following equation.
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .Those models marked with ○ can be attached with QZ Lubricator or the wiper ring.For dimensions of the ball screw nut with either accessory being attached, see pages k-164 and k-165.
k. Dimensions of the Ball Screw
k-159
k159
Standard-LeadPrecisionBallScrew
k-158 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Model BNFModel BNFSingle-nut Non-Preload Type
PCD
(Greasing hole)
A
60°
φd2
B1
φD1φdp
φd1
φdc
hH
φDg6φd
L1
○ BNF 5010-2.5○ BNF 5010-3○ BNF 5010-3.5○ BNF 5010-5○ BNF 5010-7.5○ BNF 5012-2.5○ BNF 5012-3.5○ BNF 5012-5○ BNF 5016-2.5○ BNF 5016-5○ BNF 5020-2.5BNF 5510-2.5BNF 5510-5BNF 5510-7.5BNF 5512-2.5BNF 5512-3BNF 5512-3.5BNF 5512-5BNF 5512-7.5
50
55
10
12
16
20
10
12
51.7551.7551.7551.7551.7552.2552.2552.2552.752.752.756.7556.7556.755757575757
44.444.444.444.444.443.343.343.342.942.942.949.549.549.549.249.249.249.249.2
1✕2.52✕1.51✕3.52✕2.53✕2.51✕2.51✕3.52✕2.51✕2.52✕2.51✕2.51✕2.52✕2.53✕2.51✕2.52✕1.51✕3.52✕2.53✕2.5
3237.542.858.282.543.45878.872.6
132.372.533.460.785.939.34652.471.3
100.9
88.2105.8123.5176.4264.6109.8153.9220.5183.3366.5183.397
194291.1108.8131.3152.9218.5327.3
450540620880
1290470640910620
1180620490950
1390500590680960
1420
9393939393
100100100105105105102102102105105105105105
Unit: mm
135135135135135146146146152152152144144144147147147147147
739083
1031338799
12311616414181
11114193
107105129165
18181818182222222525281818181818181818
55726585
1156577
10191
1391136393
123758987
111147
113113113113113122122122128128128122122122125125125125125
11✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1114✕20✕1314✕20✕1314✕20✕1314✕20✕1314✕20✕1314✕20✕13
11✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕11
PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
4.82✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
BNF5010-5 RR G1 +2500L C5
zModel numberxSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
Model number coding
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
( ) KN=KFa
0.3Ca
1 3
whereNote The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing an axial load 30% of the basic dynamic loadrating (Ca). These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the axial load (Fa) is not 0.3 Ca, the rigidity value (KN) isobtained from the following equation.
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .Those models marked with ○ can be attached with QZ Lubricator or the wiper ring.For dimensions of the ball screw nut with either accessory being attached, see pages k-164 and k-165.
k. Dimensions of the Ball Screw
k-161
k161
Standard-LeadPrecisionBallScrew
k-160 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
BNF6310-5 RR G2 +3500L C7
zModel numberxSeal symbol - RR: Labyrinth seal attached to both ends of the ball screw nut (see page k-25)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
Model BNFModel BNFSingle-nut Non-Preload Type
PCD
(Greasing hole)
A
60°
φd2
B1
φD1φdp
φd1
φdc
hH
φDg6φd
L1
BNF 5516-2.5BNF 5516-5BNF 5520-2.5BNF 5520-5BNF 6310-2.5BNF 6310-5BNF 6310-7.5BNF 6312A-2.5BNF 6312A-5BNF 6316-5BNF 6320-2.5BNF 6320-5BNF 7010-2.5BNF 7010-5BNF 7010-7.5BNF 7012-2.5BNF 7012-5BNF 7012-7.5BNF 7020-5
55
63
70
16
20
10
12
16
20
10
12
20
57.757.757.757.764.7564.7564.7565.2565.2565.765.765.771.7571.7571.7572727272.7
47.947.947.947.957.757.757.756.356.355.955.955.964.564.564.564.264.264.262.9
1✕2.52✕2.51✕2.52✕2.51✕2.52✕2.53✕2.51✕2.52✕2.52✕2.51✕2.52✕2.51✕2.52✕2.53✕2.51✕2.52✕2.53✕2.52✕2.5
76.1138.276
138.235.464.290.948.187.4
14781
14736.866.994.943.578.9
111.7153.9
201.9402.8201.9403.8111.7222.5334.2139.2278.3462.6231.3463.5123.5247371.4139.2278.3417.5514.5
6501280660
1280550
10501550560
10901420740
1420590
11401680600
116017101550
Unit: mm
110110112112108108108115115122122122125125125128128128130
158158158158154154154161161184180180167167167170170170186
11616412718777
10713787
12316012718781
11114193
129165185
25252828222222222224282818181818181828
9113999
1595585
11565
10113699
1596393
12375
111147157
133133134134130130130137137152150150145145145148148148158
14✕20✕1314✕20✕1314✕20✕1314✕20✕1314✕20✕1314✕20✕1314✕20✕1314✕20✕1314✕20✕13
18✕26✕17.518✕26✕17.518✕26✕17.511✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1111✕17.5✕1118✕26✕17.5
PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8
7.05✕10-2
7.05✕10-2
7.05✕10-2
7.05✕10-2
1.21✕10-1
1.21✕10-1
1.21✕10-1
1.21✕10-1
1.21✕10-1
1.21✕10-1
1.21✕10-1
1.21✕10-1
1.85✕10-1
1.85✕10-1
1.85✕10-1
1.85✕10-1
1.85✕10-1
1.85✕10-1
1.85✕10-1
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .
Model number coding
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
( ) KN=KFa
0.3Ca
1 3
whereNote The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing an axial load 30% of the basic dynamic loadrating (Ca). These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the axial load (Fa) is not 0.3 Ca, the rigidity value (KN) isobtained from the following equation.
k. Dimensions of the Ball Screw
k-163
k163
Standard-LeadPrecisionBallScrew
k-162
BNF8010-5 RR G2 +5000L C7
zModel numberxSeal symbol - RR: Labyrinth seal attached to both ends of the ball screw nut (see page k-25)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Model BNFModel BNFSingle-nut Non-Preload Type
PCD
(Greasing hole)
A
60°
φd2
B1
φD1φdp
φd1
φdc
hH
φDg6φd
L1
BNF 8010-2.5BNF 8010-5BNF 8010-7.5BNF 8020A-2.5BNF 8020A-5BNF 8020A-7.5BNF 10020A-2.5BNF 10020A-5BNF 10020A-7.5
80
100
10
20
20
81.7581.7581.7582.782.782.7
102.7102.7102.7
75.275.275.272.972.972.992.992.992.9
1✕2.52✕2.53✕2.51✕2.52✕2.53✕2.51✕2.52✕2.53✕2.5
38.970.6
10090.1
163.7231.699
179.3253.8
141.1283.2424.3294589883.2368.5737
1105.4
65012701860890
17202520211040806010
Unit: mm
130130130143143143170170170
176176176204204204243243243
77107137127187247131191251
222222282828323232
5585
11599
15921999
159219
152152152172172172205205205
14✕20✕1314✕20✕1314✕20✕13
18✕26✕17.518✕26✕17.518✕26✕17.522✕32✕21.522✕32✕21.522✕32✕21.5
PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8PT 1/8
3.16✕10-1
3.16✕10-1
3.16✕10-1
3.16✕10-1
3.16✕10-1
3.16✕10-1
7.71✕10-1
7.71✕10-1
7.71✕10-1
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Note The model number in a light face type indicate semi-standard types. If desiring them, contact .
Model number coding
OuterdiameterD
FlangediameterD1
OveralllengthL1
H B1 PCD d1×d2×hGreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
K: Rigidity value in the dimensional table.
( ) KN=KFa
0.3Ca
1 3
whereNote The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing an axial load 30% of the basic dynamic loadrating (Ca). These values do not include the rigidity of the componentsrelated to mounting the ball screw nut. Therefore, it is normal-ly appropriate to regard roughly 80% of the value in the tableas the actual value.If the axial load (Fa) is not 0.3 Ca, the rigidity value (KN) isobtained from the following equation.
k-164
Model BNFModel BNFDimensions of the Ball Screw Nut Attached with
Wiper Ring (WW) and QZ Lubricator (QZ)
BNF2505-5 QZ WW G1 +1000L C5
zModel number xWith QZ Lubricator (see page k-22)cSeal symbol - RR : Labyrinth seal attached to both ends of the ball screw nut (see page k-25)
WW : Wiper ring attached to both ends of the ball screw nut (see page k-26)vAxial clearance symbol (see page k-15) bOverall screw shaft length (in mm)nAccuracy symbol (see page k-8)
z b nvcx
Model No.
Dimensions including WW Dimensions including QZ and WW
Nut
length
Flange
width
Flange
diameter
Nut
diameterLength
Outer
diameter
Overalllength incl.QZ and WW
L1 H D1 Dg6 QWL QWD ALBNF 2504-2.5BNF 2504-5BNF 2505-2.5BNF 2505-3BNF 2505-3.5BNF 2505-5BNF 2506-2.5BNF 2506-3BNF 2506-3.5BNF 2506-5BNF 2508-2.5BNF 2508-3BNF 2508-3.5BNF 2508-5BNF 2510A-2.5BNF 2512-2.5BNF 2516-1.5BNF 3205-2.5BNF 3205-3BNF 3205-4.5BNF 3205-5BNF 3205-7.5BNF 3206-2.5BNF 3206-3BNF 3206-5BNF 3208A-2.5BNF 3208A-3BNF 3208A-4.5BNF 3208A-5
3648405245554456506258716682706060415363567145576358718782
11
11
11
15
181111
12
12
15
69
73
76
85
857676
85
89
100
46
50
53
58
585353
58
62
66
32.5
32.5
33
34
373335
32
32
34
45
45
45
45
454545
57
57
57
101113105117110120110122116128126139134150144126130105117127120135109121127126139155150
H
L1
φDφD1
H
QWL
φQWD
QWLL1AL
φDφD1
With WW (without QZ) With QZ + WW
Unit: mm
Model number coding
Note QZ Lubricator and wiper ring are not sold alone.
k. Dimensions of the Ball Screw
k-165
k165
Standard-LeadPrecisionBallScrew
Model No.
Dimensions including WW Dimensions including QZ and WW
Nut
length
Flange
width
Flange
diameter
Nut
diameterLength
Outer
diameter
Overalllength incl.QZ and WW
L1 H D1 Dg6 QWL QWD ALBNF 3210A-2.5BNF 3210A-3BNF 3210A-3.5BNF 3210A-5BNF 3212-3.5BNF 3606-2.5BNF 3606-3BNF 3606-5BNF 3606-7.5BNF 3608-2.5BNF 3608-5BNF 3608-7.5BNF 3610-2.5BNF 3610-5BNF 3610-7.5BNF 3612-2.5BNF 3612-5BNF 3616-2.5BNF 3620-1.5BNF 4005-3BNF 4005-4.5BNF 4005-6BNF 4006-2.5BNF 4006-5BNF 4006-7.5BNF 4008-2.5BNF 4008-3BNF 4008-5BNF 4010-2.5BNF 4010-3BNF 4010-3.5BNF 4010-5BNF 4012-2.5BNF 4012-3.5BNF 4012-5BNF 4016-5BNF 5005-4.5BNF 5008-2.5BNF 5008-5BNF 5008-7.5BNF 5010-2.5BNF 5010-3BNF 5010-3.5BNF 5010-5BNF 5010-7.5BNF 5012-2.5BNF 5012-3.5BNF 5012-5BNF 5016-2.5BNF 5016-5BNF 5020-2.5
708780
10098536271896892
11681
11114187
1239275566681486684587182739083
1038395
119152686185
109739083
1031338799
123116164141
15
18
15
18
18
18
1815
15
15
15
18
18
2215
18
18
22
25
28
108
121
100
114
120
123
123103
101
104
108
124
126
126114
129
135
146
152
152
74
76
65
70
75
78
7870
67
70
74
82
84
8480
87
93
100
105
105
31
33
30
31
33
35
3232
33
35
35
37
38
4235.5
36.5
37.5
38.5
38.5
40.5
73
73
64
64
64
64
6464
66
66
66
66
66
6679
79
79
79
79
79
132149142162164113122131149130154178147177207157193156139122132147118136154128141152147164157177159171195236139134158182148165158178208164176200193241222
Unit: mm
Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
k-166
■ QZ Lubricator for the Ball ScrewHandling●Dropping or hitting the product may damage it. Use much care when handling it.
●Unduly disassembling the product may cause foreign matter from entering the product or
degrade the accuracy. Do not disassemble the product unless it is inevitable.
●Do not clean the product with an organic solvent or white kerosene.
●Do not leave the product package open over a long period of time.
●Do not block the hole for air vent near the model number indication with grease or the like.
Service Temperature Range●Use this product within a temperature range of -10℃ to +50℃. When desiring to use the
product out of this temperature range, contact .
Use in a Special Environment●When desiring to use the product in a special environment, contact .
Corrosion Prevention●QZ Lubricator is designed to provide the essential minimum amount of a lubricant to the ball
raceway. It does not provide a corrosion-prevention effect to the whole Ball Screw.
■ Wiper Ring for the Ball ScrewHandling●Dropping or hitting the product may damage it. Use much care when handling it.
●Unduly disassembling the product may cause foreign matter from entering the product or
degrade the accuracy. Do not disassemble the product unless it is inevitable.
●When using this product in a harsh environment, we recommend using it in combination with
QZ Lubricator.
Service Temperature Range●Use this product within a temperature range of -20℃ to +80℃. When desiring to use the
product out of this temperature range, contact .
Use in a Special Environment●When desiring to use the product in a special environment, contact .
Chemical Resistance●Avoid using the product in an atmosphere containing an acid or alkali solvent.
Precautions on Use
k. Dimensions of the Ball Screw
k-169
k169
Standard-LeadPrecisionBallScrew
k-168 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
BNT2510-5.3 RR G2 +1000L C5
zModel numberxSeal symbol - RR: Labyrinth seal attached to both ends of the ball screw nut (see page k-25)cAxial clearance symbol (see page k-15) vOverall screw shaft length (in mm)bAccuracy symbol (see page k-8)
z bvcx
Model BNTModel BNTNon-preload Type with a Square Ball Screw Nut
BNT 1404-3.6BNT 1405-2.6BNT 1605-2.6BNT 1808-3.6BNT 2005-2.6BNT 2010-2.6BNT 2505-2.6BNT 2510-5.3BNT 2806-2.6BNT 2806-5.3BNT 3210-2.6BNT 3210-5.3BNT 3610-2.6BNT 3610-5.3BNT 4512-5.3
14
1618
20
25
28
32
36
45
45585
105
10
6
10
10
12
14.414.516.7519.320.521.2525.526.828.528.533.7533.75373746.5
11.511.213.514.417.216.422.220.225.225.227.227.230.530.539.2
1✕3.651✕2.651✕2.651✕3.651✕2.651✕2.651✕2.652✕2.651✕2.652✕2.651✕2.652✕2.651✕2.652✕2.652✕2.65
6.87.27.8
18.28.7
14.79.6
43.410.118.327.349.628.752.168.1
12.612.614.734.418.327.82392.825.851.659.5
118.965.6
131.2186.7
190150170270200220240520270510330640360700860
Unit: mm
3434424848486060606070708686
100
131316171718202322222626292936
3535365635583594426764946496
115
262632353535404040405050606075
222222352235226018404560456075
M4✕7M4✕7M5✕8M6✕10M6✕10M6✕10M8✕12M8✕12M8✕12M8✕12M8✕12M8✕12M10✕16M10✕16M12✕20
171721242424303030303535434350
66
21.510999.5
1010101212171720.5
303132.5443946455550506262676780
66685
107
1088
1010111113
2223325————————
M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6
2.96✕10-4
2.96✕10-4
5.05✕10-4
8.09✕10-4
1.23✕10-3
1.23✕10-3
3.01✕10-3
3.01✕10-3
4.74✕10-3
4.74✕10-3
8.08✕10-3
8.08✕10-3
1.29✕10-2
1.29✕10-2
3.16✕10-2
Outerdiameter
W
Centerheight
F
Overalllength
L1 B
Mounting hole
C S×R W1 T M N1 N2GreasingholeA
Screw shaftinertial
moment/mmkg・cm2/mm
Nut dimensions
W
W1
N2
B
TF
M(MAX)
A
(Greasing hole)
4-S×R
φdc φd
N1
L1
C
φdp
Screwshaft outerdiameterd
Lead
R
Ball centerdiameter
dp
Threadminordiameterdc
No. of loadedcircuits
Rows x turns
Rigidity
K
N/μm
Model No.
Basic load rating
Ca C0a
kN kN
Model number coding
K: Rigidity value in the dimensional table.
( ) KN=KFa
0.3Ca
1 3
whereNote The rigidity values in the table represent spring constantseach obtained from the load and the elastic displacementwhen providing an axial load 30% of the basic dynamic loadrating (Ca). These values do not include the rigidity of thecomponents related to mounting the bal l screw nut.Therefore, it is normally appropriate to regard roughly 80% ofthe value in the table as the actual value.If the axial load (Fa) is not 0.3 Ca, the rigidity value (KN) isobtained from the following equation.