Select temporarily J2G and obtain the inputshaft min-1 “n” assuming the worm reduction ratio as “H”.

Next. obtain the required input shaft torque.

Obtain the required power from the valuesand ②

min-1

V : lifting speed (mm/min)n : input shaftC : speed coefficient (see page 7)

N・mT : required input shaft torquea : torque coefficient (see page 7)b : input shaft no load torque (see page 7)W : lifting load (kN)

P : required power kW n : input shaft min-1

T : required input shaft torque N・m

min-1 ……①

……②

n1000Constant

C = 1.33

T = a・W ＋ b

P =

P =

P =

=

n × T

1 . 33751.9=

nV

C=

=

N・m= =T 0.99×30＋2 31.7

min-1

kW=

=T

= =n

=P800×32.1

0.97×30＋3

2.7

N・m=32.1

10001 . 25

800

9550

Load at the time of lifting: 30 kN

2

9550

9550751.9×31.7 kW

W×V b×n

2.5

9550

� : jack efficiency�61200×

Lifting speed: 1000 mm/min.

From page 7, constant a = 0.99, constant b = 2

J2G is 2.3

J3GH is 3.1

Selection of jack size No.

Specification

Select temporarily the size No. of the screw jack having the standard ca-pacity to meet the load.

Assume the worm reduc-tion ratio as"H"and obtain the required input shaft rpm from the lifting speed.

Calculate the required input shaft torque from the load at the time of lifting.

Set the hand wheel radius if the screw jack is to be used for manual operation.

Obtain the required power per jack from the required input shaft torque and rpm.

Check again with ball screw jack Type J-B.

If low speed or fine ad-justment is specially re-quired, check assuming the worm reduction ra-tion as "L"

Is the allowablemaximum input shaft

rpm exceeded?

Is the maximum powerper jack exceeded?

Is the allowable bucklingload exceeded?

No.

No.

No.

Yes.

Yes.

Yes.

Adopt thesize No.

5

If th

e ja

ck i

s so

des

igne

d th

at t

ensi

le l

oads

are

app

lied

to t

he s

crew

, th

e si

ze N

o. c

an b

e se

lect

ed e

cono

mic

ally

with

out

conc

ern

abou

t bu

ckin

g ev

en w

hen

a lo

ng s

trok

e is

nee

ded.

Since the maximum power per jack for J2G is 2.3 kW from the table on page 7, the required power is not met.So the selection of J2G is inappropriate. Change the size No.to J3GH and perform the above calculatins again as follows.

Since the allowable input min-1 for J2G is 1800 min-1, this “n” is acceptable.

As the maximum power per jack for J3GH is 3.1 kW the re-quired power is met. So this size No. shall be adopted.

Required jackperformance

Formula (1)

Formula (2)

Formula (3)

<Step 1>

[Calculation example]

<Step 2>

<Step 3> ①

The following formula can also be used to obtain the re-quired power.

＋

LScrewjack

Ball screwjack H

J 0 G J 1 G J 2 G J 3 G J G A J 4 A J 5 A J 6 A J F A J 7 A

J 0 B J 1 B J 2 B J 3 B

— J 4 B J 5 B J 6 B J F B J 7 B

5 6 6 8 8 8 102/3 102/3 102/3 122/3

24 24 24 24 24 24 32 32 38 36

Remarks:1) If the screw jack is used at input 1,000 min-1 or over, oil Iubrication is adopted.2) The allowable overhang load is obtained by the formula below.

3) In the presence of impact or Vibration, the self-locking function does not work in some cases. Then, the use of brake must be considered.

4) The service temperature ranges for standard products are -15 to +80˚C for JOG to JGA and -15 to +100˚C for J4A to J7A. If these ranges are exceeded, we can meet your requirements at your option. Please consult us.

5) As the lifting screw end is not locked, do not use the jack outside the service ranges.6) Allowable loads of 2 kN and 4 kN are also available. Please refer to special bulletin (J-005).7) If special accuracy, grade, etc., are necessary, please consult us.

Size No. J0G J1G J2G J3G JGA J4A J5A J6A JFA J7A

Capacity kN 10 25 50 100 150 200 300 500 750 1000

Lifting screw diameter and lead mm20 25 40 50 55 63 85 118 132 150

4 5 8 10 10 12 16 16 16 20

Worm gear ratioH 5 6 6 8 8 8 102/3 102/3 102/3 122/3

L 24 24 24 24 24 24 32 32 38 36

EfficiencyH 0.22 0.21 0.21 0.20 0.18 0.18 0.18 0.13 0.13 0.13

L 0.13 0.13 0.12 0.15 0.14 0.14 0.12 0.09 0.08 0.08

H 0.75 1.3 2.3 3.12.8 4 6.5 11 15 17

L 0.4 0.5 1.1 1.8

H 6.0 16.8 51.7 100.1 165 249 376 820 1340 1660

L 2.4 7.4 23.7 47.4 79 115 196 440 630 1000

H 1190 735 420 295 140 135 130 90 75 75

L 1600 640 440 360 290 300 255 190 160 125

H 1800 1800 1800 1800 870 810 795 535 530 510

L 1800 1800 1800 1800 1055 995 825 555 540 400

3.6 9 1529 30 46 76 182 315 565

32 35 53 101 205 350 565

Grease charging quantity kg 0.1 0.4 0.6 1 1.5 2 3 4 6 8

Prevent key torque N·m 15 45 140 360 600 920 1850 4400 7450 11200

Input shaft allowable overhang load N 300 450 700 1200 1200 1200 2200 2500 2500 3000

Input shaft no load torque b N·m 0.3 1 2 3 4 5 10 20 30 40

Troque coefficient aH 0.57 0.63 0.99 0.97 1.07 1.22 1.22 1.6 1.75 1.62

L 0.21 0.25 0.43 0.44 0.5 0.55 0.62 0.84 0.8 0.96

H 0.80 0.83 1.33 1.25 1.25 1.5 1.5 1.5 1.5 1.58

L 0.17 0.21 0.33 0.42 0.42 0.5 0.5 0.5 0.42 0.56

Lifting screw forming Roll threading Machining

Lifting screw cover material Rigid PVC Steel

Maximum allowablepowerper jack kW

Required input at allowable load min-1

Maximum input at allowable load min-1

Allowable maximuminput min-1

Approximate Weight(stroke:100mm) kg

(Without prevent key)

(With prevent key)

Speed coefficient c (screw lead per rotationof input shaft) mm

Overhang load =Input torque (N·m)

Radius of pulley, sprocket, etc.

Reduction ratio H

Reduction ratio H

The size No. can be selected from the graph based on the lifting load and lifting screw speed.

Lift

ing

loa

d (

kN)

Lift

ing

loa

d (

kN)

Lifting screw speed (mm/min)

Lifting screw speed (mm/min)

JFA

JGAJGAJGAJGA

JFA

JGA

Allo

wa

ble

bu

cklin

g lo

ad

(kN

)

（2.1× 105N/mm2） E：modulis of longitudinal elasticity

(N) GG

GG

Allo

wa

ble

bu

cklin

g lo

ad

(kN

)

Allo

wa

ble

bu

cklin

g lo

ad

(kN

)

JFA

JGA

JFA

JGA

JFA

JGA

J 0 G : 16.0 J 1 G : 20.0J 2 G : 32.0 J 3 G : 39.5JGA : 44.5 J 4 A : 50.5J 5 A : 68 J 6 A : 101J F A : 115 J 7 A : 129

200 150 120 100 80 － － －

700 400 300 210 170 140 110 －

1450 900 600 500 400 350 250 210

1300 800 600 450 350 300 240 200

1700 1100 800 650 500 450 350 300

3050 2300 1900 1550 1350 1200 950 750

4750 3900 3200 2700 2250 1900 1500 1200

12650 9150 6750 5650 4700 4050 3200 2600

15900 12000 9300 7600 6400 5550 4400 3600

18700 13750 10900 9000 7650 5700 5300 4400

180 140 110 90 80 － － －

450 400 250 200 170 140 110 －

900 650 500 400 350 300 240 200

800 600 450 350 300 250 220 180

1000 750 600 500 450 400 300 250

2500 1950 1550 1300 1150 1000 800 600

3650 2850 2350 2000 1750 1550 1250 1050

6700 5450 4600 3750 3500 3100 2550 2200

8450 7000 6000 5250 4650 4200 3500 3000

8950 7600 6650 5950 5300 4800 4050 3500

(N)

100 200 300 400 500 600 800 1000

J 0 G

J 1 G

J 2 G

J 3 G

J G A

J 4 A

J 5 A

J 6 A

J F A

J 7 A

StrokeSize No.

mm

(N)

100 200 300 400 500 600 800 1000

J 0 G

J 1 G

J 2 G

J 3 G

J G A

J 4 A

J 5 A

J 6 A

J F A

J 7 A

StrokeSize No.

mm

Allowable side force of lifting-type screw jack: N (If bellows are used, the values for one size No. above are applicable.)

Allowable side force of suspending-type screw jack: N (If bellows are used, the values for one size No. above are applicable.)

If the stroke exceeds 500, please consult us.

Stroke

Symbol

A

A A

L

L H

100

115170 35 90150150230230

200

115170 35 90250250330330

300

115200 35120350350430430

400

115200 35120450450530530

500

115210 35130550550630630

Size No.

Symbol

T H

T J

T K

T L

T M

T N

J 0 G

22

10

100

32

65

9

J 1 G

25

11

108

38

76

11

J 2 G

33

16

119

45

80

18

J 3 G

33

16

146

55

105

22

J G A

47

16

178

70

127

26

J 4 A

52

16

178

70

127

26

J 5 A

64

19

216

90

153

32

Size No.

Symbol

Awith Prevent key

A A

B A

B E

B F

B G

B H

C

D

E

F

G

Hwith Prevent key

K

L

with Prevent key

L Hwith Prevent key

M

N

P

Q

S

T

U

V

W

Z

J 1 G

155(155) 40

ø25 L = 5 53106 54 73 45

44.5 40 92 40115

(115)180

Stroke +

55 ( 55)

170(170) 44 75 13 25 15

M18 × 1.5 22 17 5 11

J 2 G

175(175) 50

ø40 L = 8 75132 73 80 56 56 57112 53125

(125)230

Stroke +

60 ( 60)

185(185) 66 90 13 27 20

M25 × 2 32

22.5 6 18

J 3 G

185(220) 50

ø50 L = 10 95140 84100 56 66 73118 62136

(170)280

Stroke +

60 ( 60)

196(230) 84120 20 42 25

M32 × 2 32 28 8 22

J G A

220(270) 60

ø55 L = 10 98152 84100 70 66 76130 62160

(210)290

Stroke +

60(160)220

(170) 84120 20 42 25

M40 × 2 45 28 8 22

J 4 A

235(305) 60

ø63 L = 12105180102105 85 73 76150 72175

(244)300

Stroke +

65( 65)240

(309) 89.1

134 19 43 25

M45 × 2 50 28 8 26

J 5 A

280(410) 70

ø85 L = 16130225125145100 95 95190 90210

(339)360

Stroke +

75(175)285

(514) 114.3

175 25 50 35

M60 × 2 62 38 10 33

( )

( )

( )

( )

Size No.StrokeSymbol J 1 G

195(195)

230(230)

270(270)

270(270)

80

115

155155

155

255

355

455

555

655

855

75

100200

300400500

600

800

100200

300400500

600800

100

200

300

400

500

600

800

A

A A

L

B D

J 2 G

215(215)

250(250)

290(290)

290(290)

90

125

165165

160

260

360

460

560

660

860

95

J 3 G

225(260)

260(295)

300(335)

300(335)

90

125

165165

160

260

360

460

560

660

860

110

J G A

265(315)

300(350)

340(390)

340(390)

105

140

180180

160

260

460

560

860

660

860

110

J 4 A

285 (355)

320

(390)

360 (430)

360 (430)

110

145

185

185

265 (265)

365 (365)

365 (465)

465 (565)

565 (865)

865 (665)

1065 (865)

120

J 5 A

335 (465)

370

(500)

410 (540)

410 (540)

125

160

200

200

175 (175)

275 (275)

375 (475)

475 (675)

575 (675)

875 (875)

1075 (875)

140

Size No.

Symbol

T A

T B

T C

T D

T E

T F

T G

J 0 G

60

45

15

15

32

22

15

J 1 G

70

50

20

20

40

25

20

J 2 G

105

75

30

30

50

32

25

J 3 G

115

80

35

35

63

36

30

J G A

140

100

40

40

85

45

40

J 4 A

150

110

40

40

85

45

40

J 5 A

215

150

65

65

90

55

50

100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

285 385 485 585 685 785 885 985 1085 1185 1285 1385 1485 1585 1685

L U L I L U L I L U L I L U L IJ 0 G J 1 G J 2 G J 3 G

205 305 405 505 605 705 805 905 1005 1105 1205 1305 1405 1505 1605

350 450 550 650 750 850 950 1050 1150 1250 1350 1450 1550 1650 1750

260 360 460 560 660 760 860 960 1060 1160 1260 1360 1460 1560 1660

390 490 590 690 790 890 990 1090 1190 1290 1390 1490 1590 1690 1790

280 380 480 580 680 780 880 980 1080 1180 1280 1380 1480 1580 1680

430 530 630 730 830 930 1030 1130 1230 1330 1430 1530 1630 1730 1830

320 420 520 620 720 820 920 1020 1120 1220 1320 1420 1520 1620 1720

Size No,

Stroke

Direction

(Unit: mm)

Size No. Symbol

J 0 GJ 1 GJ 2 GJ 3 GJ G AJ 4 AJ 5 A

A Aø20L= 4ø25L = 5ø40L = 8ø50L = 10ø55L = 10ø63L = 12ø85L = 16

A B12172535404565

A C 20 28 45 56 63 71100

B A 80 90125160190224250

B B 63 63100125140160200

B C 40 40 63 80 90100125

B D 45 63 80 90100112140

B E12.516 25 31.535.540 50

C A 80115125136160175210

C B25252535606575

C D 55 75 90120120134175

C E – 35 50 60 60 70100

C F –

2 4.5 8181820

C C34

48.6 60.5 76.3 76.3 89.1114.3

Z4444444

d 9 (M 8)11 (M10)14 (M12)18 (M16)22 (M20)22 (M20)26 (M24)

Table of dimensions:

For dimensions of Type J6A and larger, please consult us.

Grease fitting

Grease fitting

J 0 G

J 1 G

J 2 G

J 3 G

R

100

100

–

–

K

135

140

–

–

AJ

95

100

–

–

R

–

200

–

–

K

–

210

–

–

AJ

–

115

–

–

R

–

–

300

300

K

–

–

275

285

AJ

–

–

180

190

R

–

–

–

450

K

–

–

–

290

AJ

–

–

–

195

Type 100 Type 200 Type 300 Type 450Size

Size No.

Dimensions

* The grip size for Type 100 only is 40.

Table of dimensions

10 25 25 50 50 100 200 300 0 1 1 2 2 3 4 5

BAー00 BAー0 BAー1 BAー2

20 25 25 40 40 50 63 85 4 5 5 8 8 10 12 16 2.5 3 4.11 6

0.27 0.26 0.26 0.27 0.27 0.26 0.23 0.23

Allowable load (KN)

Lifting screw diameter (φ)

Lifting screw lead (mm)

Ratio

Efficiency

A

B

C

D

E

F

G

H

K

L

M

N

P

S

T

U

V

W

A A

A B

A C

A D

A K

154 60 45 　 178 － 122 76.5

139.7 4 60 95 － 37

171 60 45 210 － 135 85

165.1 4 85

226 60 45 289 － 155 95 254 8 150

305 60 55 386 343 225 140

298.5 8 134 175 19

0 1 1 2 2 3 4 5

35 45 45 55 55 55 65 75

M14×1.5 M18×1.5 M18×1.5 M25×2 M25×2 M32×2 M45×2 M60×2

310 460 610 92 97 112

20 22 22 32 32 32 50 62 92 120

15 17 17 18 120 125

40 32 39 74 105 160 72 77 80 82 89 124 165 230

BA－0BA－00 BA－1 BA－2

Stroke ＋170

Stroke ＋170

Stroke ＋180

Stroke ＋180

Stroke ＋210

Stroke ＋210

Stroke ＋285

Stroke ＋275

Symbol

Size No.

Type

Item

Size No.

Type

M16×2, depth 25 M20×2.5, depth 25 M16×2, depth 25 M20×2.5, depth 31

＋0 －0.0595.2 ＋0

－0.076127 ＋0 －0.076152.4 ＋0

－0.076177.8

＋0 －0.13631.56 ＋0

－0.13631.56 ＋0 －0.13631.56 ＋0

－0.13635.5＋0.030 －0.01510＋0.030

－0.0157＋0.030 －0.0157＋0.030

－0.0157＋0 －0.0428.56 ＋0

－0.0428.56 ＋0 －0.0428.56 ＋0.009

－0.03432

Please designate code No. (size No. -type)Example: " BA-00-0" (" Size No. BA-00, Iifting screw diameter

20 mmφand lead 4 mm" )

R

J

Type 12 Type 18 Type 24Symbol

Size

KN

N・m

N・m

N・m

N・m

10 25 50 100 200 300 500 750 1000

3 9 . 8 24 45 115 163 327 563 690

1 . 2 4 12 22 55 88 180 270 350

5 15 45 115 300 600 1250 2250 3500

300 450 700 1200 1200 2200 2500 2500 3000

0 . 3 1 2 3 5 10 20 30 40

1 . 5 5 13 21 56 80 160 180 370

0 . 18 0 . 7 1 . 5 3 . 5 10 9 14 15 21

N

2) The maximum input rotational frequency is 1,800 min-1. If the jack is used at input 1,000 min-1 or over, oil lubrication is adopted.

Input torque (N・m)Radius of pulley, sprocket, etc.

B

kN

ø

mm

H

L

H

L

kW

H

L

H

L

H

L

kg

kg

N·m

N

N·m

H

L

H

L

Size No.

Capacity

Lifting screw diameterand lead

Worm gear ratio

Efficiency

Maximum allowable power per jack

Required input torque N·m

for allowable load

Worm rotation per10mm of stroke

Holding torque N·m

Approximate weight(stroke: 100 mm)

Grease charging quantity

Prevent Key torque

Input shaft allowable oberhang load

Input shaft no load torque

Torque coefficient a

Speed coefficient c(screw lead per rotation of input shaft) mm

J 0 B

10

205

5

24

0.61

0.36

0.75

3

1.2

10

48

1.5

0.18

5

0.15

5

300

0.3

0.27

0.09

1

0.21

J 1 B

25

258

6

24

0.61

0.36

1.3

9.8

4

7.5

30

5

0.7

11

0.6

15

450

1

0.35

0.12

1.33

0.33

J 2 B

50

3610

6

24

0.60

0.34

2.5

24

12

6

24

13

1.5

20

0.9

45

700

2

0.44

0.2

1.67

0.42

J 3 B

100

4512

8

24

0.58

0.41

3.7

45

22

6.7

20

21

3.5

40

1.5

115

1200

3

0.42

0.19

1.50

0.5

J 4 B

200

6016

8

24

0.58

0.43

6

115

55

5

15

56

10

70

3

300

1200

5

0.55

0.25

2

0.67

J 5 B

300

8020

102⁄3

32

0.59

0.39

9.5

163

88

5.3

16

80

9

130

4

600

2200

10

0.51

0.26

1.87

0.63

J 6 B

500

10024

102⁄3

32

0.58

0.37

14

327

180

4.4

13.3

160

14

270

6

1250

2500

20

0.61

0.32

2.25

0.75

J F B

750

120 28

102⁄3

38

0.59

0.37

17

563

270

3.8

13.6

180

15

500

8

2250

2500

30

0.71

0.32

2.62

0.74

J 7 B

1000

14032

122⁄3

36

0.60

0.36

22

690

350

3.9

11.2

370

21

750

12

3500

3000

40

0.65

0.31

2.53

0.89Roll threading

Rigid PVC

Machining

Steel

Lifting screw forming

Lifting screw cover material

Lift

ing

loa

d (

kN)

Lift

ing

loa

d (

kN)

1000

750

500

300

200

100

50

25

10

3

1000

750

500

300

200

　

100

50

25

10

3

JFB

JFB

Allo

wa

ble

bu

cklin

g lo

ad

(kN

)

1000

500

300

200

100

50

25

10

5

1

0 . 5

Allo

wa

ble

bu

cklin

g lo

ad

(kN

)

1000

500

300

200

100

50

25

10

5

1

0 . 5

Allo

wa

ble

bu

cklin

g lo

ad

(kN

)

1000

500

300

200

100

50

25

10

5

1

0 . 5

（2.1× 105N/mm2） E：modulis of longitudinal elasticity

(N)

JFB

JFB

JFB

J 0 B : 17.5 J 1 B : 21.4J 2 B : 31.2 J 3 B : 39.6J 4 B: 53.0 J 5 B : 70.5J 6 B : 88.3 J F B : 106.4J 7 B : 123.7

Lo

ad

(kN

)

1000

750

500

300

200

100

50

25

10

5

Expected traveling distance (m) =Stroke (m) � 2 � number of reciprocations/day � 365 days � expected number of years

Example of table lifter using ball screw jacks

JFB

If the stroke exceeds 500, please consult us.

Stroke

Symbol

A

A A

L

L H

100

175225 40 90150250285385

200

175225 40 90250350385485

300

175255 40120350450485585

400

175255 40120450550585685

500

175265 40130550650685785

Size No.

Symbol

T H

T J

T K

T L

T M

T N

J 0 B

22

10

100

32

65

9

J 1 B

25

11

108

38

76

11

J 2 B

33

16

119

45

80

18

J 3 B

33

16

146

55

105

22

J 4 B

52

16

178

70

127

26

J 5 B

64

19

216

90

153

32

Size No.

Symbol

A

A A

B A

B E

B F

B G

B H

B J

C

D

E

F

G

H

K

L

L H

M

N

P

Q

S

T

U

V

W

Z

J 1 B

200

45

ø25 L = 8

53

106

54

73

76

45

44.5

40

92

40

156

180

Stroke +

55

211

44

75

13

25

15

M18 × 1.5

22

17

5

11

J 2 B

265

55

ø36 L = 10

75

132

73

80

94

56

56

57

112

53

211

230

Stroke +

60

271

66

90

13

27

20

M25 × 2

32

22.5

6

18

J 3 B

330

55

ø45 L = 12

95

140

84

100

120

56

66

73

118

62

275

280

Stroke +

60

335

84

120

20

42

25

M32 × 2

32

28

8

22

J 4 B

430

75

ø60 L = 16

105

180

102

105

155

85

73

76

150

72

357

300

Stroke +

65

422

89.1

134

19

43

25

M45 × 2

50

28

8

26

J 5 B

525 85

ø80 L = 20

130

225

125

145

188

100

95

95

190

90

443

360

Stroke +

75

518

114.3

175

25

50

35

M60 × 2

62

38

10

33

Size No.StrokeSymbol J 1 B

235

270

310

80

115

155

255

355

455

555

655

855

1055

75

100

200

300

400

500

600

800

100

200

300

400

500

600

800

100

200

300

400

500

600

800

A

A A

L

B D

J 2 B

300

335

375

90

125

165

260

360

460

560

660

860

1060

95

J 3 B

365

400

440

90

125

165

260

360

460

560

660

860

1060

110

J 4 B

465

500

540

110

145

185

265

365

465

565

665

865

1065

120

J 5 B

570

605

645

125

160

200

275

375

475

575

675

875

1075

140

Size No.

Symbol

T A

T B

T C

T D

T E

T F

T G

J 0 B

60

45

15

15

32

22

15

J 1 B

70

50

20

20

40

25

20

J 2 B

105

75

30

30

50

32

25

J 3 B

115

80

35

35

63

36

30

J 4 B

150

110

40

40

85

45

40

J 5 B

215

150

65

65

90

55

50

100 200 300 400 500 600 700 800 900100011001200130014001500

L U

300 400 500 600 700 800 90010001100120013001400150016001700

J 0 B J 1 B J 2 B J 3 B

L I

220 320 420 520 620 720 820 9201020112012201320142015201620

L U

350 450 550 650 750 850 95010501150125013501450155016501750

L I

260 360 460 560 660 760 860 9601060116012601360146015601660

L U

410 510 610 710 810 910101011101210131014101510161017101810

L I

300 400 500 600 700 800 90010001100120013001400150016001700

L U

490 590 690 790 890 990109011901290139014901590169017901890

L I

375 475 575 675 775 875 97510751175127513751475157516751775

(Unit: mm)

Stroke

Size No.Direction

We can manufacture lifting screws of lengths other than those shown above. Please consult us.

(Unit: mm)

Size No.Symbol

J 0 B

J 1 B

J 2 B

J 3 B

J 4 B

J 5 B

A A

ø 20 L = 5ø 25 L = 8ø 36 L = 10ø 45 L = 12ø 60 L = 16ø 80 L = 20

A B

121725354565

A C

20 28 45 56 71100

B A

67 83100150200250

B B

55 65 80115155200

B C

44 47 60 70 94125

B D

58 66 98150187235

B E

121618303545

B F

–3039516277

B G

–3548577796

C A

80115125136175210

C B

305560606575

C C

34 48.6 60.5 76.3 89.1114.3

C D

55 75 90120134175

C E

– 32 45 60 70100

C F

–1215181820

d

5.5 911182226

Drawing of dimensions:

For dimensions of Type J6B and larger, Please consult us.

2) They can be used at high-speed rotation (1,800 min-1 maximum).

196 197 222 231 236 240 262 291 351 344

85 90 115 140 145 150 180 279 300 305

J0G ( B )

J1G ( B )

J2G ( B )

J3G ( B )

JGA

J4A ( B )

J5A ( B )

J6A ( B )

JFA ( B )

J7A ( B )

(Unit: mm)Symbol

Size No.A

85 90115140145150180279300305

B

196197222231236240262291351344

Remove the cover.1

Raise the center of stopper with pushing it. (This enable the setting button to be pushed.)

2

Raise the "A" button into locked position with pushing it. (This will release the internal clutch engagement. Make sure that the white lines in the window are in line. If it is not in line, repeat above setting procedure again. )

3

4

Once reached to the setting position, stop the equipment, then make sure the white lines in line.

5

Recover the "A" button into the original position.6

7

89

10Turn on the equipment and operate to the setting position.

Make sure the operation. Put the screw jack back slightly, then operate to the set position.

Set "B" button as same as "A".

Once confirmed ""A" & "B" operation, return the stopper.

Put the cover back.

Geared limit switch setting procedure

Size No.

J0G• J0B

J1G• J1B

J2G• J2B

J3G• J3B

JGA

J4A• J4B

J5A• J5B

J6A• J6B

JFA• JFB

J7A• J7B

A

85 90115140145150180279300305

B2 Train Type

193202227253257262290392412423

B'4 Train Type

275284309335339344372474494505

C2 Train Type

278292342393402412470671712728

C'2 Train Type

360374424475484494552753794810

Setting direction symbols

∑T∑J N

t

×

9.55× ＝

∑ T Total braking torque in terms of motor shaft:

:（N・m）

N motor min-1

T(L) : （N・m） load torque

∑J = J(H) + J(C1) + J(GR) + (J(C2) + J(JACK))×(1/i)2

∑J: total of J in terms of motor shaftJ(H): J of motor with brake

J(C1): J of coupling on motor sideJ(C2): J of coupling on jack sideJ(GR): J in terms of the input shaft of intermediate

speed reducerJ(JACK): J in terms of the worm shaft of jack

i: reduction ratio of intermediate speed reducer

Further, the necessary braking torque is calculatedfrom the stop time and the J of the driving rotarybody.

（Unit N m） ： ・

50 50 145 272 272 272 834 1106 1954 1954

J0G(B) J1G(B) J2G(B) J3G(B) JGA J4A(B) J5A(B) J6A(B) JFA(B) J7A(B)

Size No.

IndicationB

C

D

E

F

G

H

K

M

N

P

Q

S

W

d

Bolt size

J 0 G

J 0 B

50 22 50 80 30 12 60 54104254140 20 15170 11M10

J 1 G

J 1 B

60 20 70110 40 12 80 70134250100 22 25140 11M10

J 2 G

J 2 B

70 40 90150 50 18 85 90186340150 40 35200 18M16

J 3 G

J 3 B

80 55120170 60 24120100210400190 45 50240 22M20

J G A

–

90 65140190 65 26130110240435200 50 60260 22M20

J F A

J F B

140120220400120 50210220500860400115110520 45M42

J 7 A

J 7 B

160 140 260 400 140 55 270 250 5001170 640 150 130 780 55 M52

J 4 A

J 4 B

100 75160230 70 28140120280460205 50 70270 26M24

J 5 A

J 5 B

120 90180270 90 36170150330600280 80 80360 33M30

J 6 A

J 6 B

140120220320120 50200220400960500100100620 45M42

JMG-H JSG-H JSG-L

600W

one for 2 kN and one for 5 kN.

kN

mass

kN

Main specifications

Item

Allowable load kN

Lifting screw diameter

Worm gear ratio

Efficiency

Maximum power per

Approximate mass

Size No.JMG-H

2

φ16×3

3

0.22

320W

1.1kg

JSG-H

5

φ20×4

5

0.22

600W

1.9kg

JSG-L

5

φ20×4

24

0.13

230W

1.9kg

(stroke: 100 mm)

Main specifications

Item

Standard capacity kN

Rack diameter

Rack lead per revolutionof input shaft

Efficiency

Maximum speed

Size No. JMR

2

20mm

106.8mm/rev.

0.9

8m/min at 75min-1

JSR

4

30mm

160.2mm/rev.

0.9

8m/min at 50min-1

Jack Inquiry SpecificationScrewBall screwRackYour company name:

Tel: Fax:

Name of person in charge

Load conditions

Customer name

Date:

User name

Machinery namePurpose of useNecessary function

LiftingTransfer

TiltingAdjustment

Pushing upSustention

OpeningConstant -amount

Total maximum load

Number of jacks

Maximum load per jack

Total maximum load

Number of jacks

Maximum load per jack

Load direction

kN

kN

kN

kN

kN

Compression

Jack fixed

Jack supported

Jack fixed

Tension Both direction

Mounting conditions in the case of compressive load

Shaft end free

Shaft end supported

Shaft end supported

Lateral load

Offset

None

None

Applied

Applied

kN

mm

Operating conditions Service conditions

Service environment

Service frequencyRequired stroke mm

Driving source

Manual

Electric motor

Air motor

With brake

Geared motor

Hydraulic motor

Without brake

Power kW p Hz

Driving shaft rotation frequency min-1

Jack input rotational frequency min-1

Worm reduction ratio i ==

==Lifting screw lead L mm

Lifting screw speed

Limit switch

mm/min

Hr/day

m/day

reciprocations in minutes reciprocations/day

hours

Operating days days/month days/year

Expected life

Indoor Outdoor

Very dusty Rather dusty Not dusty

Ambient temperature range ˚C to ˚C

Impact and Vibration Quiet operation

Some impact and vibration

Great impact and vibraton

Not necessary

Stainless steel lifting screw must be used

(SUS 304)

Consideration of corrosion resistance

Lifting screw direction

Lifting screw prevent key

Lifting screw bellows

Lifting screw end shape

Upright Inverted

Necessary

Necessary

Not necessary

Not necessary

Screw end

Clevis

Disc

Plain end

Necessary Not necessary Selection of type and specification

Specification

Type

Number of jacks

Date of delivery

7 Kirihara - cho, Fujisawa - shi, Kanagawa - ken, 252 Japan

2-row type (2TR) 4-row type (4TR)

When you inquire for jacks, please copy this inquiry specification and fill it up.

Head Office

Sales Head quater NOF Yokohama Nishiguchi Building11-11 Kitasaiwai1 chome, Nisiku,Yokohama 220-0004 JapanTelephone : 045-326-2065Facsimile : 045-320-5961http://www.nippon-gear.co.jp

BULLETIN R - 301F 70131 AS

DYN

AMIC

LO

ADST

ATI

C L

OA

D