Please Ask Questions - Helical Products...
Transcript of Please Ask Questions - Helical Products...
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KNOW THE CATALOG
Derek EvansTom Puerling
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Presentations&
Seedbox
Custom Couplings,Assemblies, U-joints
Generate-Only
TechnicalOrientation
CatalogStandards
CouplingSelection
MachinedSprings
Where are we?
Pyramid of Flexure Knowledge
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Morning Agenda
Standard Coupling Choices
Special Bore Configurations
Afternoon Agenda
Engineering Proposal Form (EPF)
Standard Coupling Identification
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Please Ask Questions
Morning Goal
By the end of this session…
Series Characteristics
Valid Part Numbers
Catalog Familiarity
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Why a flexible coupling?
Imperfect shaft alignment
Reduce bearing loads
Lighter duty
Longer life
Better than a rubber hose!
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Why a Helical coupling?
One piece – no moving parts, no lubrication, improved reliability
Zero Backlash
High-quality
Best engineering staff on the planet!
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Stepper Motors/Servo Motors
Applications
Ball Screws/Lead Screws/ActuatorsTachometers/Encoders/ResolversPumpsFans
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Need to connect two shafts…
Applications
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IndustriesCommercial Data Storage
Robotics for Semi-Conductor Industry
Pick-and-Place Robotics
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Recreation Agriculture
Automotive Solar
Industries
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What is a Standard Coupling?
In the Helical Products Catalog
W, A, H, DS, MC, PF, X
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Please remove
the Helical
Products
catalog from
your binder and
turn to Page 9
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W - Series
Stainless Steel & Aluminum
Metric Fasteners
External Dimensions & Performance in Metric Units
Keyways available (Appendix C) – 40mm OD & 50mm OD
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Building Part Numbers
WAC30-10mm-10mm
W7C30-10mm-10mm
Material:
A : Aluminum, 7075-T6
7 : Stainless Steel, 17-4PH
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Integral ClampWAC or W7C
Clamps around entire shaft
No need for flats
Will not mar shafts
Put-on / Take-off applications
Reversing applications
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Used with flatsShorter than clamp modelsMore EconomicalLarger bores without a Clearance Diameter
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Clearance Diameter
For larger bores, the cap screw is moved away from center and the head protrudes
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Building Part Numbers
W7C30-10mm-10mm
W730-10mm-10mm
Attachment style:
“C” : Integral Clamp
No “C” : Set Screw
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WAC25-10-10
Basic Part Number
W : World Series
A : Aluminum
-or- 7 : Stainless Steel
C : Integral Clamp
25 : OD Designator (mm)
Bore sizes: 10mm
NO!!!
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Bore Designators Appendix (B)
Can be standard or metric or both
Inch : -16-12
Metric : -10mm-8mm
Non-Standard : .222 inch
Not 7/32 = .219
Not 8/32 = .250
.222 = 5.64mm : -5.64mm
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Bore combination examples
-10mm-10mm
A1 metric, A2 metric
-10mm-12
A1 metric, A2 standard
-12-12
A1 standard, A2 standard
-10-6mm
A1 standard, A2 metric
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Building Part Numbers
W7C30-10mm-10mmW7C30-10-10
-10mm-10mm : Bore Designators
-10-10 : Bore Designators
-10 : Bore Designator
-10 = 10/32 inch = 5/16 inch = .313
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Questions you may have
So, bores can be metric or standard, either both or mixed?
YES!
Does the catalog show all possible bores?
NO!
My customer has a 9.135mm bore. Can we make this?
Yes, but…
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Basic Part Number
W : World Series
A : Aluminum
-or- 7 : Stainless Steel
C : Integral Clamp
25 : OD Designator (mm)
WAC25-10mm-8mm
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Basic Part Number
W : World Series
7 : Stainless Steel
-or- A : Aluminum
: Set Screw
20 : OD Designator (mm)
Bore sizes?
W720-8mm-8
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Basic Part Number
W : World Series
7 : Stainless Steel
-or- A : Aluminum
C : Integral Clamp
40 : OD Designator (mm)
Bore and keyway sizes? (Appendix B & C)
W7C40-14mmQ5-12K1
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W-series Notes1. Shaft misalignments:
Angular: 5 degreesParallel Offset: .25mm (.50mm T.I.R.)Axial Motion: ± .25mm
2. Dynamic torque ratings are momentary values. For non-reversing applications, divide by 2. Divide by 4 for reversing applications. Should the torque ratings be marginal for your application, contact us for analysis.
3. Material: 7075-T6 aluminum alloy.Finish: clear anodize.
or Material: 17-4 PH high strength stainless steel.Finish: natural
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Notes (continued)
4. Manufacturing dimensional tolerances unless otherwise specified are:
fraction ± .5mmx.xx ± .25mm
5. Please refer to page 18 for other available bore dimensions.
6. Inertia is based on smallest standard bore diameter.
7. Keyways available on the 40mm and 50mm OD only.
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Torque Example
Specs: 10mm shafts, continuous (non-reversing) operating torque of 1.1Nm, aluminum, clamping
What is the complete part number for the smallest W-series coupling that will work?
Answer: WAC25-10mm-10mm
How? 1.1Nm X 2 (service factor) = 2.2Nm(momentary dynamic torque)
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Torque Example
Specs: 10mm shafts, reversing operating torque of 1.1Nm, aluminum, clamp
What is the complete part number for the smallest W-series coupling that will work?
Answer: WAC30-10mm-10mm
How? 1.1Nm X 4 (service factor) = 4.4Nm MIN (momentary dynamic torque)
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Torque
What if my customer only has a MAX motor rating?
The actual operating torque may be much less.
Try to find a momentary dynamic torque rating at least as high as the MAX motor rating.
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Questions you may have
What shaft tolerance is recommended with the integral clamp?
+.000/-.001in.
What kind of set screws are used?
Cup point
Can I ask for a different screw (size, material)?
Yes, but….
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Part prefixes for metric screws
A: ACRM, ARM
H: HCRM, HRM
DS: DSACM
MC: MCACM, MCAM, MC7CM, MC7M
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Series Available with Metric Screws ONLY
W: WAC, WA, W7C, W7
X: XCA
PF : PFA, PFS
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Your turn to be the engineer,
Pat Owens!
Specs: Aluminum, 40mm OD, integral clamps, 12mm A1 bore, 10mm A2 bore
ANSWER: WAC40-12mm-10mm
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Ring…ring…another call,
John Perry
Specs: Stainless, 25mm OD, set screws, bores are 5mm and ¼”
ANSWER: W725-8-5mm
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Let’s take a break...
10 minutes....
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Performance Comparison
Material Torque TorsionalFlexibility
Cost
AluminumAlloy7075-T6
10 lbin .10 deg/lbin $ 10
StainlessSteel17-4 H900
20 lbin .04 deg/lbin $ 20
StainlessSteel303
10 lbin .04 deg/lbin $ 20
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Examples of Long Term Sales
4085-8-8General Dynamics/US Army M1 Tank1,000’s per year since ‘79
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High-Volume Standards
ACR075-8-8
Average 12,000 pieces ordered per year since 2005
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What is a “Flexure Fact” ?
Tool to expand opportunities
Brief story of actual success
Format
Challenge
Solution
Answer
Picture/Drawing
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Flexure Facts
Industries:
Industrial and Manufacturing
Aerospace and Aviation
Medical
Commercial
Recreational
Agricultural
Automotive
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80 Flexure Facts
www.heli-cal.comand in your Engineering Seminar binder
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DS- Series
In The Catalog On Pages 12-13
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DS Series, Double Start
Aluminum
Low Inertia
High Torsional Stiffness
Integral Clamp Only
Larger Shaft Sizes Than A & H With Relief
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Part Number Quiz for Rick DeArmond
DSAC125-16-12
DSAC : Basic Model Number
DS : Double Start
A : Aluminum
C : Clamp
125 : OD Designator 1 ¼” (1.250”)
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MC Series
In The Catalog On Pages 14-15
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MC Series
Aluminum or Stainless Steel
Motor Coupling series
High Parallel Offset Capacity
Keyways available (Appendix C)
3600RPM
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Part Number Quiz forDave Wieser
MCAC150-16-12MCAC : Basic Model Number
MC : Motor Coupling
A : Aluminum
C : Clamp
150 : OD Designator 1 ½” (1.50”)
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Part Number Quizfor Kyle Sitton
MC7CM150-14mmQ4-16K4
MC7 : Stainless Steel
C: Integral C
150: 1 1/2 inch OD Lamp
Bore sizes and keyways? (Appendix B & C)
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A Series
Aluminum
Light-Duty
Non-Magnetic
Most Economical
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H Series
Stainless Steel
Heavy-Duty
High Torque Capacity
Fatigue-Resistant Material
High Torsional Stiffness
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Building Part Numbers
ACR112-16-12HCR112-16-12
Material:
A : Aluminum
H : Stainless Steel
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Building Part Numbers
ACR112-16-12AR112-16-12
Attachment style:
ACR : Integral Clamp
AR : Set Screw
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Building Part Numbers
ACR112-16-12HCR112-16-12
Internal configuration:
R : Relief
No “R” : no relief
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*dark areas show the amount of relief within the coupling interior
With Relief* / ACR & AR
Equal Diameter Shafts Unequal Diameter Shafts
Without Relief / Restricted Bore Configuration
Unequal Diameter Shafts Equal Diameter Shafts
Bore Configuration Styles (A)
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ACR112-16-12
Part Number Quiz
Steven Hernandez
ACR : Basic Model Number
A : Aluminum
C : Integral Clamp
R : Relief
112 : OD Designator 1 1/8” (1.125”)
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AC100-16-12
Part Number Quizfor Josep Pena
AC : Basic Model Number
A : Aluminum
C : Integral Clamp
No “R”: No Relief
100 : OD Designator
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Standard OD Designatorsfor A and H series
037 : 3/8 inch coupling OD
050 : 1/2 inch coupling OD
062 : 5/8 inch coupling OD
075 : 3/4 inch coupling OD
087: 7/8 inch coupling OD
100 : 1 inch coupling OD
112 : 1 1/8 inch coupling OD
125 : 1 1/4 inch coupling OD
Is that all!?
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Another question…
I noticed the A-series note #4 says “Metric fasteners available on request.”
Yes, the A, H, DS and MC series can have metric screws.
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Recap - A Series
Aluminum
Light Duty
Non-Magnetic
Clamp or Set-Screw
Relief
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Recap - H Series
Stainless Steel
Heavy Duty
High Fatigue Resistance
Clamp or Set-Screw
Relief
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Part Number QuizforBob Kirkland
HCR075-8-4
H : Stainless SteelC : ClampR : Relief075: 3/4 inch OD-8-4 : 1/4 inch Major Bore
1/8 inch Minor Bore
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Part Number Quiz
for David Jadrych
HR100-12-8mmH : Stainless Steel Set
R : Relief Screw
100: 1 inch OD
-12-8mm : 3/8 inch Major Bore
8mm Minor Bore
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Part Number Quizfor Spencer Abramson
ACR100-6mm-5mmA : Aluminum
C : Clamp
R : Relief
100: 1 inch OD
-6mm-5mm : 6mm Major Bore
5mm Minor Bore
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Which parts are stainless and which are aluminum?
Stainless is slightly magnetic and has a sheen.
Anodized aluminum will be non-magnetic and have a grey finish.
Material Identification
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80
.37in
Step
BCS 8
Quiz
MC7100-16-12A1 bore : Relief or Step?.........................
What is the depth?...................................
What is the BCS? (Appendix A)…..
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X – Series :
Cross Slot Couplings
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X - Series
Low-Cost Alternative to Bellows
Very High Torsional Stiffness
Aluminum Only
Integral Clamp Only
Always has Relief
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U-joints
Attachments
Springs
Idea Stimulators
Catalog Page 22-24
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CatalogPage 25
Engineering Proposal Form
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CatalogPage 26
Top Industries Served
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Keyword Review
NO MOVING PARTSGreater reliability and no lubrication required
ZERO BACKLASHCritical for feedback applications
SPECIAL MATERIALSOnly Helical works with 17-4
Engineering Proposal Form (EPF)OD, length bores, attachment, torque misalignments, qty’s