Technical Information


Technical Information Hotline: 800-352-0418


>> Shaft Collars & Rigid Coupings


>> Keyless Locking Assemblies


>> Bearing Selection Factors



Specifications For Catalog-Series
Collars And Couplings


Material
Steel High Strength,
Low Carbon Steel
Stainless Steel  Type 303 Austenitic or Type 316 Austenitic
Aluminum Type 6061 – T651 or equivalent
Nylon  Delrin
Finish
Steel Black Oxide, Zinc Plated or Yellow Zinc
Stainless Steel Plain
Aluminum Plain
Screws
Steel, Set  Hex Socket, Cup Point, 3A Thread, ASTM F912
Steel, Cap Hex Socket, 3A Thread, ASTM A574
Stainless Steel, Set Hex Socket, Cup Point, 3A Thread, ASTM F880
Stainless Steel, Cap Hex Socket, 3A Thread, ASTM F837
Tolerances
Bore Diameter As specified on individual catalog pages
Width, Collars + 0.005 inch
Length, Couplings  + 0.015 inch

Steel screws are supplied with steel and aluminum collars and couplings.
Stainless steel screws are supplied with stainless steel collars and couplings and all nylon collars.



Axial Load Capacity For Catalog-Series
Collars And Couplings


Collar resistance to axial motion on the shaft is primarily a function of screw size. The tables indicate maximum static load that a collar will support without slippage. It is based on screws at full recommended seating torque and, for set screw collars, shaft hardness not exceeding Rockwell C35.

Load capability is reduced with stainless steel screws because of lower seating torque. Load capability may be nearly doubled with set screw collars by adding a second set screw. Threaded collars and shafts have much greater axial load capability.

The tables also indicate “typical” maximum values and are not a guarantee under all conditions. Values are only a guide and must be evaluated by customers based on individual application. Climax Metal Products Company does not intend these values to serve as a warranty.

Note: The Axial Load data presented is based on the median bore size for a particular screw size.


Set Screw Collars
Socket Set Screw Size Seating Torque Alloy
(in-lb)
Maximum Alloy Axial Load (lb) Seating Torque Stainless (in-lb) Stainless Axial Load (lb)
10-32 10 250 7 135
8-32 20 375 15 200
10-32 35 550 25 300
1/4 - 20 90 950 70 550
5/16 - 18 170 1500 135 900
5/16 - 24 170 1500 135 1000
3/8 - 16 300 2200 235 1200
1/2 - 13 625 3000 500 1200
Set Screw Collars
Socket Head Cap Screw Size Seating Torque Alloy
(in-lb)
Maximum Alloy Axial Load (lb) Seating Torque Stainless (in-lb) Maximum Stainless Axial Load (lb)
4-40 15 200 8 150
6-32 25 500 15 200
8-32 50 950 30 600
10-32 75 1750 45 800
1/4-28 175 2600 115 1400
5/16-24 340 6200 200 2800
3/8-24 600 7200 350 3800

T = Torque required to rotate shaft in coupling (in-lb)
F = Axial load based on a given screw size (lb)
R = Bore radius (inch) T = (F x 2) x R

Disclaimer: The Axial Load and Torque data presented are based on limited test results and are not a guarantee of minimum or maximum values under all conditions



Seating Torque For Catalog-Series
Collars And Couplings


Socket Head Cap Screws
Screw Size Seating Torque Seating Torque 
(Inch) Alloy (in-lb)  Stainless (in-lb) 
4-40 15 8
6-32 25 15
8-32 50 30
10-32 75 45
1/4-28 175 115
5/16-24 340 200
3/8-24 600 350
Screw Size Seating Torque Seating Torque 
(Metric) Alloy (in-lb) Stainless (in-lb)
M 3  18 9
M 4 41 22
M 5 85 45
M 6 145 76
M 8 345 183
M 10 690 366
Socket Set Screws
Screw Size Seating Torque Seating Torque 
(Inch) Alloy (in-lb) Stainless (in-lb)
6-32 10 7
8-32 20 15
10-32 35 25
1/4-20 90 70
5/16-18 170 135
5/16-24 170 135
3/8-16 300 235
1/2-13 625 500
Screw Size Seating Torque Seating Torque 
(Metric) Alloy (in-lb) Stainless (in-lb)
M 2 1.75 0.875
M 3 8 3.5
M 4 18 12
M 5 41 24
M 6 68 44
M 8 157 105
M 10 310 210


Fastener Key Sizes For Catalog-Series Collars And Couplings


Fastener Key Sizes - Inch
Set Screw  Hex Key  SHCS Hex Key 
Thread Size Size (in)  Thread Size Size (in)
2-56 0.035 4-40 3/32
4-40 0.050 6-32 7/64
6-32 1/16 8-32 9/64
8-32 5/64 10-32 5/32
10-32 3/32 1/4-28 3/16
1/4-20 1/8  5/16-24 1/4
5/16-18 5/32 3/8-24 5/16 
3/8-16 3/16 1/2-13 3/8 
1/2-13 1/4     
Fastener Key Sizes - Metric
Set Screw Hex Key SHCS Hex Key
Thread Size Size (mm) Thread Size Size (mm)
M 2 0.9 M 3 2.5
M 3 1.5 M 4 3.0
M 4 2.0 M 5 4.0
M 5 2.5 M 6 5.0
M 6 3.0 M 8 6.0
M 8 4.0 M 10 8.0
M 10 5.0    


Keyways For Catalog-Series
Collars And Couplings


Keyways - Inch
Inch Key Size
Bore  Width x Depth
3/8 3/32 X 3/32
 1/2 1/8 X 1/8
5/8 to 7/8 3/16 X 3/16
1 to 1-1/4 1/4 X 1/4
1 3/8 5/16 X 5/16
1 1/2 3/8 X 3/8
Keyways  - Metric
Metric Key Size
Bore  Width x Depth
7 to 8 2 X 2
9 to 10 3 X 3
11 to 12 4 X 4
13 to 17 5 X 5
18 to 22 6 X 6
23 to 30 8 X 7
31 to 38 10 X 8 
39 to 44 12 X 8 
45 to 50 14 X 9 

Warranty:
Climax Metal Products Company warrants that all parts listed in this catalog meet the size and materials specifications within. Any non-conforming product will be replaced or the purchase price refunded at the Company’s option. The user is responsible for determining the suitability of a part for a particular application and performance. No employee of Climax Metal Products Company or its agents has the authority to represent these products for a particular application or use. Climax’s liability is limited to the price of the part and neither Climax nor the seller’s liability shall exceed the price of the part.

Disclaimer:
The Axial Load and Torque data presented are based on limited test results and are not a guarantee of minimum or maximum values under all conditions.


 


SPECIFICATIONS FOR CATALOG-Series
KEYLESS LOCKING ASSEMBLIES

Technical Information Hotline: 800-352-0418

 

   
Calculation of minimum hub diameter DM

By installing Climax locking assemblies surface pressures Ps and Ph are exerted along the shaft and hub mating surfaces. The effect of this pressure must be considered in choosing appropriate hub material and minimum hub thickness. The information below
is provided to assist you in calculating the minimum hub diameter DM for following three application types. Factor C is based on application type.

For minimum hub diameter DM calculation the following
formula must be applied:
image
image
 
Common Material Yield Strength (psi)
1045 Annealed - 50000 4150   Hardened - 120000
Ductile Iron, Ferrite - 40000   Inconel 600 - 35000
Aluminum 356   Cast - 22000
 

TOLERANCE CHARTS FOR CATALOG-Series
KEYLESS LOCKING ASSEMBLIES

ØD - Hub Diameter (inch)
Over   0.118 0.236 0.394 0.709 1.181 1.969 3.150 4.724
Including   0.236 0.394 0.709 1.181 1.969 3.150 4.724 7.087
ØD - Hub Diameter (mm)
Over   3 6 10 18 30 50 80 120
Including   6 10 18 30 50 80 120 180
H6 [-0.0] inch +0.0003 +0.0004 +0.0004 +0.0005 +0.001 +0.001 +0.001 +0.001
mm +0.01 +0.01 +0.01 +0.01 +0.02 +0.02 +0.02 +0.03
H7 [-0.0] inch +0.001 +0.001 +0.001 +0.001 +0.001 +0.001 +0.001 +0.002
mm +0.01 +0.02 +0.02 +0.02 +0.03 +0.03 +0.04 +0.04
H8 [-0.0] inch +0.001 +0.001 +0.001 +0.001 +0.002 +0.002 +0.002 +0.002
mm +0.02 +0.02 +0.03 +0.03 +0.04 +0.05 +0.05 +0.06
H11 [-0.0] inch +0.003 +0.004 +0.004 +0.005 +0.006 +0.007 +0.009 +0.010
mm +0.08 +0.09 +0.11 +0.13 +0.16 +0.19 +0.22 +0.25
 

Ød - Shaft Diameter  (inch)

Over   0.118 0.236 0.394 0.709 1.181 1.969 3.150
Including   0.236 0.394 0.709 1.181 1.969 3.150 4.724
Ød - Shaft Diameter  (mm)
Over   3 6 10 18 30 50 80
Including   6 10 18 30 50 80 120
f7 inch -0.0004 -0.0005 -0.0006 -0.0008 -0.0010 -0.0012 -0.0014
  -0.001 -0.001 -0.001 -0.002 -0.002 -0.002 -0.003
mm -0.01 -0.01 -0.02 -0.02 -0.03 -0.03 -0.04
  -0.02 -0.03 -0.03 -0.04 -0.05 -0.06 -0.07
g6 inch -0.0002 -0.0002 -0.0002 -0.0003 -0.0004 -0.0004 -0.0005
  -0.001 -0.001 -0.001 -0.001 -0.001 -0.001 -0.001
mm -0.004 -0.01 -0.01 -0.01 -0.01 -0.01 -0.01
  -0.01 -0.01 -0.02 -0.02 -0.03 -0.03 -0.03
 
WARRANTY:
Climax Metal Products Company warrants that all parts listed in this catalog meet the size and materials specifications within. Any non-conforming product will be replaced or the purchase price refunded at the Company’s option. The user is responsible for determining the suitability of a part for a particular application and performance. No employee of Climax Metal Products Company or its agents has the authority to represent these products for a particular application or use. Climax’s liability is limited to the price of the part and neither Climax nor the seller’s liability shall exceed
the price of the part.

DISCLAIMER:
The Axial Load and Torque data presented are based on limited test results and are not a guarantee of minimum or maximum values under all conditions.




Bearing Selection Factors


We recommend that testing be done in the actual operating environment to determine if a certain bearing unit is suitable for the application. Many variations can occur such as temperature, RPM, type of shafting, shock loads and support structures.

Ball Bearing Units
Note that all ball bearing units are pre-lubricated and made to ABEC-1 tolerances. The wide inner race locks securely to the shaft with set screws. A neoprene seal keeps contaminants out and allows use in wet or dry environments. Tolerates temperature range -30° to 200° F.

Load ratings for ball bearing units are based on the ball bearing insert in each unit. The dynamic load rating capacity (Lbs.) is the maximum constant radial load that a bearing can support for one million revolutions @ 33 1/3 RPM for 500 hours. Static load capacity (Lbs.) is the maximum static load (non-rotating shaft) that a bearing can support without causing permanent deformation.

Maximum speed ratings are based on light loads and reflective of bore sizes:
1/2”=6000 RPM, 5/8”=5000 RPM, 3/4”=4500 RPM, and 1”=3500 RPM

UHMW-PE and Bronze Sleeve Bearing Units
Sleeve bearings do not have moving parts and assure a low friction, smooth motion between two solid surfaces. Load capacities are expressed as a “PV” factor. To identify the “PV” factor, multiply “P” (maximum pressure in PSI on the bearing surface) x “V” (maximum sliding velocity in Surface Feet Per Minute on the shaft). The PV factor should not exceed rated max PV.

To Calculate, use the following formula:
P=Bearing Load / Bearing Diameter x Bearing Length
V=Shaft Diameter x Shaft RPM x 0.262*
*0.262” is the constant used for sleeve bearings