Technical Information

Technical Information Hotline: 800-352-0418

Specifications For Catalog-Series
Collars And Couplings

Material
Steel	High Strength,
Steel	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:

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

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