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Customer
Service Hotline: 800.542.6552
FAX: 800.860.5553
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Technical Information
Technical Information Hotline: 800-352-0418
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Shaft
Collars & Rigid Coupings |
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Keyless
Locking Assemblies |
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SPECIFICATIONS FOR CATALOG-Series
COLLARS AND COUPLINGS
Technical Information Hotline:
800-352-0418
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Material |
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Steel |
High Strength, |
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Low Carbon Steel |
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Stainless Steel |
Type 303 Austenitic or Type
316 Austenitic |
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Aluminum |
Type 6061 – T651 or
equivalent |
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Nylon |
Delrin |
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Screws |
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Steel, Set |
Hex Socket, Cup Point, 3A Thread, ASTM F912 |
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Steel, Cap |
Hex Socket, 3A Thread, ASTM A574 |
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Stainless Steel, Set |
Hex Socket, Cup Point, 3A Thread, ASTM F880 |
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Stainless Steel, Cap |
Hex Socket, 3A Thread, ASTM F837 |
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Finish |
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Steel |
Black Oxide, Zinc
Plated or Yellow Zinc |
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Stainless Steel |
Plain |
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Aluminum |
Plain |
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Tolerances |
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Bore Diameter |
As specified on individual catalog pages |
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Width, Collars |
+ 0.005 inch |
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Length, Couplings |
+ 0.015 inch |
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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. |
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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. |
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Set Screw
Collars |
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Maximum |
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Socket |
Seating |
Maximum |
Seating |
Stainless |
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Set |
Torque |
Alloy |
Torque |
Axial |
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Screw |
Alloy |
Axial Load |
Stainless |
Load |
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Size |
(in-lb) |
(lb) |
(in-lb) |
(lb) |
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10-32 |
10 |
250 |
7 |
135 |
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8-32 |
20 |
375 |
15 |
200 |
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10-32 |
35 |
550 |
25 |
300 |
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1/4 - 20 |
90 |
950 |
70 |
550 |
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5/16 - 18 |
170 |
1500 |
135 |
900 |
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5/16 - 24 |
170 |
1500 |
135 |
1000 |
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3/8 - 16 |
300 |
2200 |
235 |
1200 |
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1/2 - 13 |
625 |
3000 |
500 |
1200 |
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Clamping
Collars |
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Socket |
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Maximum |
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Head |
Seating |
Maximum |
Seating |
Stainless |
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Cap |
Torque |
Alloy |
Torque |
Axial |
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Screw |
Alloy |
Axial Load |
Stainless |
Load |
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Size |
(in-lb) |
(lb) |
(in-lb) |
(lb) |
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4-40 |
15 |
200 |
8 |
150 |
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6-32 |
25 |
500 |
15 |
200 |
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8-32 |
50 |
950 |
30 |
600 |
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10-32 |
75 |
1750 |
45 |
800 |
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1/4-28 |
175 |
2600 |
115 |
1400 |
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5/16-24 |
340 |
6200 |
200 |
2800 |
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3/8-24 |
600 |
7200 |
350 |
3800 |
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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 |
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SEATING
TORQUE FOR CATALOG-Series
COLLARS AND COUPLINGS |
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Socket Head Cap Screws |
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Screw Size |
Seating Torque |
Seating Torque |
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(Inch) |
Alloy (in-lb) |
Stainless (in-lb) |
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4-40 |
15 |
8 |
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6-32 |
25 |
15 |
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8-32 |
50 |
30 |
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10-32 |
75 |
45 |
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1/4-28 |
175 |
115 |
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5/16-24 |
340 |
200 |
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3/8-24 |
600 |
350 |
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Screw Size |
Seating Torque |
Seating Torque |
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(Metric) |
Alloy (in-lb) |
Stainless (in-lb) |
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M 3 |
18 |
9 |
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M 4 |
41 |
22 |
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M 5 |
85 |
45 |
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M 6 |
145 |
76 |
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M 8 |
345 |
183 |
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M 10 |
690 |
366 |
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Socket Set Screws |
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Screw Size |
Seating Torque |
Seating Torque |
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(Inch) |
Alloy (in-lb) |
Stainless (in-lb) |
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6-32 |
10 |
7 |
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8-32 |
20 |
15 |
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10-32 |
35 |
25 |
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1/4-20 |
90 |
70 |
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5/16-18 |
170 |
135 |
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5/16-24 |
170 |
135 |
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3/8-16 |
300 |
235 |
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1/2-13 |
625 |
500 |
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Screw Size |
Seating Torque |
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