TABLE 1 - FASTENER SIZE & ASSEMBLY TORQUE
D = DRY TORQUE - FT-LB (Nm)
L = LUBED TORQUE - FT-LB (Nm) (SAE 30 OIL OR ANTI-SEIZE COMPOUND)
ALL FASTENERS GRADE 2 OR BETTER
SIZE
ELEMENT TO SPIDER
TORQUE
DRUM TO HUB
TORQUE
4CB200
1/4-20NC
D 7 (10)
——
——
6CB200
3/8-16NC
D 15 (20)
3/8-16NC
D 15 (20)
8CB250
10CB300
1/2-13NC
D 38 (51)
12CB350
14CB400
16CB500
1/2-13NC
D 38 (51)
3/4-10NC
L 93 (126)
18CB500
20CB500
22CB500
24CB500
26CB525
5/8-11NC
D 77 (104)
28CB525
30CB525
32CB525
36CB525
3/4-10NC
L 93 (126)
40CB525
45CB525
1-8NC
L 163 (221)
Dual assemblies use the same values as listed above.
For element to element fasteners, use element to spider fastener sizes and torque value.
2.2
Mounting Considerations
2.2.1
The element must be protected from
contamination by oil, grease or excessive
amounts of dust.
Oil or grease contamination will re-
sult in a reduction of developed
clutch or brake torque. Either of
these conditions will result in clutch
or brake slippage and overheating.
All rotating equipment must be
guarded to comply with applicable
safety standards.
2.2.2
For clutch and brake applications, shaft align-
ment must be within the tolerances indicated
in the Alignment section of this manual.
Operation with shaft misalignment
exceeding the limits indicated in the
Alignment section of this manual will
result in accelerated wear of the ele-
ment components. Severe mislign-
ment will result in excessive
vibration and/or overheating when
disengaged due to dragging of the
friction shoes.
2.2.3
All mounting fasteners must be of the proper
size and grade, and torqued to the appropri-
ate value. See Table 1.
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