SSC JE Mechanical Engineering 2018 Set 1 Paper

Question : 109 of 200

Marks: +1, -0

Which following equation represents the frictional torque transmitted in a conical pivot bearing with radius R of shaft and

α

as the semi-angle of the cone?

Solution:

For conical pivot bearing frictional torque

T=2/3×µ W R \cosec α

[considering uniform pressure theory]

T=1/2×µ W R \cosec α

[considering uniform wear theory]

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