Q. Crowning of pulleys is generally done :

A
to reduce the belt friction
B
to dissipate the heat generated due to friction
C
to perfect the belt joint so that it may not break while running
D
to prevent the belt from running of the pulley
Solution:
  • The purpose of a crowned pulley (or tapered pulley) is to assist with belt tracking.
  • In most operating conditions, a belt will follow the path of highest tension.
  • So, it makes sense to have the diameter of the pulley larger in the center than at the edges.
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