Theory of Machine
Creep in belt drive is due to

Uneven extensions and contractions due to varying tension
Material of the pulley
Larger size of the driver pulley
Material of the belt

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The displacement of the reciprocating roller follower, when it has contact with the straight flanks of the tangent cam, is given by (where r₁ = Minimum radius of the cam, r₂ = Radius of the roller follower, and θ = Angle turned by the cam from the beginning of the follower displacement)

(r₁ - r₂) [(1 - cosθ)/cosθ]
(r₁ + r₂) (1 + cosθ)
(r₁ - r₂) (1 - cosθ)
(r₁ + r₂) [(1 - cosθ)/cosθ]

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
Crowning on pulleys helps

Increase belt and pulley life
In increasing velocity ratio
For automatic adjustment of belt position so that belt runs centrally
In decreasing the slip of the belt

ANSWER DOWNLOAD EXAMIANS APP