Question

the angular deflection can affect non-self aligning bearings and cause vibration

true or false?

a concern the must be considered when designing shafts and connecting elements is the stress connection

true or false?

a shaft must be long in rotation

true or false ?

Answer 1

1.The angular deflection can affect non-self aligning bearings and cause vibration. True

Answer: shaft angular deflection at rolling element bearings should not exceed 0.04 degree, with the exception being self-aligning rolling element bearings.the angular deflection can affect non-self aligning bearings and cause vibrations.it is for only self aligning bearings.

2.Aconcern the must be considered when designing shafts and connecting elements is the stress connection True

Answer: We have consider while designing shafts and its connecting elements the stress are find to correct the factor of safety and for its life.

3.A shaft must be long in rotation. False.

Answer: If a shaft must be long in rotation it cause vibration due to rotation. the vibration can cause the decrease in life of the shaft and also reducing the transmission of power.