Which key transmits power through frictional resistance only

Which key transmits power through frictional resistance only Correct Answer Saddle

Saddle key is a key that fits in the key way of the hub only. In this case there is no keyway provided on the shaft and friction between shaft, key and hub prevents relative motion between the shaft and the hub and power is transmitted by means of friction only.

Related Questions

A saddle key __________ power through frictional resistance only.