A ____ type of motor shaft is found on motors with 5/8" and larger shaft diameters.Its purpose is to prevent the shaft from slipping on the coupling device with the mechanical load.

A) flat
B) key
C) round
D) threaded

Mechanical Load

The force or stresses applied to a system or component, usually resulting from mechanical devices or systems.

Coupling Device

A mechanical or electromagnetic component used to connect two shafts together at their ends for the purpose of transmitting power.