Question

write the necessities of teeth's provided on pinion and spur wheel ?

Answer 1

The teeth are usually provided on the pinion of the spur wheel, to drive the spur wheel.

Answer 2

Spur wheel arejustwheelslike any other wheels they facilitate movement of the spur

Teeths are therefore used to facilitate rotation of this spur wheels .

Teeths are some round balls that ca be lubricated with any lubricant this enhaces swift movement

Without the wheels the spur cannot rotate