BK-Drawn cup needle roller bearings

Drawn cup needle bearings are ideal for housing bores that are of low rigidity like cast iron, aluminum or plastic. Mechanical efficiency is improved with needle roller bearings because the rotating radius and torque is small. Due to the small bearing volume and weight, the moment of inertia of the bearing is minimized when put in motion, therefore requiring lower torque.

The outer ring is made by sintered metal. There are two kinds of cages: metal and plastic. The needle roller is made of bearing steel and its movement is guided by the cage.