Drawn cup needle roller bearings have a deep-drawn thin-walled outer ring. Drawn cup needle roller bearings are typically used in applications where the housing bore cannot be used as a raceway for the needle roller and cage assembly, but a very compact and economical bearing arrangement is required. These bearings are mounted in the housing with an interference fit. This makes the design of the housing bore simple and economical since no shoulder or snap ring is required to axially position the bearing.
The hardened steel stamped outer ring forms a non-separable unit with the needle roller and cage assembly of these bearings.
Drawn cup needle roller bearings allow for miniaturization in applications that require less space.
Due to the large number of rollers, drawn outer ring needle roller bearings have high load-bearing capacity and stiffness.
