Engineered to the highest standards, the RNNU4940B/SPW33 is a Double Row Super Precision Cylindrical Roller Bearing from SKF, specifically engineered to meet the demanding needs of high-speed industrial applications. This bearing has a modified internal design, a machined brass cage, and no inner ring. Whether you operate in the aerospace, robotics, or precision machinery industry, the RNNU4940 B/SPW33 is your go-to solution for ensuring optimal functionality and longevity. The dimensions of this RNNU4940B/SPW33 bearing are 225x280x80mm.

Key Features

Superior Precision

The bearing boasts dimensional accuracy at ISO tolerance class 5 and running accuracy at ISO tolerance class 4. Manufactured with these tight tolerances, the RNNU4940B/SPW33 bearing by SKF ensures exceptional accuracy and minimal operational deviation even in difficult operating conditions.

High-Speed Capability

The RNNU4940 B/SPW33 super precision bearing is designed to perform at high speeds without compromising stability. This makes it ideal for applications that demand rapid rotation.

Optimised Load Distribution and Carrying

The cylindrical roller design of the RNNU4940B/SPW33 bearing ensures even load distribution and carries heavy radial loads while maintaining a low cross-sectional height and low friction. This helps to enhance performance and ultimately extend the bearing’s lifespan.