Thin-Section Bearings

Nov. 15, 2002
There are three types of thin-section bearings: deep groove, four-point contact, and angular contact.

There are three types of thin-section bearings: deep groove, four-point contact, and angular contact. Compared with standard-section ball bearings, all three offer advantages in reduced space requirements and low cost. They are used primarily where shaft location is the major requirement.

As structural components, thin-section bearings behave differently than standard bearings because their bearing rings are quite flexible. Under load, the rings follow the imperfections of shaft and bores, so these components must be geometrically accurate.

The four-point contact bearing supports thrust loads in either direction and is much more effective in resisting moment loads than the deep-groove design.

Two other designs use an axial split in the outer ring to increase ball complement and radial capacity without sacrificing thrust capacity. One is a full-complement design, the other uses alternating full-size balls and spacer balls. The latter type also has high shoulders on the outer ring to provide integral shields for grease lubrication. Both types are held together with wire bands after assembly.

Sponsored Recommendations

June 27, 2025
Ensure workplace safety and compliance with our comprehensive Lockout/Tagout (LOTO) Safety Training course. Learn critical procedures to prevent serious injuries.
June 27, 2025
Join our expert webinar to discover essential safety control measures and best practices for engineering a truly safe and compliant industrial environment.
June 25, 2025
An innovative aircraft with electric drives combines the best of both worlds. The cross between drone and helicopter could mean significantly faster and more efficient air emergency...
June 25, 2025
Effective when other materials fail, ceramics are particularly suitable for applications requiring wear and chemical resistance, sliding characteristics or biocompatibility. Discover...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!