Precision bearings get ceramic rollers

Feb. 5, 2004
MRC Bearings now offers precision-finished, silicon-nitride rollers separately, or installed in its line of aerospace hybrid roller bearings.

MRC Bearings, a div. of SKF, Jamestown, N.Y. (www.mrcbearings.com), now offers precision-finished, silicon-nitride rollers separately, or installed in its line of aerospace hybrid roller bearings. MRC uses Cerama SN-101C silicon nitride ceramic roller blanks from Saint-Gobain Ceramics, East Granbury, Conn. (www.cerbec.com).

Hybrid roller bearings (silicon-nitride roller in metal races) are said to last longer and run faster than their all-steel counterparts. Silicon nitride has just 40% the density of steel, which lowers rotational inertia and centrifugal force. Lower friction and less wear from smooth, hard ceramic surfaces let hybrid bearings run cooler with less lubricant. Applications for ceramic rollers include precision bearings for aerospace, machine tools, and racing.

--Lawrence Kren

Sponsored Recommendations

June 6, 2025
In the rapidly evolving landscape of industrial manufacturing, reliability, productivity, and worker safety take precedence. However, traditional connectivity approaches often...
June 6, 2025
Amidst the rapid evolution of electronics manufacturing, reliability, productivity, and worker safety remain paramount concerns. Yet, traditional connectivity methods often falter...
June 6, 2025
While many within the industrial manufacturing sector grasp the importance of smart manufacturing for optimizing processes, boosting productivity, and future-proofing operations...
June 6, 2025
For electronics manufacturers grappling with formidable challenges, navigating the path to success requires adapting to the dynamic landscape of the industry. How can electronics...

Voice your opinion!

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