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

How BASF turns data into savings

May 7, 2024
BASF continuously monitors the health of 63 substation assets — with Schneider’s Service Bureau and EcoStruxure™ Asset Advisor. ►Learn More: https://www.schn...

Agile design thinking: A key to operation-level digital transformation acceleration

May 7, 2024
Digital transformation, aided by agile design thinking, can reduce obstacles to change. Learn about 3 steps that can guide success.

Can new digital medium voltage circuit breakers help facilities reduce their carbon footprint?

May 7, 2024
Find out how facility managers can easily monitor energy usage to create a sustainable, decarbonized environment using digital MV circuit breakers.

The Digital Thread: End-to-End Data-Driven Manufacturing

May 1, 2024
Creating a Digital Thread by harnessing end-to-end manufacturing data is providing unprecedented opportunities to create efficiencies in the world of manufacturing.

Voice your opinion!

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