Ceramic Bearings
MMB can offer full ceramic and ceramic hybrid options for most ball bearing sizes. Hybrid options consist of ceramic balls with metal retainers and raceways. Ceramic hybrid bearings are widely used in electric motors, aerospace applications, performance racing vehicles, laboratory equipment, under water applications and more. Any application that requires higher speeds, lower friction and longer life are ideal for ceramic hybrid bearings. Full Ceramic Bearings have races and balls that are made entirely of ceramic material and are superior to common steel bearings in many ways. Ceramic is the perfect material for any application seeking to achieve higher RPM’s, reduce overall weight or for extremely harsh environments where high temperatures and corrosive substances are present.
Ceramic Composition
Full Ceramic Bearings are usually made of the following materials:
- Silicon Nitride (SiN4)
- Alumina Oxide (Al2O3)
- Zirconia Oxide (ZrO2)
- Silicon Carbide (SiC)
Because ceramic is a glass-like surface it has an extremely low coefficient of friction and is ideal for applications seeking to reduce friction. Ceramic balls require less lubrication and have a greater hardness than steel balls which will contribute to increased bearing life. Thermal properties are better than steel balls resulting in less heat generation at high speeds.
Over 100 years of combined experience
About MMB Bearings
MMB Bearings has grown from a small supplier of precision miniature bearings, to one of the nation’s largest stocking distributors and suppliers of high-quality ball and roller bearings. Our bearings are stocked in a climate controlled warehouse to ensure our inventory maintains high quality standards. We take great pride in the knowledge and service we provide. You'll find precisely what you need from one source with ready-to-ship inventory in large quantities of domestic and imported ball, roller, needle and rod end bearings.