Ceramic Hybrid Bearings
Ceramic Hybrid Bearings have Steel races and Ceramic Balls. Ceramic Balls are suitable for applications where high loads, high speeds and extreme temperatures are factors. Long life and the need for minimal lubrication make this material appropriate for extreme applications. Ceramic is non-porous, non-magnetic, non corrosive and lighter than steel. In ball form, ceramic balls are also harder than steel and because ceramic balls are non-porous they are virtually frictionless and capable of spinning faster than steel balls.
Ceramic Balls are usually made of 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.
Ceramic Hybrid Bearing Benefits
- High loads, high speeds and extreme temperatures are factors
- Increased bearing life and decreased down time
- Minimal need for lubrication
- No cold welding between ceramic balls and races
- Multi-purpose use in variety of machines and different production lines
- High efficiency, low weight and small size
Ceramic Hybrid Bearing Applications
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.
Ceramic Hybrid Bearing Styles and Sizes
Ceramic hybrid bearings are available in variety of sizes and styles:
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Angular contact bearings are designed such that there is an angle between the races and the balls when the bearing is in operation. An axial load passes in a straight line through the bearing, whereas a radial load takes an oblique path that tends to want to separate the races axially. So the angle of contact on the inner race is the same as that o ... |
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There are two basic types of dental ball bearings depending on the type of work that the tool is designed for. The first type is the Radial Bearing and the second type is the Thrust Bearing. Radial Bearings are designed for working in deep grooves and for angled dental surfaces. Radial Bearings have an inner ring, an outer ring, a series of balls a ... |
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Insert bearings and wide inner ring bearings are used for mounting on shafts without the need for shoulders or adapters. The bearing is locked in place through setscrews or a locking collar. UC Style Insert Bearings have an inner ring that extends on both sides of the bearing and SB Style Insert Bearings extend on one side. Both designs however are ... |
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The purpose of a radial bearing is to reduce rotational friction and support loads. This is achieved by using two races to hold the balls and to spread the load through the balls. As the bearing race rotates it causes the balls to rotate. The ball provides for substantially less rolling resistance and coefficient of friction than if two flat surfac ... |
Ceramic Bearing Articles & Resources
Full Ceramic Bearings Play Hardball
Ceramic Bearing Properties & Characteristics
Ceramic Bearing vs. Steel Bearing Material Comparison Chart
Boca Bearings Engineering Guide