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Size Range
15mm - 120mm bore
Advanced Fafnir hybrid ball bearings combine ceramic rolling elements with superfinished steel rings to run faster, cooler and longer in high-speed machine tool spindles and other demanding applications. The hybrid combination of materials provides superior ceramic performance at a cost-effective price.
Super Precision ceramic hybrid bearings deliver outstanding service life and operating characteristics at high spindle speeds. The advanced design and materials help improve rigidity while reducing noise, vibration and operating temperature.
Fafnir ceramic hybrid bearings help machine tool spindles achieve maximum accuracy at speeds greater than 2 million DN under air/oil lubrication, with reduced skidding, wear and heat generation. Speeds greater than 1 million DN are possible with grease lubrication.
The lightweight silicon nitride balls have a superfine surface finish and high hardness (Rc78) that can help to extend service life up to 5 times that of standard steel bearings. Low friction characteristics enhance operation under minimal lubrication conditions and increase both life and speed capabilities of lubricants.
The ceramic’s greater modulus of elasticity significantly increases rigidity over steel bearings. Greater bearing rigidity improves spindle stiffness and accuracy for precise machining. Low thermal expansion helps maintain consistent bearing preload and stiffness at high speeds.
ABEC 9 ultra-precision geometry and micron-coded bores and outside diameters add to superior system performance. Each bearing is 100% functionally tested per ABMA Standard 13. This assures consistent quality and smooth, low noise.
Typical Applications
- High-speed machining and grinding spindles
- High-speed milling machines
- Precision instruments
- Pumps and compressors
- Biotechnology equipment
- Aircraft generators
Expanded Options
- Custom preloads
- 15° or 25° contact angles
- ISO/ABMA 02, 10, 19
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