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Self Aligning Ball Bearings
This type of ball bearing is recommended when alignment of the shaft and housing is difficult and the shaft may flex. The outer ring has a spherical raceway and its centre of curvature coincides with that of the bearing; therefore, the axis of the inner ring, balls and cage can deflect to some extent around the bearing center. Pressed steel and polyamide cages are available. Since the contact angle is small, the axial load capacity is low. The permissible dynamic misalignment is approximately 0.07 to 0.12 radian (4 to 7 degrees) under normal loads.
Product Features and Benefits:
- High quality Steel - Ultra clean steel to extend bearing life by up to 80%.
- Advanced Grease Technology - NSK lubricants that can extend grease life and performance.
- High Grade Balls - Quiet and smooth operation even at high speed.
- Super Finished Raceways - Specially honed to minimise noise and improve lubricant distribution and life.
- Sealed versions available
Dynamic misalignment of up to 7 degree can be accomodated
Technical Tools
To help our customers, we have developed the following technical tools.
Technical Tools
NAVI-FOCUS - Bearing life, frequencies, fits and clearances
PART NUMBER SEARCH - Use base part number for best results
CAD Drawings
You can use our CAD service to obtain an image, which can be imported into your CAD package.
- For Bearings: PART Solutions
- For Linear Motion Components: Solid Components
Tec Web - NSK's Technical ESource Center
- BEARING SPECIFICATIONS: download a technical specification sheet detailing the bearings main features with further options to the calculation or drawing services.
- BEARING LIFE: on line calculation tool
- TROUBLESHOOTING GUIDE: common bearing failure modes are described, allowing you to make an assessment of your own bearing's condition and provide feedback on cause and effect.
- BEARING CAD DATA : link to NSK bearing CAD files
Technical journals - Motion & Control
Should you need more background information on both bearing performance and technical features combined with application knowledge, our technical paper search engine can help. This serivce includes technical articles published in NSK's Motion and Control Journal.
Linear Products Technical Information
Download technical information on NSK linear and roller guides, ball screws and Monocarrier actuators. Information includes selection guides, load ratings, accuracy, part numbering and more.
NSK Bearing Catalogs
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New Bearing Doctor (PDF - 7913.58 KB)
Troubleshooting guide
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Technical Report (PDF - 11020.28 KB)