NSK, Motion & Control
Self Aligning Ball Bearings
NSK recommends Self-Aligning Ball Bearings when the alignment of the shaft and housing is problematic and the shaft may bend. 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 centre. The axial load capacity is low since the contact angle is small. Under normal loads, the permissible dynamic misalignment is approximately 0.07 to 0.12 radian (4 to 7 degrees).
Product Features and Benefits:
- High quality Steel - Ultra clean steel to extend bearing life by up to 80%.
- Pressed steel and polyamide cages available.
- 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.
To support you, NSK has developed the following technical tools:
CAD Drawings
You can use our CAD service to obtain an image, which can be imported into your CAD package.
- For Linear Components & Bearings: solidcomponents.com
- For Bearings: cadenas
Bearings - Calculation Tools
NSK Portal NAVI-FOCUS supports you with following bearing calculation tools:
- Bearing life (NSK ABLE/ ISO 281)
- Bearing Fits and Clearances
- Bearing frequencies
- Load:
Required minimum load for Cylindrical Roller Bearings
Maximum permissible axial loads for Cylindrical Roller Bearings - Frictional moment, reference and thermal permissible speed:
Frictional moment
Reference speed (ISO 15312:2003) and Thermal permissible speed - Lubrication:
Grease replenishing interval
Reference kinematic viscosity
Linear Components - Calculation tools
NSK Megatorque Motor Selection Tool supports you with following calculations:
- Calculation of load moment of inertia
- Motor selection by the shortest positioning
- Motor selection from movement pattern
NSK Linear Guides Calculation Tool
- Reference tool to simplify the life and load calculation of NSK Linear Guides.
Technical website
Our Technical Website offers tools and information to help you identify the right product:
- 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.
- The ABC of Bearings: all about types and features of Rolling Bearings, bearing selection procedure, selection of bearing type and arrangement etc.
- Bearing Specifications: download a technical specification sheet detailing the bearings main features with further options to the calculation or drawing services.
- Technical Journals - Motion & Control: background information on both bearing performance and technical features, combined with application knowledge.
Technical journal - Latest Edition
Self-Aligning CATALOGUE
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Rolling Bearings - Complete (PDF - 5921.19 KB)
Catalogue with easy to use "section" selection
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Bearing Replacement Guide (PDF - 5337.89 KB)
Catalogue with easy to use "section" selection