108 TN9
Miniature Self-Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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108 TN9 Bearing Product Overview & Core Advantages
The 108 TN9 is a double row angular contact ball bearing engineered for applications requiring high rigidity and compact design. This precision bearing is capable of supporting combined loads, including significant radial loads and moderate axial loads in both directions. Its metric dimensions (8mm bore, 22mm OD, 7mm width) make it ideal for space-constrained installations. The Nylon cage (TN9 designation) and factory-applied lubrication enable high-speed operation up to 40,000 rpm, while maintaining smooth performance across a wide temperature range (-30° to 110°C).
108 TN9 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 108 | Standard bore diameter code (8mm) | Standardized bearing dimensions for easy integration |
| TN9 | Glass fiber reinforced Nylon cage | Reduced friction, excellent high-speed performance, and quiet operation |
108 TN9 Bearing Structural Features & Performance Benefits
Double Row Design: The dual ball complement and optimized contact angles provide high rigidity and superior load distribution, making it ideal for applications with significant combined loads.
Enhanced Load Capacity: With a dynamic load rating of 596 lbf and static load rating of 126 lbf, this bearing delivers reliable performance under demanding operating conditions.
High-Speed Capability: The TN9 cage minimizes centrifugal forces and friction, while the factory-applied lubrication ensures stable operation at limiting speeds up to 40,000 rpm.
Precision Manufacturing: Manufactured from chrome steel with tight dimensional tolerances, ensuring consistent performance and long service life in precision applications.
108 TN9 Bearing Typical Application Areas
- Small Electric Motors: Spindle and rotor support in compact motor designs
- Precision Instruments: Measurement devices and optical equipment requiring high rigidity
- Office Automation Equipment: Printers, scanners, and copiers with high-speed rotating components
- Medical Devices: Small pumps and laboratory equipment where compact size and reliability are critical
- Robotics: Joint and actuator applications requiring combined load capacity in limited spaces
