129TN
Miniature Self-Aligning Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
129TN Bearing Product Overview & Core Advantages
The 129TN is a double row angular contact ball bearing designed for demanding applications requiring high precision and reliability. This metric bearing features an open design and is pre-lubricated for immediate use. Its double row construction provides superior rigidity and enables it to accommodate significant combined loads, including radial and bidirectional axial loads, within a compact bearing size of 9mm bore and 8mm width. The use of a nylon cage contributes to smooth operation and is suitable for high-speed applications up to 38,000 rpm.
129TN Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Significance |
|---|---|
| 129 | Basic bearing designation indicating the specific size series and bore diameter. |
| TN | Indicates a nylon (polyamide) cage, which is lightweight, promotes quiet running, and is ideal for high-speed operation. |
Note: This model is an open type bearing (no seal suffix) and comes lubricated from the factory.
129TN Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball design provides a much stiffer support structure compared to single row bearings, effectively handling combined radial and axial loads with a dynamic load rating of 878 lbf.
- High-Speed Performance: The lightweight TN nylon cage reduces centrifugal forces, minimizes friction, and allows for a high limiting speed of 38,000 rpm.
- Precision & Reliability: Manufactured from chrome steel for both rings and balls, ensuring high durability and consistent performance. The standard CN radial internal clearance is suitable for a wide range of applications.
- Ready-to-Use: The bearing is pre-lubricated, simplifying installation and providing immediate operation within a temperature range of -30°C to 110°C.
129TN Bearing Typical Application Areas
The 129TN is engineered for high-performance applications across various industries, including:
- Precision Spindles in small motors and dental handpieces
- High-Speed Rotational Units in automation and robotics
- Pumps and Compressors
- Office Automation Equipment and precision instruments
