129 TN9
Miniature Self-Aligning Ball Bearings
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Part No.
Part No.
129 TN9
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.022 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
9 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
26 mm
Outside diameter tolerance
-0.009mm to 0
Width
8 mm
Width tolerance
-0.12mm to 0
Chamfer dimension
0.3 mm
Inner Ring Dimensions
Shoulder diameter inner ring
14.8 mm
Outer Ring Dimensions
Shoulder diameter outer ring
20.4 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
878 lbf
Radial static load rating
183 lbf
Limiting speed
38 X 1000 rpm
Lubrication
Lubricated
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Nylon
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 7.49
/ each
In Stock
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129 TN9 Bearing Product Overview & Core Advantages
The 129 TN9 is a metric double row angular contact ball bearing engineered for applications demanding high precision and reliability. This open-type bearing excels at simultaneously handling significant radial loads and moderate axial loads in both directions. Its compact design, featuring an 8 mm width, makes it ideal for space-constrained assemblies. The use of a Nylon cage (TN9) contributes to smooth operation at high speeds, while the pre-lubrication ensures immediate readiness for service, offering a robust solution for various industrial applications.
129 TN9 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 129 | Basic bearing designation, defining the core dimensions (9mm bore, 26mm OD). |
| TN9 | Indicates a glass fiber reinforced Nylon 66 cage. This lightweight cage is ideal for high-speed operation, reduces friction, and is suitable for a wide temperature range. |
129 TN9 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing construction provides superior rigidity and enables the bearing to support substantial combined loads (radial and bidirectional axial loads), ensuring stable performance under demanding conditions.
- Optimized High-Speed Performance: The TN9 Nylon cage is a key factor in achieving the high limiting speed of 38,000 rpm. Its lightweight nature minimizes centrifugal forces, reduces friction, and allows for quieter, more efficient operation.
- Precision & Reliability: Manufactured from Chrome Steel for both rings and balls, this bearing offers high durability and wear resistance. The tight dimensional tolerances guarantee precise running accuracy, which is critical for precision applications.
- Ready-to-Use Convenience: The bearing comes pre-lubricated, facilitating easy installation and providing immediate protection against wear during the initial run-in period.
129 TN9 Bearing Typical Application Areas
This double row angular contact ball bearing is widely used in applications requiring compact design, high-speed capability, and reliable performance under combined loads. Key sectors include:
- Electric Motors and Small Spindles
- Precision Gearboxes
- Office Automation Equipment (e.g., printers, scanners)
- Medical and Dental Handpieces
- Small Pumps and Compressors
