EE 2 TN9
R Series & EE Series Single Row Deep Groove Ball Bearings
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Materials
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EE 2 TN9 Bearing Product Overview & Core Advantages
The EE 2 TN9 is a precision single row deep groove ball bearing designed for demanding applications requiring exceptional dimensional stability and operational reliability. Engineered with P6 tolerance class and manufactured from high-grade chrome steel, this bearing delivers superior performance in radial load applications. Its compact inch-series design (0.25" bore) offers a high limiting speed of 50,000 rpm, making it an ideal solution for high-speed machinery where precision and reliability are paramount.
EE 2 TN9 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| EE 2 | Optimized internal design with increased ball complement and reinforced shoulders for higher load capacity |
| TN9 | Glass fiber reinforced nylon cage, enabling smooth operation at high speeds and reduced friction |
| (No Seal Designation) | Open construction for applications where external sealing is provided or maximum speed is critical |
EE 2 TN9 Bearing Structural Features & Performance Benefits
High-Speed Capability: The TN9 nylon cage provides excellent dimensional stability at high rotational speeds while reducing centrifugal forces, contributing to the bearing's impressive 50,000 rpm limiting speed. The lightweight cage design minimizes vibration and noise during operation.
Precision Performance: Manufactured to P6 tolerance class with tight dimensional control on bore diameter (±0.00019") and outside diameter, ensuring precise fit and minimal runout in critical applications. The standard CN radial clearance provides optimal performance for most high-speed applications.
Enhanced Load Capacity: The EE 2 design incorporates more balls and optimized raceway geometry, resulting in a radial dynamic load rating of 632 lbf and static load rating of 243 lbf despite its compact 0.21874" width.
Material Excellence: Constructed from chrome steel for both rings and balls, providing excellent hardness, wear resistance, and durability across the operating temperature range of -30°C to 120°C.
EE 2 TN9 Bearing Typical Application Areas
- High-speed spindles in precision machining equipment
- Medical device motors and dental handpieces
- Small precision instruments and laboratory equipment
- Office automation equipment including high-speed scanners and printers
- Robotics and small precision gearboxes
- Aerospace instrumentation and control systems
