1203TN
1200 Series 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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1203TN Bearing Product Overview & Core Advantages
The 1203TN is a double row angular contact ball bearing designed for applications requiring high rigidity and the ability to handle combined loads. Its compact design integrates two rows of balls, enabling it to simultaneously support significant radial loads and bidirectional axial loads. Manufactured with precision-ground chrome steel components and featuring a lightweight nylon cage, this bearing is engineered for smooth operation in high-speed applications, making it an ideal choice for demanding industrial environments where reliability and precision are paramount.
1203TN Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 12 | Series designation, indicating a specific cross-section and performance profile. |
| 03 | Bore diameter code, corresponding to a 17 mm bore. |
| TN | Indicates a nylon (polyamide) cage. This cage material contributes to lower friction, quieter operation, and is suitable for high-speed applications. |
1203TN Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row construction provides superior rigidity and stability compared to single row bearings, effectively handling combined radial and axial loads from both directions.
- Optimized for High Speeds: The lightweight and robust TN nylon cage ensures excellent guidance of the balls at high rotational speeds, contributing to the bearing's high limiting speed of 24,000 rpm.
- Precision Engineering: Manufactured from high-grade chrome steel with tight dimensional tolerances (e.g., bore: -0.008mm to 0) for precise fitment and reliable performance in precision applications.
- Standard Internal Clearance: Features a CN (Normal) group radial internal clearance, making it suitable for a wide range of standard operating conditions.
1203TN Bearing Typical Application Areas
The 1203TN bearing is ideally suited for a variety of industrial machinery and equipment where compact design, high-speed capability, and robust load support are required. Key sectors include:
- Electric Motors and small spindles
- Precision Gearboxes and transmission systems
- Pumps and Compressors
- Office automation equipment and precision instruments
- Various industrial machinery requiring a reliable double row ball bearing solution.
