6312 TN9/C3
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6312 TN9/C3 Bearing Product Overview & Core Advantages
The 6312 C3 is a single row deep groove ball bearing engineered for reliable performance in a wide range of industrial applications. Its fundamental design excels at accommodating primarily radial loads, while also being capable of handling moderate axial loads in both directions. Manufactured to ABEC 1 | ISO P0 tolerance standards, this bearing offers a robust and cost-effective solution for general machinery. A key feature is its C3 radial internal clearance, which makes it particularly suitable for applications involving thermal expansion, such as in electric motors, or where interference fits are used, ensuring optimal performance and longevity.
6312 TN9/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 6312 | Basic Bearing Number | Denotes a single row deep groove ball bearing with a 60 mm bore, 130 mm OD, and 31 mm width. |
| C3 | Radial Internal Clearance | Indicates a greater-than-normal radial internal clearance. This is critical for applications with high rotational speeds or where operational heat generation causes shaft expansion, preventing premature bearing failure. |
6312 TN9/C3 Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & High-Capacity Design: The uninterrupted deep groove raceways on both rings enable smooth operation and high radial load capacity (18,412 lbf dynamic / 11,735 lbf static).
- Nylon Cage (Polyamide): The standard cage material is lightweight Nylon, which reduces friction, allows for quieter operation, and is well-suited for high-speed applications (limiting speed of 5,300 rpm).
- Open Seal & Versatile Lubrication: As an open bearing, it offers no integral sealing, providing maximum speed capability and allowing for custom lubrication schemes tailored to specific operational environments.
- Precision & Reliability: Built to ABEC 1 (ISO P0) precision class with tight dimensional tolerances, ensuring consistent performance and ease of installation in standard machinery.
6312 TN9/C3 Bearing Typical Application Areas
The 6312 C3 bearing is a versatile component found in numerous industrial sectors, including:
- Electric Motors and Generators (utilizing the C3 clearance for thermal expansion)
- Industrial Gearboxes and Transmissions
- Material Handling Equipment (conveyors, pulleys)
- Agricultural Machinery
- General Industrial Machinery requiring robust ball bearing performance
