307
With Filling Slots Deep Groove Bearings
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Basic Information
Main Dimensions
Performance
Materials
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307 Bearing Product Overview & Core Advantages
The 307 metric ball bearing is a high-performance single row deep groove ball bearing engineered for robust radial load applications. Manufactured from high-grade chrome steel with a nylon cage, it delivers reliable operation and long service life. Its open design allows for versatile lubrication options, making it suitable for a wide range of industrial machinery requiring dependable performance under demanding conditions.
307 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 307 | Standard bearing designation indicating a metric bearing with a 35mm bore, 80mm OD, and 21mm width. |
| Open | No integral seals or shields, allowing for high-speed operation and custom lubrication. |
| P0 | Standard tolerance class per ISO standards, ensuring consistent dimensional accuracy. |
| CN | Standard radial internal clearance for normal operating conditions. |
307 Bearing Structural Features & Performance Benefits
Deep Groove Raceway: The optimized raceway geometry enables smooth operation and efficient handling of radial loads and moderate axial loads in both directions.
Nylon Cage: The nylon cage offers excellent strength-to-weight ratio, reduces friction, and is suitable for high-speed applications up to the limiting speed of 9,500 rpm.
Chrome Steel Construction: Both rings and balls are made from chrome steel, providing high hardness, wear resistance, and a long operational lifespan.
Open Seal Type: The open design facilitates easy re-lubrication and allows for operation at the maximum limiting speed, making it ideal for applications where heat dissipation is critical.
307 Bearing Typical Application Areas
The 307 bearing is widely used in various industrial sectors due to its robust design and reliable performance. Key applications include:
- Electric Motors and Gearboxes
- Industrial Pumps and Compressors
- Material Handling Conveyors
- Agricultural Machinery
- General Industrial Machinery requiring high radial dynamic load rating (7,801 lbf)