7304 ACCBM
Single Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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7304 ACCBM Bearing Product Overview & Core Advantages
The 7304 ACCBM is a single row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and reliability. This precision bearing excels at handling combined loads, simultaneously supporting significant radial loads and axial loads in one direction. Manufactured to P6 (ABEC-3) tolerance class, it ensures smooth operation and minimal vibration, making it ideal for demanding industrial environments. Its compact design and optimized contact angle of 25° provide excellent operational stability and high-speed capability.
7304 ACCBM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7304 | Basic bearing designation indicating a metric series bearing with a 20mm bore, 52mm OD, and 15mm width. |
| A | Denotes a 25° contact angle, optimized for higher axial load capacity. |
| C | Specifies a P6 (ABEC-3) tolerance class for high running accuracy. |
| BM | Indicates the bearing is lubricated and ready for operation. |
7304 ACCBM Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single row design with a 25° contact angle provides robust support, enabling the bearing to handle substantial combined radial and axial loads efficiently. The optimized internal geometry ensures stable operation under demanding conditions.
- Precision & High-Speed Performance: Manufactured to P6 tolerance and featuring a brass cage, this bearing achieves smooth running and is capable of operating at high speeds up to 26,000 rpm. The precision-ground raceways and balls minimize friction and heat generation.
- Material & Durability: Constructed from chrome steel for both rings and balls, the bearing offers high wear resistance and a long service life. The open seal type allows for easy re-lubrication in specific applications, though the pre-lubricated version (as indicated by the BM suffix) is ready for immediate use.
- Wide Temperature Range: Suitable for operation within a temperature range of -30°C to 110°C, making it versatile for various industrial climates and applications.
7304 ACCBM Bearing Typical Application Areas
The 7304 ACCBM angular contact ball bearing is ideally suited for high-performance applications including:
- Machine Tool Spindles and high-precision spindles
- High-Speed Motors and Electric Spindles
- Pumps and Compressors
- Precision Gearboxes and transmission systems
- Agricultural machinery and industrial automation equipment
