7304 BECBY
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 BECBY Bearing Product Overview & Core Advantages
The 7304 BECBY is a single row angular contact ball bearing designed for high-precision applications requiring superior performance under combined loads. Engineered to accommodate significant axial loads in one direction alongside radial loads, this bearing features a 40° contact angle for optimal thrust capacity. Manufactured to P6 (ABEC-3) tolerance class, it delivers exceptional running accuracy and rotational precision. The open design, combined with a robust brass cage, facilitates high-speed operation up to 18,000 rpm, making it an ideal solution for demanding applications where high rigidity and reliability are paramount.
7304 BECBY Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7304 | Basic bearing designation indicating a metric single row angular contact ball bearing with 20mm bore, 52mm OD, and 15mm width. |
| BE | Designates 40° contact angle and optimized internal geometry for high axial load capacity. |
| CB | Indicates P6 tolerance class (equivalent to ABEC-3) for enhanced running accuracy and precision. |
| Y | Specifies brass cage construction for superior strength and performance at high speeds. |
7304 BECBY Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: The 40° contact angle and precisely calculated raceway curvature enable superior axial load carrying capacity while maintaining excellent radial load performance. This design ensures optimal stress distribution and extended service life.
High-Speed Capability: The brass cage (Y suffix) provides exceptional dimensional stability and strength at elevated rotational speeds, supporting the bearing's maximum limiting speed of 18,000 rpm. The open design allows for efficient lubrication and heat dissipation.
Precision Engineering: Manufactured to P6 tolerance class, this bearing delivers minimal runout and vibration, ensuring smooth operation in precision applications. The tight dimensional tolerances on bore diameter, outside diameter, and width guarantee consistent performance and easy installation.
Robust Material Construction: Both rings and balls are manufactured from high-grade chrome steel, providing excellent wear resistance and fatigue strength. The combination of premium materials and precision manufacturing results in a dynamic load rating of 4,275 lbf and static load rating of 2,250 lbf.
7304 BECBY Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers requiring accurate rotational performance and rigidity
- Industrial Pumps: Centrifugal and rotary pumps handling axial and radial loads simultaneously
- High-Speed Motors: Electric motors and generators operating at elevated speeds
- Precision Gearboxes: Transmission systems demanding accurate positioning and load capacity
- Robotics and Automation: Robotic joints and positioning systems requiring high precision and reliability
- Medical Equipment: High-speed dental handpieces and surgical tools
