7420 CBM
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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7420 CBM Bearing Product Overview & Core Advantages
The 7420 CBM is a single row angular contact ball bearing designed for precision applications requiring high rigidity and accurate rotational performance. Engineered to accommodate primarily combined loads (simultaneous radial and axial loads), its 40° contact angle provides excellent axial load capacity in one direction. Manufactured to P6 (ABEC-3) tolerance class, this bearing offers superior running accuracy, making it ideal for high-speed spindles and precision machinery where reliability and dimensional stability are critical.
7420 CBM Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Significance |
|---|---|---|
| C | Enhanced internal design with optimized contact angle and raceway geometry | Improved load distribution and higher speed capability |
| B | 40° contact angle | Superior axial load capacity while maintaining good radial performance |
| M | Brass cage (machined) | Excellent high-speed stability and durability under demanding conditions |
7420 CBM Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The single row construction with P6 tolerance class ensures precise dimensional accuracy and stable operation. The optimized raceway geometry and 40° contact angle provide exceptional stiffness against combined loads, minimizing deflection in precision applications.
Superior Load Capacity: With a dynamic load rating of 59,625 lbf and static load rating of 60,750 lbf, this bearing delivers reliable performance under significant radial and axial loads. The calculated distance from side face to load point (103 mm) ensures proper load distribution and mounting stability.
High-Speed Performance: The brass machined cage (M suffix) provides excellent guidance and stability at high rotational speeds, supporting the limiting speed of 3,200 rpm. The open design allows for efficient lubrication management in high-speed applications.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, the bearing offers high hardness, wear resistance, and dimensional stability across the operating temperature range of -30° to 110°C.
7420 CBM Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and CNC lathes requiring accurate rotational performance
- Industrial Pumps: Centrifugal pumps and compressor systems handling axial and radial loads
- Precision Gearboxes: Power transmission systems demanding high rigidity and speed capability
- Material Handling Equipment: High-performance conveyor systems and positioning equipment
- Industrial Robotics: Joint and articulation points requiring precise motion control
