7408 BM
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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7408 BM Bearing Product Overview & Core Advantages
The 7408 BM is a single row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate combined loads (simultaneous radial and axial loads), this bearing delivers superior performance in demanding operational environments. Its 40° contact angle provides optimal axial load capacity while maintaining high-speed capabilities. Manufactured with precision P6 (ABEC-3) tolerance, this bearing ensures reliable performance in applications where accuracy and high rigidity are critical requirements.
7408 BM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Impact |
|---|---|---|
| 7408 | Standard bearing designation (40mm bore, 110mm OD, 27mm width) | Standard dimensional specifications for compatibility |
| B | 40° contact angle design | Enhanced axial load capacity and stiffness |
| M | Brass cage construction | Improved high-speed performance and durability |
7408 BM Bearing Structural Features & Performance Benefits
Optimized Contact Design: The 40° contact angle provides superior axial load capacity while maintaining excellent radial load performance, making it ideal for applications with combined loading conditions.
High-Speed Brass Cage: The brass cage material ensures reliable operation at limiting speeds up to 11,000 rpm, providing excellent guidance and stability during high-speed rotation.
Precision Engineering: Manufactured to P6 (ABEC-3) tolerance class with tight dimensional controls (bore tolerance: -0.01mm to 0), ensuring consistent performance and precise shaft positioning.
Superior Load Capacity: With dynamic load rating of 15,795 lbf and static load rating of 10,125 lbf, this bearing delivers reliable performance under substantial operational stresses.
Chrome Steel Construction: Both rings and balls manufactured from high-grade chrome steel provide excellent wear resistance and long service life in demanding applications.
7408 BM Bearing Typical Application Areas
Machine Tool Spindles: Precision machining centers and CNC equipment requiring high rigidity and accuracy
Industrial Pumps: High-speed centrifugal pumps and compressor systems
Precision Gearboxes: Transmission systems demanding accurate shaft positioning and combined load capacity
Robotics & Automation: Joint mechanisms and precision positioning systems
Medical Equipment: High-speed dental handpieces and precision medical devices
Electric Motors: High-performance motor applications requiring precise bearing alignment and high-speed capability
