7406 BM
Single Row Angular Contact Ball Bearings
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Part No.
Part No.
7406 BM
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.83 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.013mm to 0
Width
23 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
1.5 mm
Contact angle
40 °
Distance from side face to load point
37 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
54.3 mm
Inner ring small-side shoulder diameter
44.6 mm
Outer Ring Dimensions
Shoulder diameter outer ring
66.6 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
10688 lbf
Radial static load rating
6525 lbf
Limiting speed
13 X 1000 rpm
Lubrication
Lubricated
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Brass
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 37.73
/ each
In Stock
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7406 BM Bearing Product Overview & Core Advantages
The 7406 BM is a single row angular contact ball bearing engineered for high-precision applications requiring superior performance under combined loads. This precision bearing is designed to accommodate significant axial loads in one direction simultaneously with radial loads, making it ideal for machine tool spindles and other high-speed, high-rigidity systems. Its P6 (ABEC-3) tolerance class ensures exceptional running accuracy, while the optimized 40° contact angle provides excellent axial load capacity. The open design and brass cage contribute to its reliable operation at limiting speeds up to 13,000 rpm.
7406 BM Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Performance Benefit |
|---|---|---|
| BM | Brass Cage, Machined | Provides excellent strength and stability at high speeds, superior to stamped steel cages |
7406 BM Bearing Structural Features & Performance Benefits
- Optimized Contact Angle (40°): Specifically engineered to handle substantial one-direction axial loads in combination with radial forces, making it suitable for applications with significant thrust requirements.
- High-Speed Capability: The machined brass cage (BM) ensures dimensional stability and reduced friction at limiting speeds of 13,000 rpm, while the open design facilitates efficient lubrication and heat dissipation.
- Precision Performance: Manufactured to P6 (ABEC-3) tolerance class with tight dimensional controls on bore, outside diameter, and width for consistent high-precision operation in demanding applications.
- Robust Load Capacity: With a dynamic load rating of 10,688 lbf and static load rating of 6,525 lbf, this bearing delivers reliable performance under substantial combined loads.
- Superior Material Construction: Chrome steel rings and balls provide excellent wear resistance and fatigue life, ensuring long-term reliability in continuous operation.
7406 BM Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding equipment
- Industrial Pumps: Centrifugal pumps and compressor systems requiring axial load support
- Precision Gearboxes: Automotive transmissions and industrial gear units
- Robotics and Automation: High-precision robotic joints and positioning systems
- Aerospace Components: Aircraft auxiliary systems and flight control mechanisms
