7252 BM
Single Row Angular Contact Ball Bearings
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Part No.
Part No.
7252 BM
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
66 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
260 mm
Bore diameter tolerance
-0.025mm to 0
Outside diameter
480 mm
Outside diameter tolerance
-0.033mm to 0
Width
80 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
5 mm
Contact angle
40 °
Distance from side face to load point
195 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
346 mm
Inner ring small-side shoulder diameter
304 mm
Outer Ring Dimensions
Shoulder diameter outer ring
400 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
114075 lbf
Radial static load rating
175500 lbf
Limiting speed
1.5 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
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In Stock
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7252 BM Bearing Product Overview & Core Advantages
The 7252 BM is a single row angular contact ball bearing engineered for precision applications requiring high rigidity and accurate rotational performance. Designed to accommodate combined loads (simultaneous radial and axial forces), this bearing excels in high-speed operations with its optimized 40° contact angle and P6 tolerance class (equivalent to ABEC-3). Its open design facilitates custom lubrication schemes while maintaining exceptional dimensional stability across a wide temperature range (-30° to 110°C).
7252 BM Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Performance Benefit |
|---|---|---|
| BM | Brass Cage | Enhanced high-speed capability and superior lubrication retention |
7252 BM Bearing Structural Features & Performance Benefits
- High Rigidity Design: The single row angular contact configuration with 40° contact angle provides optimal stiffness for precise shaft positioning
- Superior Load Capacity: Rated for 114,075 lbf dynamic and 175,500 lbf static radial loads, handling significant combined loading conditions
- Precision Engineering: P6 tolerance class ensures consistent performance in demanding applications with minimal runout
- Optimized Materials: Chrome steel rings and balls with brass cage deliver excellent wear resistance and dimensional stability
- Thermal Performance: Maintains structural integrity across operating temperatures from -30° to 110°C
7252 BM Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers requiring rigid bearing support
- Industrial Pumps: Applications demanding reliable performance under combined loads
- Precision Gearboxes: Power transmission systems requiring accurate rotational control
- High-Speed Compressors: Equipment operating at elevated speeds with axial thrust requirements
- Robotics and Automation: Precision motion control applications
