70/530 BM
Single Row Angular Contact Ball Bearings
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Part No.
Part No.
70/530 BM
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
180 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
530 mm
Bore diameter tolerance
-0.04mm to 0
Outside diameter
780 mm
Outside diameter tolerance
-0.045mm to 0
Width
112 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
6 mm
Contact angle
30 °
Distance from side face to load point
332 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
628 mm
Inner ring small-side shoulder diameter
580 mm
Outer Ring Dimensions
Shoulder diameter outer ring
688 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
166725 lbf
Radial static load rating
382500 lbf
Limiting speed
0.8 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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70/530 BM Bearing Product Overview & Core Advantages
The 70/530 BM is a single row angular contact ball bearing engineered for applications requiring high precision and the capacity to handle significant combined loads. Its design is optimized to support substantial radial loads and axial loads in one direction simultaneously. Manufactured to a P6 (ABEC-3) tolerance class, this bearing ensures exceptional running accuracy, making it ideal for high-performance machinery where reliability and precision are paramount. The robust construction, featuring a brass cage and chrome steel components, guarantees durability and long service life under demanding conditions.
70/530 BM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 70/530 | Indicates the bearing series and a bore diameter of 530 mm. |
| BM | Signifies an optimized internal design with a specific contact angle of 30° for enhanced axial load capacity. |
70/530 BM Bearing Structural Features & Performance Benefits
- High Load Capacity: The 30° contact angle and robust construction enable the bearing to support high radial dynamic load ratings of 166,725 lbf and radial static load ratings of 382,500 lbf, making it exceptionally capable of handling combined loads.
- Precision & Rigidity: Manufactured to P6 tolerance with precise raceway and ball geometry, this bearing provides high running accuracy and system rigidity, crucial for minimizing deflection in precision applications.
- Optimized Cage Design: The brass cage ensures reliable performance, providing excellent guidance and stability for the balls, even at the specified limiting speed.
- Versatile Operating Range: With a temperature range from -30°C to 110°C and being pre-lubricated, the bearing is ready for operation in a wide array of industrial environments.
70/530 BM Bearing Typical Application Areas
This bearing is designed for heavy-duty and precision applications, including:
- Large Industrial Gearboxes
- Heavy-Duty Pumps and Compressors
- Main Spindles for Large Machine Tools
- Mining and Construction Equipment
- Large-Diameter Precision Rotating Assemblies
