70892 AM
Single Row Angular Contact Ball Bearings
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Part No.
Part No.
70892 AM
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
24.5 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
460 mm
Bore diameter tolerance
-0.035mm to 0
Outside diameter
580 mm
Outside diameter tolerance
-0.038mm to 0
Width
37 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
2.1 mm
Contact angle
30 °
Distance from side face to load point
169 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
505 mm
Outer Ring Dimensions
Shoulder diameter outer ring
536 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
59625 lbf
Radial static load rating
126000 lbf
Limiting speed
1.1 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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70892 AM Bearing Product Overview & Core Advantages
The 70892 AM is a single row angular contact ball bearing engineered for high-precision applications requiring exceptional rigidity and the capacity to handle combined loads. Its 30° contact angle is optimized to support significant axial loads in one direction alongside radial loads, making it ideal for high-speed spindles and precision machinery. Manufactured to a P6 (ABEC-3) tolerance class, this bearing ensures reliable performance and long service life in demanding operational environments.
70892 AM Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| AM | Indicates the bearing is supplied as a universal match design. This means two single row angular contact ball bearings can be mounted together in a back-to-back (DB) or face-to-face (DF) arrangement to handle bidirectional axial loads and increase overall system rigidity. |
70892 AM Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single row design with a 30° contact angle provides excellent resistance to deflection under combined radial and axial loads. The optimized internal geometry ensures stable operation.
- Precision & High-Speed Performance: Built to P6 tolerance class with a brass cage, this bearing maintains dimensional stability and smooth rotation, contributing to its reliable performance at its specified limiting speed.
- Durability & Material Quality: Constructed from chrome steel for both rings and balls, the bearing offers high wear resistance and fatigue life. The open seal type allows for custom lubrication schemes to suit specific application needs.
70892 AM Bearing Typical Application Areas
This bearing is suited for high-performance machinery and systems, including:
- Machine Tool Spindles
- High-Speed Pumps and Compressors
- Precision Gearboxes
- Industrial Robotics and Automation Equipment
