7012 ACD/P4ADGB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7012 ACD/P4ADGB
Basic Information
System of measurement
Metric
Weight
0.81 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
95 mm
Outside diameter tolerance
-0.004mm to 0
Width
36 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
19
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
14040 lbf
Radial static load rating
15075 lbf
Limiting speed
39 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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7012 ACD/P4ADGB Bearing Product Overview & Core Advantages
The 7012 ACD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a universal matchable (SU) bearing supplied in a pre-loaded pair, it delivers superior performance under combined radial and axial loads. Manufactured to P4A tolerance class, this bearing offers high dimensional stability and is optimized for high-speed operation up to 39,000 rpm, making it ideal for high-precision, high-reliability machinery.
7012 ACD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle |
| P4A | High Precision Tolerance Class (superior to ABEC 7) |
| DGB | Universal Matchable (SU) arrangement with Light Preload (Class B) |
7012 ACD/P4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 25° contact angle and universal matching design enable the bearing pair to handle significant combined loads (Radial dynamic: 14,040 lbf / Static: 15,075 lbf) while maintaining system stiffness.
- Precision High-Speed Performance: The phenolic cage and precision-ground chrome steel components contribute to smooth operation at limiting speeds of 39,000 rpm, minimizing friction and heat generation.
- Optimized Preload: Supplied as a pre-loaded pair (Light/Class B), ensuring immediate precision performance without additional adjustment, reducing installation complexity.
- Superior Material Quality: Manufactured from high-grade chrome steel for both rings and balls, providing excellent wear resistance and long service life in demanding conditions.
7012 ACD/P4ADGB Bearing Typical Application Areas
The 7012 ACD/P4ADGB is engineered for high-performance applications including:
- Machine Tool Spindles
- High-Speed Precision Grinding Spindles
- Industrial Pumps and Compressors
- Precision Instrumentation and Robotics
- Aerospace Actuation Systems
