7012 CBGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7012 CBGA/P4A
Basic Information
System of measurement
Metric
Weight
0.45 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
18 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
6.747 mm
Ball quantity
28
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3285 lbf
Radial static load rating
2700 lbf
Limiting speed
33 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
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
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7012 CBGA/P4A Bearing Product Overview & Core Advantages
The 7012 CBGA/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Manufactured to P4A tolerance class, this bearing delivers superior running accuracy and dimensional stability. Its 15° contact angle and extra light preload (Class A) make it ideal for handling combined loads, providing high rigidity and precise shaft positioning. As a Universal Matchable (SU) bearing, it can be universally paired with another bearing of the same type for simplified mounting and optimal performance in preloaded arrangements.
7012 CBGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
The model number 7012 CBGA/P4A provides detailed technical specifications:
- 7012: Basic bearing series and size designation (60mm bore, 95mm OD, 18mm width).
- C: Denotes a 15° contact angle.
- B: Indicates a 40° contact angle modification (not applicable for this 15° bearing, but part of standard nomenclature).
- GA: Specifies extra light preload (Class A).
- P4A: Identifies the tolerance class, signifying very high precision levels for both dimensional and running accuracy.
7012 CBGA/P4A Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Built to P4A tolerance standards with a phenolic resin cage, this bearing ensures minimal vibration and high operational stability, crucial for high-speed applications.
- Optimized Load Capacity: The angular contact design efficiently supports combined radial and axial loads. With a dynamic load rating of 3285 lbf and static load rating of 2700 lbf, it offers reliable performance under significant stress.
- Superior High-Speed Performance: The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 33,000 rpm, reducing centrifugal forces and heat generation.
- Pre-Lubricated for Immediate Use: The bearing comes lubricated and ready for installation, suitable for a wide operating temperature range from -30°C to 110°C.
7012 CBGA/P4A Bearing Typical Application Areas
The 7012 CBGA/P4A is engineered for high-performance machinery requiring precision and speed, including:
- Machine Tool Spindles
- High-Speed Precision Drives
- Industrial Pumps and Compressors
- Robotic Arms and Precision Positioning Systems
- Aerospace and Defense Actuation Systems
