7012 CEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7012 CEGA/P4A
Basic Information
System of measurement
Metric
Weight
0.42 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
7.938 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3870 lbf
Radial static load rating
2902 lbf
Limiting speed
34 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
3
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
Price:
$ 54.63
/ each
In Stock
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7012 CEGA/P4A Bearing Product Overview & Core Advantages
The 7012 CEGA/P4A is a single-row angular contact ball bearing engineered for ultra-high precision applications. Positioned in the P4A super-precision tolerance class, it delivers exceptional rotational accuracy and dimensional stability. Its 15° contact angle is optimized to support significant combined loads (radial and axial) simultaneously. Manufactured with Chrome Steel rings and balls, and featuring a lightweight Phenolic cage, this bearing is designed for demanding, high-speed operations up to 34,000 rpm. The Universal Matchable (SU) designation allows for precise preload configuration when mounted in sets, making it ideal for spindles requiring maximum rigidity and minimal runout.
7012 CEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| CE | Enhanced internal design with optimized internal geometry and surface finish. | Reduces friction, noise, and vibration for superior high-speed performance. |
| GA | Light preload (Class A / Extra Light). | Minimizes axial and radial play, enhancing system rigidity and positioning accuracy without excessive heat generation. |
| P4A | Super precision tolerance class, tighter than ABEC 7. | Guarantees extremely tight dimensional and running accuracy for applications requiring the highest level of precision. |
7012 CEGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row angular contact design, combined with the GA preload and P4A tolerances, provides exceptional stiffness and minimal deflection under load, which is critical for maintaining accuracy in machining and positioning systems.
- Superior Load Capacity: With a 15° contact angle, the bearing efficiently handles combined radial and axial loads. The dynamic load rating of 3870 lbf and static load rating of 2902 lbf ensure reliable performance under demanding conditions.
- Optimized High-Speed Performance: The lightweight Phenolic cage ensures stable operation and low centrifugal forces at the limiting speed of 34,000 rpm. The enhanced CE internal design further reduces friction and heat buildup.
- Universal Matching Capability: As a Universal Matchable (SU) bearing, it can be supplied in sets of three for pre-arranged preload configurations (DB, DF, DT), simplifying installation and ensuring optimal system performance and high rigidity.
7012 CEGA/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance machinery and systems, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Rotary Tables: Indexing and positioning systems.
- High-Frequency Motors and Spindles: Where high rotational speed and accuracy are paramount.
- Medical and Laboratory Equipment: Centrifuges and precision scanners.
- Aerospace Actuation Systems: Control surface actuators and auxiliary drives.
