7001 CEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7001 CEGA/P4A
Basic Information
System of measurement
Metric
Weight
0.021 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
12 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
28 mm
Outside diameter tolerance
-0.004mm to 0
Width
8 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
3.969 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
718 lbf
Radial static load rating
302 lbf
Limiting speed
100 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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7001 CEGA/P4A Bearing Product Overview & Core Advantages
The 7001 CEGA/P4A is a single-row angular contact ball bearing engineered for applications demanding exceptional precision and high-speed operation. As a P4A tolerance class bearing, it offers superior dimensional and running accuracy, making it ideal for high-precision spindles and instruments. Its key advantage lies in its ability to support combined loads (radial and axial) efficiently in one direction, while its extra light preload (Class A) ensures smooth, low-friction operation right from installation. The phenolic resin cage and factory-applied lubrication contribute to its high limiting speed of 100,000 rpm, establishing it as a top-tier precision bearing for demanding industrial environments.
7001 CEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7001 | Basic bearing series designation, indicating a metric, light series angular contact bearing with a 12mm bore. |
| CE | Designates a 15° contact angle and signifies that the bearing is part of a Universal Matchable (SU) set. This allows for precise axial play adjustment when mounted with a second, suitably paired bearing. |
| GA | Indicates the bearing is supplied with a specific preload group. In this case, Extra light preload (Class A). |
| P4A | Specifies the tolerance class. P4A represents very high precision for both dimensional and running accuracy, exceeding ABEC 7 standards. |
7001 CEGA/P4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a lightweight phenolic resin cage, a 15° contact angle, and optimized factory lubrication enables the bearing to achieve an exceptionally high limiting speed of 100,000 rpm, making it a premier high-speed bearing.
- Superior Precision and Rigidity: Manufactured to P4A tolerance class with tight dimensional tolerances, this bearing ensures minimal runout and vibration. The extra light preload eliminates internal clearance, providing high system rigidity and precise rotational accuracy from startup.
- Optimized Load Capacity: The angular contact design is specifically engineered to handle combined radial and axial loads simultaneously. Its universal matchable (SU) design allows for creating precisely preloaded duplex sets (e.g., DB, DF) to support higher loads and moments.
- Material and Lubrication: Constructed from high-grade chrome steel for rings and balls, ensuring durability and long service life. The bearing is pre-lubricated for immediate operation within a wide temperature range of -30°C to 110°C.
7001 CEGA/P4A Bearing Typical Application Areas
This high-precision angular contact ball bearing is ideally suited for applications requiring high rotational speed, accuracy, and rigidity. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and drilling spindles.
- Precision Instruments: Measuring devices, optical scanners, and encoder systems.
- High-Speed Motors and Drives: Servo motors, spindle motors, and turbo-molecular pumps.
- Robotics: High-accuracy joints and arm assemblies.
