S7012 CB/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7012 CB/P4A
Basic Information
System of measurement
Metric
Weight
0.45 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
95 mm
Outside diameter tolerance
-0.008mm 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° to 110 °C
Radial dynamic load rating
3285 lbf
Radial static load rating
2700 lbf
Limiting speed
19 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
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:
$ 501.05
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S7012 CB/P4A Bearing Product Overview & Core Advantages
The S7012 CB/P4A is a single-row angular contact ball bearing designed for applications demanding exceptional precision and high-speed performance. Engineered to a P4 (ABEC-7) tolerance class, it offers superior running accuracy. Its key advantage lies in its ability to support combined loads, efficiently carrying significant radial loads and thrust loads in one direction simultaneously. The combination of a phenolic cage, preloaded configuration, and factory-applied lubrication makes it an ideal, high-rigidity solution for high-speed spindles and other precision machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S7012 | Basic bearing designation, indicating a 60 mm bore, 95 mm OD, and 18 mm width. |
| CB | Specific internal design featuring a 15° contact angle and a moderate preload for optimal rigidity and speed performance. |
| P4A | Indicates a high-precision tolerance class (equivalent to ABEC-7), ensuring minimal runout and vibration for demanding applications. |
S7012 CB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row angular contact design with a 15° contact angle and CB preload provides exceptional axial and radial stiffness, minimizing deflection under load for superior machining accuracy.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the precision-ground chrome steel components and optimized internal geometry contribute to a high limiting speed of 19,000 rpm.
- Superior Load Capacity: The bearing is rated for a dynamic load of 3285 lbf and a static load of 2700 lbf, making it robust enough to handle demanding combined loads.
- Ready-to-Install and Sealed: The bearing is sealed and comes pre-lubricated, protecting it from contamination and simplifying installation for immediate, reliable operation.
S7012 CB/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, engraving, and high-frequency motor spindles.
- High-Speed Robotic Drives: Joints and actuators requiring high rigidity and speed.
- Medical and Dental Equipment: High-speed handpieces and centrifuges.
