S71912 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71912 CD/P4A
Basic Information
System of measurement
Metric
Weight
0.2 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
85 mm
Outside diameter tolerance
-0.008mm to 0
Width
13 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
24
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
4478 lbf
Radial static load rating
3442 lbf
Limiting speed
15 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:
$ 655.22
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71912 CD/P4A Bearing Product Overview & Core Advantages
The S71912 CD/P4A is a single-row angular contact ball bearing engineered for high-precision and high-speed applications. Characterized by its 15° contact angle and P4 (ABEC-7) tolerance class, it is designed to accommodate combined loads, primarily thrust loads in one direction with radial loads. Its compact design, featuring a 13 mm width, makes it an ideal solution for space-constrained assemblies demanding high rigidity and exceptional rotational accuracy.
S71912 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71912 | Denotes the bearing series and size. S7 indicates a high-precision angular contact series. |
| C | Specifies a 15° contact angle, optimized for high-speed operation. |
| D | Indicates a preload is applied, enhancing rigidity and minimizing axial/radial play. |
| P4A | Defines the tolerance class as P4 (equivalent to ABEC-7), ensuring ultra-precise running accuracy and dimensional stability. |
S71912 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The combination of a phenolic resin cage, P4 precision, and preload delivers exceptional system stiffness and minimizes deflection under load, crucial for maintaining accuracy.
- Optimized Load Capacity: The 15° contact angle is engineered to efficiently handle high thrust loads in one direction while supporting significant radial loads, making it suitable for combined load scenarios.
- Superior High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces and allows for a limiting speed of 15,000 rpm. The bearing is factory lubricated for immediate high-speed operation.
- Durability and Reliability: Manufactured from high-grade chrome steel for rings and balls, this bearing offers excellent wear resistance and a long operational life under demanding conditions.
S71912 CD/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance machinery requiring high rotational speeds and accuracy, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Robotic Drives and Actuators
- Medical and Dental Equipment
