S71912 CE/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71912 CE/P4A
Basic Information
System of measurement
Metric
Weight
0.19 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
23
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3668 lbf
Radial static load rating
2655 lbf
Limiting speed
22 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:
$ 655.12
/ each
In Stock
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S71912 CE/P4A Bearing Product Overview & Core Advantages
The S71912 CE/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a single-row bearing, it excels at supporting combined loads—simultaneously handling significant radial loads and axial loads in one direction. Its P4 (ABEC-7) tolerance class ensures ultra-precise running, making it ideal for high-speed spindles and other precision machinery. The bearing comes preloaded and lubricated from the factory, simplifying installation and ensuring immediate, reliable performance.
S71912 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
The model number S71912 CE/P4A provides detailed technical specifications:
- S7: Indicates a series of high-precision angular contact ball bearings.
- 1912: Denotes the size series, with a 60mm bore, 85mm outside diameter, and 13mm width.
- CE: Signifies a contact angle of 15° and a specific internal design optimized for high-speed operation and rigidity.
- P4A: Defines the tolerance class P4 (ABEC-7) and a specific preload level (A) for optimal stiffness and running accuracy.
S71912 CE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to a P4 tolerance class, this bearing guarantees minimal runout and vibration. The preload eliminates internal clearance, resulting in superior system stiffness and precise shaft positioning.
- Optimized for High Speeds: The phenolic resin cage (Phenolic) is lightweight and robust, enabling smooth operation at the high limiting speed of 22,000 rpm. The standard factory lubrication is formulated for high-speed performance.
- Superior Load Capacity: The 15° contact angle and high-quality chrome steel construction provide an excellent dynamic load rating of 3668 lbf and static load rating of 2655 lbf, reliably handling combined radial and axial loads.
- Sealed and Lubricated for Life: As a sealed and pre-lubricated unit, it is protected from contamination and is maintenance-free within its specified operating temperature range of -30°C to 110°C.
S71912 CE/P4A Bearing Typical Application Areas
This bearing is engineered for high-performance applications, including:
- Machine Tool Spindles for CNC milling and grinding machines
- High-Speed Electric Motors and spindles
- Precision Gearboxes and transmission systems
- Medical and Dental Equipment handpieces
- Robotic Arm Joints and precision automation systems
