S71913 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S71913 CD/P4A
Basic Information
System of measurement
Metric
Weight
0.21 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
65 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
90 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
26
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
4680 lbf
Radial static load rating
3825 lbf
Limiting speed
14 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:
$ 769.78
/ each
In Stock
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S71913 CD/P4A Bearing Product Overview & Core Advantages
The S71913 CD/P4A is a precision angular contact ball bearing designed for applications demanding high rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, this single-row bearing is preloaded and capable of supporting combined radial and axial loads simultaneously. Its compact cross-section, with a 65 mm bore and 13 mm width, makes it ideal for space-constrained, high-performance machinery. The bearing comes pre-lubricated and sealed, ensuring immediate installation and reliable, long-term operation.
S71913 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71913 | Basic bearing designation, indicating a metric series, 65mm bore, 90mm OD, 13mm width angular contact ball bearing. |
| CD | Indicates a specific contact angle of 15° and a preload class, optimizing it for high rigidity and precise shaft positioning. |
| P4A | Denotes a very high precision tolerance class (equivalent to ABEC-7), ensuring minimal runout and vibration for superior performance. |
S71913 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 15° contact angle and factory-applied preload work in tandem to provide exceptional system stiffness, minimizing deflection under load and ensuring high running accuracy essential for precision applications.
- Optimized Load Capacity: Engineered to handle significant combined loads (radial and axial), with a dynamic load rating of 4680 lbf and a static load rating of 3825 lbf, guaranteeing durability and long service life.
- High-Speed Capability: The lightweight and robust phenolic cage ensures stable operation and guides the balls effectively, contributing to the high limiting speed of 14,000 rpm. The phenolic material offers excellent performance with reduced friction.
- Sealed and Lubricated for Life: As a sealed bearing, it is protected from contaminants. Pre-lubrication means it is ready for use, offering a maintenance-free solution within its specified temperature range of -30° to 110°C.
S71913 CD/P4A Bearing Typical Application Areas
The S71913 CD/P4A is ideally suited for high-precision and high-speed machinery, including:
- Machine Tool Spindles
- High-Frequency Electric Spindles
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Advanced Robotics and Automation Systems
