S71910 CB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S71910 CB/P4A Bearing Product Overview & Core Advantages
The S71910 CB/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. As a single-row bearing with a 15° contact angle, it is optimized to handle combined loads, efficiently supporting significant radial loads alongside axial loads in one direction. Manufactured to P4 (ABEC-7) tolerance class, it ensures minimal runout and vibration, making it ideal for high-precision, high-reliability spindles and machinery. Its compact design, featuring a 50 mm bore and 12 mm width, allows for space-saving integration into sophisticated assemblies.
S71910 CB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71910 | Denotes the bearing series and size (50mm bore, 72mm OD). |
| CB | Specifies a specific contact angle (15°) and internal design for optimized load distribution. |
| P4A | Indicates the high-precision tolerance class P4 (ABEC-7), with 'A' specifying dimensional and running accuracy requirements. |
S71910 CB/P4A Bearing Structural Features & Performance Benefits
High-Speed & High-Rigidity Performance: The combination of a phenolic resin cage and a 15° contact angle provides excellent dimensional stability and low friction at high rotational speeds, contributing to a limiting speed of 26,000 rpm. This design ensures high rigidity and precise shaft guidance.
Superior Load Capacity: Engineered with chrome steel rings and balls, this bearing achieves a high dynamic load rating of 1755 lbf and a static load rating of 1418 lbf, reliably handling demanding combined radial and axial loads.
Sealed & Lubricated for Longevity: As a sealed and pre-lubricated unit, it is protected from contamination and is ready for immediate installation, offering a maintenance-free solution within its specified operating temperature range of -30°C to 110°C.
S71910 CB/P4A Bearing Typical Application Areas
This high-precision bearing is ideally suited for applications where accuracy and speed are paramount. Key industries and equipment include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Advanced Robotics and Automation Equipment
