S71911 CB/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S71911 CB/P4ADGA Bearing Product Overview & Core Advantages
The S71911 CB/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Operating under the P4A tolerance class, this bearing delivers superior running precision. Its universal matchable (SU) design allows for flexible mounting arrangements in sets, while the extra light preload (Class A) minimizes friction and heat generation, making it an excellent choice for high-speed applications. The combination of a phenolic cage and premium grease lubrication ensures stable performance across a wide temperature range.
S71911 CB/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
- S7: High-precision bearing series
- 1911: Standard dimension series (55mm bore, 80mm OD, 26mm width)
- CB: 15° contact angle and specific internal design
- P4A: High precision tolerance class (exceeding ABEC 7)
- DGA: Indicates grease lubrication and sealing configuration
S71911 CB/P4ADGA Bearing Structural Features & Performance Benefits
High Precision & Rigidity: Manufactured to P4A tolerance standards with extremely tight dimensional tolerances (bore/OD: -0.004mm to 0), ensuring minimal runout and vibration for precision applications.
Optimized for High-Speed Operation: The phenolic resin cage provides excellent dimensional stability and low friction at high rotational speeds, supporting the limiting speed of 34,000 rpm.
Superior Load Capacity: With a 15° contact angle, this bearing efficiently handles combined radial and axial loads, making it suitable for complex loading conditions.
Thermal Stability: The grease lubrication and phenolic cage maintain consistent performance across the operating temperature range of -30°C to 110°C.
S71911 CB/P4ADGA Bearing Typical Application Areas
The S71911 CB/P4ADGA is ideally suited for:
- Machine tool spindles and high-precision machining centers
- High-speed motors and precision gearboxes
- Medical equipment requiring quiet, precise rotation
- Aerospace components and instrumentation
- Robotic joints and automation systems
