S71924 CDGC/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71924 CDGC/P4A Bearing Product Overview & Core Advantages
The S71924 CDGC/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. As a single bearing with universal matching (SU designation), it can be mounted in sets to achieve optimal preload and rigidity. This bearing excels at simultaneously handling combined radial and axial loads with its 15° contact angle. Manufactured to P4A tolerance class, it offers superior dimensional and running accuracy, making it ideal for high-speed spindles and precision machinery where high rigidity and minimal runout are critical.
S71924 CDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71924 | Basic bearing designation, indicating a high-precision angular contact ball bearing series with a 120mm bore. |
| C | Specifies a 15° contact angle, optimized for handling combined loads. |
| DG | Indicates the bearing is universally matchable (SU), allowing for flexible mounting in sets (back-to-back, face-to-face, or tandem) to achieve the desired preload and stiffness. |
| C | Denotes a Moderate preload (Class C), providing a balance between rigidity and operational smoothness. |
| P4A | The tolerance class, signifying extremely high precision in both dimensional and running accuracy, exceeding ABEC 7 standards. |
S71924 CDGC/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The bearing's design, combined with the Moderate (C) preload, ensures high system rigidity, effectively resisting deflection under combined radial and axial loads. Its dynamic load rating of 17,550 lbf and static load rating of 20,588 lbf confirm its robust performance.
High-Speed Performance: The use of a lightweight, durable phenolic resin cage reduces centrifugal forces, enabling a high limiting speed of 11,000 rpm. This makes it suitable for high-speed spindle applications.
Precision Engineering: Manufactured to P4A tolerances with a bore and OD tolerance of just -0.004mm to 0, this bearing guarantees exceptional running accuracy and minimal vibration, which is critical for the surface finish and precision of machined parts.
Sealed and Lubricated for Life: As a sealed bearing, it is pre-lubricated with grease, protecting against contamination and providing long-term, maintenance-free operation within its specified temperature range of -30°C to 110°C.
S71924 CDGC/P4A Bearing Typical Application Areas
The S71924 CDGC/P4A is engineered for high-performance applications across various industries, including:
- Machine Tool Spindles: CNC machining centers, grinding spindles, and milling spindles requiring high speed, precision, and rigidity.
- Precision Instrumentation: High-accuracy measuring devices and laboratory equipment.
- High-Speed Motors and Drives: Applications where low friction and high rotational accuracy are paramount.
- Robotics: Critical joints and axes demanding high precision and reliability.
