71910 CD/P4A
71900 Series 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
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71910 CD/P4A Bearing Product Overview & Core Advantages
The 71910 CD/P4A is a single-row angular contact ball bearing engineered for high-precision applications demanding exceptional rotational accuracy and rigidity. Its design is optimized to support combined loads, accommodating significant axial loads in one direction alongside radial loads. Manufactured to a P4 (ABEC-7) tolerance class, this bearing ensures minimal runout and vibration, making it an ideal component for high-speed spindles and other precision machinery where reliability and performance are critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71910 | Basic bearing series and size designation. |
| C | Indicates a 15° contact angle, optimized for high-speed operation and axial load capacity. |
| D | Signifies that the bearing is manufactured with a high-precision preload for enhanced rigidity and precise shaft positioning. |
| P4 | Denotes the tolerance class P4 (ABEC-7), signifying ultra-precise dimensional and running accuracy. |
| A | Specifies that the bearing is lubricated from the factory for immediate operation. |
71910 CD/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The combination of a 15° contact angle and an applied preload (D) provides superior system stiffness, minimizing deflection under load and ensuring precise shaft guidance. This is critical for maintaining accuracy in machining and positioning applications.
Optimized for High Speeds: The phenolic resin cage offers excellent strength-to-weight ratio and low friction, contributing to the bearing's high limiting speed of 28,000 rpm. This makes it a premier choice for high-speed spindles.
Superior Load Capacity: The angular contact design efficiently handles combined radial and axial loads. With a dynamic load rating of 3038 lbf and a static load rating of 2340 lbf, it offers reliable performance in demanding conditions.
Premium Materials: Constructed from chrome steel for both rings and balls, the bearing ensures high durability, wear resistance, and a long operational life. The open design allows for customized lubrication regimes to suit specific application needs.
71910 CD/P4A Bearing Typical Application Areas
The 71910 CD/P4A is designed for high-performance machinery where precision and speed are non-negotiable. Key application areas include:
- Machine Tool Spindles: For CNC milling, grinding, and turning centers requiring high rigidity and speed.
- High-Speed Motors and Drives: Used in applications demanding minimal vibration and high rotational accuracy.
- Precision Instrumentation: Critical for medical devices, optical scanners, and measuring equipment.
- Aerospace and Defense Systems: Where reliability under high-speed and precision conditions is paramount.
