71919 CDGA/P4
71900 Series Super Precision Angular Contact Ball Bearings
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71919 CDGA/P4 Bearing Product Overview & Core Advantages
The 71919 CDGA/P4 is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4 tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 15° contact angle provides optimal performance for combined loads, effectively handling both radial and axial forces. The phenolic cage and universal matching capability (SU) make it ideal for precision spindle arrangements where high-speed operation and thermal stability are critical requirements.
71919 CDGA/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CDGA | Universal match bearing with specific preload and contact angle | Enables precise bearing arrangements with optimized stiffness |
| P4 | High precision tolerance class | Ensures exceptional running accuracy and minimal vibration |
71919 CDGA/P4 Bearing Structural Features & Performance Benefits
High Precision Construction: The bearing features tight dimensional tolerances (bore: -0.004mm to 0, OD: -0.004mm to 0) and P4 precision grade for applications demanding minimal runout and vibration.
Optimized Load Capacity: With a radial dynamic load rating of 11,115 lbf and static load rating of 12,375 lbf, the bearing delivers reliable performance under combined loading conditions.
High-Speed Capability: The phenolic cage and optimized internal geometry enable operation at 7,500 rpm limiting speed, making it suitable for high-speed spindle applications.
Thermal Stability: The phenolic cage material provides excellent dimensional stability across the operating temperature range of -30°C to 110°C.
Universal Matching Design: As part of a universal matchable set (3 bearings), it enables precise preload control and simplified installation in matched bearing arrangements.
71919 CDGA/P4 Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- Precision Industrial Pumps - High-speed centrifugal pumps and compressor systems
- Aerospace Systems - Aircraft accessory drives and precision positioning systems
- Medical Equipment - High-speed dental handpieces and laboratory instrumentation
- Robotics & Automation - Precision robotic joints and high-accuracy positioning systems
