S71905 CDGA/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
S71905 CDGA/P4A Bearing Product Overview & Core Advantages
The S71905 CDGA/P4A is a super-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. As a universal matchable single bearing with Extra light preload (Class A), it delivers high running accuracy and minimal heat generation. Its compact design (25mm bore, 42mm OD, 9mm width) provides excellent space utilization while maintaining high rigidity and the ability to handle combined loads. Manufactured to P4A tolerance class, this bearing ensures superior dimensional stability and rotational precision for the most demanding applications.
S71905 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CDGA | 15° contact angle, universal matching design | Optimized for high-speed applications with precise axial positioning capability |
| P4A | Super precision tolerance class | Exceptional running accuracy and dimensional stability |
| Sealed | Integrated sealing system | Contamination protection and long-term lubrication retention |
S71905 CDGA/P4A Bearing Structural Features & Performance Benefits
High-Precision Construction: The bearing features chrome steel rings and balls with a phenolic resin cage, providing excellent dimensional stability and reduced weight for high-speed operation up to 83,000 rpm.
Optimized Load Capacity: With a 15° contact angle and 18 precision balls of 4.762mm diameter, the bearing delivers balanced performance for combined radial and axial loads (1521 lbf dynamic / 900 lbf static rating).
Precision Engineering: The P4A tolerance class ensures minimal runout and vibration, while the universal matching capability (SU) allows for precise bearing arrangements without selective assembly.
Sealed & Lubricated Design: The integrated sealing system combined with factory-applied grease lubrication provides maintenance-free operation across a wide temperature range (-30°C to 110°C).
S71905 CDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding spindles
- Precision Instruments: Measuring equipment and optical positioning systems
- High-Speed Motors: Servo motors and spindle drives requiring minimal runout
- Medical Equipment: Dental handpieces and laboratory instrumentation
- Aerospace Systems: Guidance mechanisms and precision actuation systems
