71801 CDGA/P4
71800 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
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71801 CDGA/P4 Bearing Product Overview & Core Advantages
The 71801 CDGA/P4 is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Manufactured to ABEC 7/P4 tolerance class, this metric bearing features a 12 mm bore and phenolic resin cage optimized for high-speed operation up to 140,000 rpm. Its 15° contact angle and extra light preload (Class A) provide superior axial rigidity while minimizing friction and heat generation. As a universal matchable (SU) bearing, it can be flexibly paired in various arrangements to handle combined radial and axial loads with outstanding running accuracy.
71801 CDGA/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 71801 | Basic designation: 12mm bore, 21mm OD, 5mm width | Compact design for space-constrained applications |
| CD | 15° contact angle with optimized internal geometry | Balanced load capacity for combined loading conditions |
| G | Phenolic resin cage | Reduced friction and superior high-speed performance |
| A | Extra light preload (Class A) | Minimal friction with enhanced positional accuracy |
| /P4 | ABEC 7/P4 tolerance class | Ultra-precision running accuracy and dimensional stability |
Structural Features & Performance Advantages
Precision Engineering: Manufactured to P4 tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional consistency and running accuracy.
High-Speed Capability: The phenolic resin cage and optimized internal geometry enable stable operation at limiting speeds of 140,000 rpm, making it ideal for high-speed spindle applications.
Superior Load Capacity: With a dynamic load rating of 468 lbf and static load rating of 266 lbf, the bearing delivers reliable performance under combined loading conditions.
Thermal Stability: The phenolic cage and chrome steel construction maintain dimensional stability across the operating temperature range of -30°C to 110°C.
Universal Matching: As part of a 3-bearing matched set (SU designation), these bearings can be arranged in back-to-back, face-to-face, or tandem configurations to optimize system rigidity and load distribution.
71801 CDGA/P4 Bearing Typical Application Areas
- High-Speed Machine Tool Spindles: CNC machining centers, grinding spindles, and precision milling applications
- Precision Instrumentation: Measuring equipment, optical scanners, and laboratory instruments
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Aerospace Components: Gyroscopes, navigation systems, and auxiliary power units
- Semiconductor Manufacturing: Wafer handling robots, precision positioning stages, and inspection equipment
