71905 CE/HCP4ADGB
Hybrid Ceramic Super Precision 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
71905 CE/HCP4ADGB Bearing Product Overview & Core Advantages
The 71905 CE/HCP4ADGB is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This universal matchable (SU) bearing features a light preload (Class B) and is manufactured to P4A tolerance class for superior running accuracy. Its ceramic ball construction enables outstanding high-speed performance with a limiting speed of 100,500 rpm, while the phenolic cage ensures reliable operation. The bearing is pre-lubricated for immediate use and operates effectively within a temperature range of -30°C to 110°C.
71905 CE/HCP4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71905 | Basic bearing designation (25mm bore, 42mm OD, 18mm width) |
| CE | Contact angle of 15° |
| HC | Hybrid ceramic balls |
| P4A | High precision tolerance class |
| D | Light preload (Class B) |
| GB | Universal matchable (SU) designation |
71905 CE/HCP4ADGB Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls provides superior high-speed capability, reduced friction, and extended service life compared to all-steel bearings.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional tolerances (bore: -0.004mm to 0, OD: -0.004mm to 0) ensuring exceptional running accuracy and minimal vibration.
Optimized Cage Design: The phenolic cage offers excellent strength-to-weight ratio and smooth operation at high rotational speeds, contributing to the bearing's impressive 100,500 rpm limiting speed.
Universal Matchability: As an SU universal matchable bearing, it can be paired with other identical bearings in various configurations (back-to-back, face-to-face, or tandem) without selective matching, simplifying installation and maintenance.
Combined Load Capacity: The 15° contact angle enables efficient handling of combined radial and axial loads, with dynamic load rating of 1960 lbf and static load rating of 1260 lbf.
71905 CE/HCP4ADGB Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles requiring exceptional accuracy and speed
- High-Speed Motors: Servo motors, spindle motors, and other high-RPM electric motors
- Precision Instrumentation: Medical equipment, measuring devices, and laboratory instruments
- Aerospace Components: Guidance systems, actuators, and auxiliary power units
- Semiconductor Manufacturing: Wafer handling robots and precision positioning systems
