71815 CDGB/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
71815 CDGB/P4 Bearing Product Overview & Core Advantages
The 71815 CDGB/P4 is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to a P4 tolerance class, it delivers superior running accuracy essential for demanding machinery. Its primary advantage lies in its ability to accommodate combined loads—handling significant radial loads alongside axial loads in one direction. The light preload (Class B) minimizes deflection under operational forces, enhancing system stiffness and positioning accuracy. With a phenolic resin cage and factory-applied lubrication, it is optimized for high-speed operation up to 22,000 rpm, making it an ideal choice for precision spindles and other high-performance rotational systems.
71815 CDGB/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Implication |
|---|---|---|
| 71815 | Basic bearing designation indicating bore diameter (75mm), outside diameter (95mm), and width (10mm) | Defines critical bearing dimensions for proper fit and application |
| C | 15° contact angle design | Optimized for axial load capacity while maintaining good radial performance |
| DGB | Universal Matchable bearing (SU designation) | Can be paired with another identical bearing to form a matched set for increased rigidity and load capacity |
| P4 | High precision tolerance class | Superior dimensional and running accuracy for precision applications |
71815 CDGB/P4 Bearing Structural Features & Performance Benefits
Optimized Contact Geometry: The 15° contact angle provides an ideal balance between radial and axial load capacity, making this bearing suitable for applications experiencing combined loading conditions.
High-Speed Phenolic Cage: The phenolic resin cage offers excellent strength-to-weight ratio and operates effectively at high speeds, contributing to the bearing's limiting speed of 22,000 rpm. This material provides superior guidance and stability under rapid acceleration.
Precision Manufacturing: Manufactured to P4 tolerance standards with tight dimensional controls (bore and OD tolerance: -0.004mm to 0), ensuring minimal runout and vibration for smooth, precise operation in demanding applications.
Universal Matching Capability: As a Universal Matchable (SU) bearing, it can be paired with an identical bearing to create a pre-loaded set, significantly increasing system rigidity and load capacity without additional adjustment requirements.
Chrome Steel Construction: Both rings and balls are manufactured from high-quality chrome steel, providing excellent durability, wear resistance, and consistent performance across the operating temperature range of -30°C to 110°C.
71815 CDGB/P4 Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring exceptional accuracy and rigidity
- High-Speed Machining Centers: Applications demanding rapid rotational speeds and precise positioning
- Precision Instrumentation: Measuring equipment, optical systems, and laboratory instruments requiring minimal vibration
- Robotic Systems Joint actuators and precision positioning mechanisms in industrial robotics
- Medical Equipment: High-speed dental handpieces, surgical tools, and diagnostic imaging systems
- Aerospace Components: Guidance systems, actuators, and auxiliary power units requiring reliable high-speed operation
