S71911 CDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71911 CDTP/HCP4B Bearing Product Overview & Core Advantages
The S71911 CDTP/HCP4B is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This sealed bearing features a single matched arrangement with preload applied, delivering superior rotational accuracy and system rigidity. Its compact design, utilizing ceramic balls and a phenolic cage, is engineered for high-speed operation and reliable performance under combined radial and axial loads, making it ideal for high-reliability precision machinery.
S71911 CDTP/HCP4B Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| 719 | High-Precision Angular Contact Ball Bearing Series |
| 11 | Bore Diameter Code (55 mm) |
| C | 15° Contact Angle |
| DTP | Matched Bearing Set with Preload |
| HC | Hybrid Ceramic (Silicon Nitride) Balls |
| P4 | ABEC-7 / ISO P4 Tolerance Class |
| B | 72mm Outside Diameter (complementing the 71911 designation) |
S71911 CDTP/HCP4B Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The use of silicon nitride ceramic balls significantly reduces centrifugal forces, lowers operating temperatures, and provides excellent electrical insulation, enabling higher limiting speeds (19,000 rpm) and extended service life.
Optimized Preload & Rigidity: The bearing is supplied with a precise preload, eliminating internal clearance to deliver maximum system stiffness and superior running accuracy, which is critical for high-precision applications.
Phenolic Cage for High-Speed Performance: The lightweight and robust phenolic resin cage ensures stable operation at high speeds, contributing to the bearing's excellent dynamic performance and reliability.
Sealed & Lubricated for Longevity: The integrated seals protect against contamination, and the factory-applied high-performance grease supports operation within a temperature range of -30°C to 110°C, ensuring consistent performance and reducing maintenance needs.
S71911 CDTP/HCP4B Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Applications
- Medical and Dental Equipment Spindles
- High-Frequency Motors and Drives
- Aerospace Actuation Systems
- Semiconductor Manufacturing Equipment
