S71906 CDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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S71906 CDTP/HCP4B Bearing Product Overview & Core Advantages
The S71906 CDTP/HCP4B is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single-row bearing is distinguished by its ceramic balls and P4 (ABEC-7) super-precision tolerance class, ensuring minimal vibration and superior running accuracy. Its core advantages include the ability to handle high combined loads (radial and axial), excellent high-speed capability facilitated by its phenolic cage, and a preloaded design for enhanced rigidity and immediate operational precision. The bearing is pre-lubricated and sealed for long-term, maintenance-free operation.
S71906 CDTP/HCP4B Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| 719 | High-Precision Angular Contact Bearing Series | Denotes a design optimized for high-speed and high-precision applications. |
| 06 | Bore Diameter Code (30 mm) | Specifies the internal diameter of the bearing. |
| C | 15° Contact Angle | Optimized for carrying combined loads with a good balance of radial and axial capacity. |
| DTP | Preload Level (Light) | Ensures shaft rigidity, reduces deflection, and improves rotational accuracy. |
| HC | Hybrid Ceramic (Ceramic Balls, Steel Rings) | Provides higher speed capability, reduced weight, and longer service life due to ceramic's superior properties. |
| P4 | Tolerance Class (ABEC-7) | Guarantees extremely tight dimensional and running accuracy for precision machinery. |
S71906 CDTP/HCP4B Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The use of ceramic balls with steel rings results in lower density, reduced centrifugal forces, and higher stiffness. This directly translates to superior high-speed performance, extended service life, and improved resistance to wear and tear.
- Phenolic Resin Cage: The lightweight and robust phenolic cage offers excellent dimensional stability and guidance at high rotational speeds, contributing to the bearing's high limiting speed of 40,000 rpm.
- 15° Contact Angle & Preload: The specific contact angle is optimized for handling combined loads. The factory-set light preload (DTP) eliminates internal clearance, providing immediate high rigidity, precise shaft positioning, and reduced noise and vibration during operation.
- Sealed & Lubricated Design: As a sealed bearing, it is protected from contaminants. Being pre-lubricated, it is ready for installation and offers long-term, maintenance-free operation within its specified temperature range.
S71906 CDTP/HCP4B Bearing Typical Application Areas
The S71906 CDTP/HCP4B is ideally suited for high-performance applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Robotics: Arm joints and high-accuracy actuators.
- Medical & Dental Equipment: High-speed handpieces, centrifuges.
- Aerospace & Defense Systems: Gyroscopes, navigation instruments.
- High-Frequency Motors & Spindles: PCB drilling spindles, electric motors.
