S7020 CDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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S7020 CDTP/HCP4B Bearing Product Overview & Core Advantages
The S7020 CDTP/HCP4B is a high-precision, single-row angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. Its core advantage lies in its ability to handle combined radial and axial loads simultaneously, making it ideal for high-speed spindles and precision machinery. The bearing features a P4 (ABEC-7) tolerance class for superior running accuracy, a phenolic resin cage optimized for high-speed operation, and is pre-lubricated for immediate use. Its compact design, combined with ceramic balls, contributes to lower friction, higher limiting speeds, and extended service life, establishing it as a top-tier solution for high-reliability applications.
S7020 CDTP/HCP4B Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7020 | Standard bearing series designation. |
| C | Specifies a 15° contact angle, optimized for high-speed performance and moderate axial load capacity. |
| D | Indicates a high-precision phenolic resin cage, offering low weight and excellent high-speed stability. |
| T | Signifies the bearing is manufactured from ceramic balls (Silicon Nitride), reducing friction, heat generation, and wear. |
| P | Denotes a preload is applied, ensuring high system rigidity and precise shaft positioning. |
| HC | Refers to the specific hybrid ceramic construction (steel rings with ceramic balls). |
| P4 | Specifies the P4 (ABEC-7) tolerance class, indicating ultra-precision dimensional and running accuracy. |
S7020 CDTP/HCP4B Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces and friction, enabling a higher limiting speed (10,000 rpm) and superior performance in high-temperature environments compared to all-steel bearings.
- High Rigidity & Preload: The applied preload eliminates internal clearance, resulting in exceptional system rigidity. This is critical for applications requiring minimal deflection under load, such as machine tool spindles.
- Optimized High-Speed Cage: The phenolic resin cage is lightweight and possesses excellent slip characteristics, contributing to lower vibration, reduced heat generation, and stable operation at high rotational speeds.
- Superior Load Capacity: With a 15° contact angle, this bearing is designed to efficiently support combined loads, offering a robust dynamic load rating of 18,720 lbf and static load rating of 19,125 lbf.
- Sealed & Lubricated Design: The sealed construction protects against contamination, while the factory-applied lubrication ensures immediate, reliable operation, reducing maintenance requirements.
S7020 CDTP/HCP4B Bearing Typical Application Areas
The S7020 CDTP/HCP4B is ideally suited for high-performance applications across various industries, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace & Defense: Gyroscopes, radar systems, and auxiliary power units.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
