S7007 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7007 CD/HCP4A Bearing Product Overview & Core Advantages
The S7007 CD/HCP4A is a high-precision, single-row angular contact ball bearing engineered for demanding applications. Its primary advantage lies in its ability to accommodate combined loads—simultaneously handling significant radial loads and high unidirectional axial loads. This is achieved through its optimized 15° contact angle and premium material construction. The bearing features a phenolic cage, ceramic balls, and comes pre-lubricated and sealed, making it an ideal, high-rigidity solution for high-speed spindles and other precision machinery requiring exceptional running accuracy and reliability.
S7007 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7007 | Denotes the bearing series and size (35mm bore, 62mm OD, 14mm width). |
| C | Specifies a 15° contact angle, optimized for high-speed operation and moderate axial load capacity. |
| D | Indicates a high preload for maximum stiffness and precise rotational accuracy. |
| HC | Signifies the use of Hybrid Ceramic components (ceramic balls with steel rings). |
| P4 (ABEC-7) | Identifies the ultra-precision tolerance class, ensuring minimal runout and vibration for the highest level of performance. |
| Sealed / Lubricated | The bearing is supplied as a sealed and pre-lubricated unit, protecting against contamination and providing long-term, maintenance-free operation. |
S7007 CD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperatures, and extends service life, especially at very high speeds (up to 28,000 rpm).
- High Rigidity & Preload: The high preload (D) and robust design provide exceptional system stiffness, minimizing deflection under load for superior machining accuracy and positional stability.
- Optimized for Combined Loads: The 15° contact angle is engineered to efficiently support substantial radial loads alongside high unidirectional axial loads, making it versatile for complex loading conditions.
- High-Speed Phenolic Cage: The lightweight and durable phenolic resin cage ensures stable operation at the bearing's limiting speed, contributing to smooth performance and reduced vibration.
- Precision & Reliability: Manufactured to P4 (ABEC-7) tolerance standards, this bearing guarantees exceptional running accuracy, low noise, and high operational reliability.
S7007 CD/HCP4A Bearing Typical Application Areas
The S7007 CD/HCP4A is specifically designed for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling heads.
- Precision Instruments: High-frequency spindles for PCB drilling and precision measuring equipment.
- Turbo Machinery: Compressor shafts and other high-speed rotational systems.
- Robotics: High-accuracy joints and arm assemblies requiring minimal backlash and high stiffness.
