S7007 CDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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Product Overview and Core Advantages
The S7007 CDTP/HCP4B is a high-precision, double row angular contact ball bearing engineered for applications demanding exceptional accuracy, rigidity, and speed. Its primary advantage lies in its ability to simultaneously support substantial combined loads—both radial and bidirectional axial loads—within a compact cross-section. Manufactured to the exacting P4 (ABEC-7) tolerance class and featuring a ceramic ball and phenolic cage construction, this bearing is the optimal choice for high-reliability, high-performance systems.
S7007 CDTP/HCP4B Bearing Model Code Explained, Specifications & Naming Convention
- S7007: Basic model number for a double row angular contact ball bearing with a 35mm bore.
- C: Denotes a 15° contact angle, optimized for high-speed operation.
- D: Indicates the bearing is supplied with a preload for enhanced rigidity and precise rotational accuracy.
- T: Specifies the cage material as Phenolic, which contributes to lower friction and higher limiting speeds.
- P: Signifies the bearing is Lubricated from the factory.
- HC: Stands for Hybrid Ceramic, indicating the use of ceramic balls with steel rings for superior performance.
- P4: The tolerance class (equivalent to ABEC-7), ensuring ultra-precise running accuracy.
Structural Features and Performance Benefits
High Rigidity and Load Capacity: The double row design and applied preload deliver superior stiffness, minimizing deflection under complex combined loads. This ensures stable and precise shaft positioning.
Superior High-Speed Performance: The combination of lightweight phenolic cage and low-density ceramic balls significantly reduces centrifugal forces, enabling a high limiting speed of 28,000 rpm. The optimized 15° contact angle further enhances high-speed suitability.
Extended Service Life and Reliability: Hybrid ceramic construction offers increased durability, reduced operating temperature, and longer lubricant life. The factory-applied lubrication ensures immediate operation and long-term performance within the specified temperature range.
S7007 CDTP/HCP4B Bearing Typical Application Areas
The S7007 CDTP/HCP4B is ideally suited for high-end applications where precision and speed are critical. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Instrumentation: In medical devices, optical scanners, and coordinate measuring machines.
- High-Frequency Motors and Spindles: Used in PCB drilling and semiconductor manufacturing equipment.
- Aerospace and Defense Systems: In gyroscopes, navigation systems, and other critical rotating assemblies.
