S7005 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7005 CDGA/HCP4A Bearing Product Overview & Core Advantages
The S7005 CDGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered with a 15° contact angle and an Extra Light (Class A) preload, this bearing delivers superior rotational accuracy and rigidity. Its sealed design and P4A tolerance class ensure reliable operation in high-speed and high-precision environments. A key feature is its Universal Matchable (SU) designation, allowing it to be supplied in precision-matched sets of 4 bearings for optimal performance in complex arrangements.
S7005 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CDGA | Specific internal design and preload specification (Extra Light / Class A) | Ensures low starting torque, minimal heat generation, and high running accuracy. |
| HCP4A | High-Precision (P4A) tolerance class with specific cage and material designation | Guarantees extremely tight dimensional and running accuracy for critical applications. |
S7005 CDGA/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: Features ceramic balls and a chrome steel ring, significantly reducing weight and centrifugal forces. This enables higher limiting speeds (83,000 rpm), reduced friction, and extended service life.
- Phenolic Resin Cage: The lightweight and robust phenolic cage provides excellent dimensional stability at high speeds and is suitable for the specified temperature range.
- High Rigidity & Precision: The P4A super-precision tolerance and controlled preload deliver exceptional stiffness and minimal axial/radial runout, which is critical for machine tool spindles.
- Sealed & Grease-Lubricated: The integral seals retain the factory-applied grease lubrication, protecting against contamination and providing maintenance-free operation within the temperature range of -30°C to 110°C.
S7005 CDGA/HCP4A Bearing Typical Application Areas
This bearing is engineered for high-performance machinery where precision, speed, and reliability are paramount. Typical applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Medical Equipment: Dental handpieces and laboratory centrifuges.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and navigation instruments.
