S7010 CDGA/HCP4A
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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S7010 CDGA/HCP4A Bearing Product Overview & Core Advantages
The S7010 CDGA/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single-row bearing features an Extra Light (A) preload and is manufactured to P4A tolerance class, ensuring superior running accuracy and minimal vibration. Its 15° contact angle is optimized to handle combined loads, effectively supporting both radial and axial forces. The use of ceramic balls and a phenolic cage contributes to its status as a high-speed bearing, capable of reaching limiting speeds of 46,000 rpm, while offering reduced weight and excellent operational stability.
Model Code Breakdown
| Suffix Code | Technical Meaning |
|---|---|
| S7010 | Basic bearing designation, indicating a metric, single-row angular contact ball bearing with a 50mm bore. |
| C | Specifies a 15° contact angle. |
| DGA | Indicates a Universal Matchable (SU) bearing. Two bearings can be mounted in a back-to-back (DB) or face-to-face (DF) arrangement to adjust preload and rigidity. |
| HC | Refers to the Hybrid Ceramic construction, featuring steel rings and ceramic balls (Si3N4). |
| P4A | Denotes a high-precision tolerance class superior to ABEC 7, with very tight dimensional and running accuracy tolerances. |
S7010 CDGA/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and extends bearing life, especially in high-speed applications. Ceramic balls are also electrically insulating and highly resistant to wear.
- Phenolic Resin Cage: The lightweight and robust phenolic cage ensures excellent dimensional stability and low friction at high rotational speeds, contributing directly to the high limiting speed of 46,000 rpm.
- High Precision & Preload: Manufactured to P4A tolerance class with an Extra Light preload (Class A), this bearing provides superior shaft positioning accuracy, high system rigidity, and quiet, smooth operation with minimal runout.
- Optimized Load Capacity: The 15° contact angle enables the bearing to efficiently support combined loads (radial and axial), making it suitable for applications with complex loading conditions.
- Sealed & Greased: The bearing is sealed and pre-lubricated with grease, offering protection from contaminants and providing maintenance-free operation within its specified temperature range of -30°C to 110°C.
S7010 CDGA/HCP4A Bearing Typical Application Areas
The S7010 CDGA/HCP4A is ideally suited for high-performance machinery where precision, high speed, and reliability are critical. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy actuators.
- High-Frequency Motors & Spindles: Motors for CNC machinery and PCB drilling.
- Aerospace & Defense Systems: Gyroscopes, navigation instruments, and auxiliary power units.
- Medical Equipment: Dental handpieces and high-speed centrifuges.
