708 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
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708 CE/HCP4A Bearing Product Overview & Core Advantages
The 708 CE/HCP4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional speed and rigidity. Designed to accommodate combined loads (radial and axial loads in one direction), this bearing features a P4 (ABEC-7) tolerance class for superior running accuracy. Its compact design, with a 15° contact angle, provides high stiffness and is optimized for high-speed operation, making it an ideal solution for demanding, precision machinery where reliability and performance are critical.
708 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 708 | Basic bearing series designation |
| CE | Indicates a 15° contact angle and optimized internal geometry for high-speed performance |
| HC | Refers to the Hybrid Ceramic construction, featuring ceramic balls and steel rings |
| P4 | Specifies the P4 (ABEC-7) tolerance class, denoting ultra-precision manufacturing standards |
| A | Denotes that the bearing is supplied with a specific preload for enhanced rigidity |
708 CE/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, heat generation, and wear. This results in a higher limiting speed (200,000 rpm), extended service life, and improved reliability in high-speed applications.
High Rigidity & Precision: The 15° contact angle and applied preload provide excellent axial and radial stiffness, ensuring precise shaft positioning and minimal deflection under load. The P4 tolerance class guarantees exceptional running accuracy and low vibration.
Optimized for High-Speed Operation: The lightweight phenolic cage ensures stability and low centrifugal forces at ultra-high speeds. The open seal type and factory-applied lubrication are specifically chosen to support the bearing's high-speed capabilities.
Superior Load Capacity: Engineered to handle significant combined loads, with a dynamic load rating of 526 lbf and a static load rating of 180 lbf.
708 CE/HCP4A Bearing Typical Application Areas
The 708 CE/HCP4A is ideally suited for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- Dental and Medical Handpieces
- High-Frequency Motors and Spindles
- Aerospace Actuation Systems
- Semiconductor Manufacturing Equipment
