71952 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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71952 ACD/HCP4A Bearing Product Overview & Core Advantages
The 71952 ACD/HCP4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate primarily axial loads in one direction and combined loads, this bearing features ceramic balls and P4 (ABEC-7) precision tolerance for superior performance in demanding environments. Its optimized contact angle of 25° ensures high axial stiffness and reliable operation under high-speed conditions, making it ideal for precision spindles and high-accuracy machinery.
71952 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71952 | Basic bearing series designation |
| ACD | Angular Contact Design with optimized internal geometry |
| HC | Hybrid Ceramic construction (steel rings with ceramic balls) |
| P4A | P4 precision tolerance class with specific running accuracy requirements |
71952 ACD/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, minimizes heat generation, and extends service life under high-speed operation. This construction also provides excellent electrical insulation properties.
High Precision & Rigidity: Manufactured to P4 (ABEC-7) tolerance class with precise bearing dimensions (260mm bore, 360mm OD, 46mm width), this bearing delivers exceptional running accuracy and dimensional stability for critical applications.
Optimized Internal Geometry: The 25° contact angle and phenolic cage work in synergy to provide superior high-speed performance with a limiting speed of 6,000 rpm, while maintaining precise ball guidance and minimal centrifugal forces.
Preload Capability: Designed to accommodate preload, enabling enhanced system stiffness and reduced vibration in precision spindle applications.
71952 ACD/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- High-Speed Motors: Industrial motors requiring precision and reliability
- Aerospace Systems: Critical rotating components in aircraft systems
- Medical Equipment: High-speed dental handpieces and surgical tools
- Semiconductor Manufacturing: Precision positioning systems and wafer handling equipment
