71810 CD/HCP4
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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71810 CD/HCP4 Bearing Product Overview & Core Advantages
The 71810 CD/HCP4 is a single-row angular contact ball bearing engineered for applications demanding high precision and high-speed operation. Its design is optimized to handle significant combined loads (radial and axial) simultaneously, with a 15° contact angle providing excellent axial load capacity. Manufactured to P4 (ABEC-7) tolerance class, it ensures exceptional running accuracy. The use of a phenolic cage and ceramic balls contributes to lower friction, higher limiting speeds, and superior performance in demanding environments. Its compact bearing dimensions (50mm bore, 65mm OD, 7mm width) make it ideal for space-constrained, high-performance assemblies.
71810 CD/HCP4 Bearing Model Code Explained, Specifications & Naming Convention
- 71810: Basic series designation for a high-precision, single-row angular contact ball bearing.
- C: Indicates a 15° nominal contact angle.
- D: Signifies that the bearing is supplied with a preload for enhanced rigidity and rotational accuracy.
- HC: Denotes the use of Hybrid Ceramic components (ceramic balls with steel rings).
- P4: Specifies the tolerance class equivalent to ABEC-7, indicating very high precision.
71810 CD/HCP4 Bearing Structural Features & Performance Benefits
- High-Speed Capability & Reduced Friction: The combination of a lightweight phenolic cage and low-density silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces and friction, enabling a high limiting speed of 36,000 rpm. This hybrid ceramic construction also minimizes heat generation.
- High Rigidity and Precision: The bearing is supplied with a preload, which eliminates internal clearance. This results in greater shaft rigidity, precise rotational accuracy, and improved system dynamic response.
- Superior Load Capacity: The angular contact design efficiently supports combined radial and axial loads. The high-precision grinding and 15° contact angle ensure reliable performance under complex loading conditions.
- Extended Service Life: Ceramic balls are harder and more wear-resistant than steel, offering longer life. They are also electrically insulating and resistant to corrosion, enhancing reliability.
- Wide Temperature Range: Suitable for operation within a temperature range of -30°C to 110°C.
71810 CD/HCP4 Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Aerospace Instrumentation and Control Systems
- Semiconductor Manufacturing Equipment
