71906 ACDGC/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
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71906 ACDGC/HCP4A Bearing Product Overview & Core Advantages
The 71906 ACDGC/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and rigidity. This single bearing features a 25° contact angle and is Universal Matchable (SU), allowing it to be paired with a second identical bearing to form a preloaded set for superior stiffness and performance. Its construction with a ceramic ball and phenolic cage contributes to its capabilities as a high-speed bearing, enabling operation at limiting speeds up to 100,500 rpm. This bearing is designed to handle combined loads efficiently, making it an ideal choice for high-reliability, precision machinery.
71906 ACDGC/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
- 71906: Basic series designation, indicating a bearing size with a 30mm bore, 47mm outside diameter, and 9mm width.
- AC: Angular Contact design.
- D: High contact angle (25°).
- GC: Specific internal clearance and preload designation (Moderate / Class C).
- HCP4A: Tolerance class P4A, denoting very high running accuracy and dimensional stability.
71906 ACDGC/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The 25° contact angle and optimized internal geometry provide excellent resistance to combined loads, offering high axial and radial load capacity from a compact bearing size.
- Superior High-Speed Performance: The combination of lightweight ceramic balls and a phenolic resin cage significantly reduces centrifugal forces and friction, enabling stable operation at the high limiting speed of 100,500 rpm.
- Precision and Stability: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring extreme positional accuracy.
- Universal Matching: As a Universal Matchable (SU) bearing, it can be universally paired with another bearing of the same type to create a preloaded arrangement, simplifying inventory and assembly while enhancing system rigidity.
71906 ACDGC/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Aerospace Control Systems
- Medical and Dental Handpieces
