S71915 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71915 CDGA/HCP4A Bearing Product Overview & Core Advantages
The S71915 CDGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This sealed, single bearing is part of a universally matchable (SU) set, enabling precise preload control when paired. Its core advantages include the ability to handle combined loads (radial and axial) efficiently, thanks to a 15° contact angle. Manufactured to a P4A super-precision tolerance class and featuring a phenolic cage with ceramic balls, it is engineered for high-speed operation and offers superior rigidity and long-term reliability in critical machinery.
Model Code Breakdown
- S71915: Basic model number denoting a 75mm bore, 105mm OD, 16mm width angular contact ball bearing.
- CDGA: Combination code indicating Extra light (Class A) preload and a 15° contact angle.
- HC: Denotes the use of a Phenolic (resin) cage, which is lightweight and suitable for high speeds.
- P4A: Specifies the tolerance class, representing super-precision levels with enhanced running accuracy and dimensional stability.
S71915 CDGA/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: Manufactured to P4A super-precision tolerances, this bearing ensures minimal runout and vibration, providing stable and high-rigidity support for spindles and precise shafts.
Superior Load Capacity: The angular contact design with a 15° contact angle is optimized to support significant combined radial and axial loads simultaneously.
Enhanced High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls reduces centrifugal forces, enabling a high limiting speed of 28,000 rpm and lower operating temperatures.
Sealed and Pre-Lubricated: The integral seals protect against contamination and retain grease, offering a maintenance-free solution within the specified temperature range of -30°C to 110°C.
S71915 CDGA/HCP4A Bearing Typical Application Areas
The S71915 CDGA/HCP4A is ideally suited for high-performance applications where precision and speed are critical. Typical uses include:
- Machine Tool Spindles
- High-Frequency Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Advanced Robotics and Automation Equipment
