S71926 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71926 CD/HCP4A Bearing Product Overview & Core Advantages
The S71926 CD/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single-row bearing is distinguished by its ceramic balls and P4 (ABEC-7) tolerance class, ensuring ultra-low noise and vibration levels. Its core advantages include the ability to accommodate high combined loads (both radial and axial), superior high-speed capability facilitated by its phenolic cage, and outstanding operational reliability across a wide temperature range. The combination of a 15° contact angle and available preload makes it ideal for applications demanding high rigidity and rotational accuracy.
Model Code Breakdown
- S7: High-precision bearing series.
- 1926: Standard size designation (Bore: 130mm, OD: 180mm, Width: 24mm).
- C: 15° nominal contact angle.
- D: Signifies a high-precision design with enhanced running accuracy.
- HC: Hybrid Ceramic, indicating ceramic balls and steel rings.
- P4: Tolerance class equivalent to ABEC-7, denoting very high precision.
- A: Indicates specific internal design and preload level for optimal rigidity.
S71926 CD/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Construction: The use of ceramic balls with steel rings reduces weight, minimizes centrifugal forces, and provides superior resistance to wear and electrical erosion, significantly enhancing high-speed performance and service life.
Phenolic Resin Cage: This lightweight and robust cage material contributes to lower friction, excellent acceleration and deceleration characteristics, and stable operation at the bearing's limiting speed.
High Rigidity and Load Capacity: The 15° contact angle and available preload allow this bearing to handle significant combined loads, providing a stiff and precise rotational axis for machinery.
Precision Engineering: Manufactured to a P4 tolerance class with tight dimensional tolerances on the bore, outside diameter, and width, this bearing ensures minimal runout and consistent performance in high-precision assemblies.
S71926 CD/HCP4A Bearing Typical Application Areas
The S71926 CD/HCP4A is ideally suited for high-performance applications where speed, precision, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instruments: Measuring and testing equipment.
- High-Frequency Motors and Spindles: Especially in applications requiring low inertia and high rotational accuracy.
- Aerospace and Defense Systems: Gyroscopes, navigation systems, and other critical components.
