71901 CE/HCP4ADBC
Hybrid Ceramic Super Precision Bearings
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71901 CE/HCP4ADBC Bearing Product Overview & Core Advantages
The 71901 CE/HCP4ADBC is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This duplex back-to-back (DB) arrangement bearing set delivers superior performance in handling combined loads, including significant radial and bidirectional axial loads. Manufactured to P4A tolerance class and featuring a phenolic cage with ceramic balls, it is engineered for high-speed operation and extended service life in precision machinery.
71901 CE/HCP4ADBC Bearing Model Code Explained, Specifications & Naming Convention
- 71901: Basic designation indicating a light series, 12mm bore angular contact bearing.
- CE: Signifies a 15° contact angle and specific internal design optimizations.
- HC: Denotes the use of Hybrid Ceramic components (ceramic balls with steel rings).
- P4A: Indicates a super-precision tolerance class for exceptional running accuracy.
- DB: Specifies the bearing set is supplied in a Duplex Back-to-Back preloaded arrangement.
- C: Identifies the moderate preload level (Class C) for optimal rigidity.
71901 CE/HCP4ADBC Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back configuration creates a rigid bearing system that effectively resists moment loads and provides stable support for shafts under combined radial and axial loads.
High-Speed Performance: The combination of a lightweight phenolic resin cage and low-density, hard ceramic (Si3N4) balls reduces centrifugal forces, lowers operating temperatures, and enables a high limiting speed of 220,000 rpm.
Precision & Longevity: The P4A super-precision tolerances ensure minimal runout and vibration. Hybrid ceramic construction offers superior wear resistance, reduced thermal expansion, and extended lubricant life compared to all-steel bearings.
Thermal Stability: The phenolic cage and ceramic balls maintain dimensional stability across the specified temperature range (-30°C to 110°C), ensuring consistent performance.
71901 CE/HCP4ADBC Bearing Typical Application Areas
This high-precision bearing is ideally suited for applications where speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- High-Frequency CNC Spindles
- Precision Grinding Machine Spindles
- High-Speed Robotics and Automation Arms
- Aerospace Instrumentation and Gyroscopes
- Medical and Dental Drill Handpieces
- High-Performance Machine Tool Screw Supports
