S71922 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71922 CDGA/HCP4A Bearing Product Overview & Core Advantages
The S71922 CDGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This sealed bearing features a single, universal matchable design with an extra light preload (Class A), making it ideal for high-speed spindles and precision machinery. Its construction with ceramic balls and a phenolic cage enables superior high-speed performance and reduced rotational mass. The bearing is engineered to handle combined loads efficiently, offering high rigidity and operational reliability in compact installations.
S71922 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Optimized internal design for high speed and high precision. |
| GA | Indicates a specific internal clearance and preload group (Extra Light / Class A). |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls for enhanced speed and durability. |
| P4A | Denotes a super-precision tolerance class, ensuring extremely tight dimensional and running accuracy. |
S71922 CDGA/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of steel rings and ceramic balls (Si3N4) significantly reduces friction and wear, enabling higher limiting speeds and longer service life. The lower density of ceramic balls also minimizes centrifugal forces, a critical factor for high-speed bearings.
Phenolic Resin Cage: The lightweight and robust phenolic cage provides excellent dimensional stability and guidance for the ceramic balls, contributing to smooth operation at high RPMs.
Super-Precision P4A Tolerance: Manufactured to the tightest industry standards, this bearing ensures minimal runout and vibration, which is paramount for applications requiring extreme rotational accuracy.
Sealed & Grease-Lubricated: The integrated seals retain the factory-applied grease lubrication and protect against contaminants, offering a maintenance-free solution within its specified temperature range.
Universal Matching (SU): This bearing is designed to be universally matchable with another identical bearing, allowing for simplified mounting in back-to-back (DB) or face-to-face (DF) arrangements to handle complex combined loads.
S71922 CDGA/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Machines
- High-Frequency Machining Centers
- Dental and Medical Equipment Spindles
- Semiconductor Manufacturing Equipment
- Aerospace Instrumentation
