S71922 ACE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71922 ACE/HCP4ADGA Bearing Product Overview & Core Advantages
The S71922 ACE/HCP4ADGA is a super-precision double row angular contact ball bearing engineered for the most demanding high-performance applications. Its core advantage lies in its ability to simultaneously support combined loads (radial and bidirectional axial loads) with exceptional accuracy and rigidity. Featuring a P4A tolerance class, ceramic balls, and a phenolic cage, it is designed for high-speed operation and superior rotational accuracy, making it an ideal choice for machine tool spindles and other precision equipment where reliability is paramount.
S71922 ACE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
- S7: High-precision bearing series for high-speed applications.
- 1922: Standard size designation (Bore: 110 mm, OD: 150 mm, Width: 40 mm).
- ACE: Specific internal design and contact angle (25°).
- HC: Hybrid Ceramic (Silicon Nitride) balls.
- P4A: Tolerance class superior to ABEC 7, ensuring extremely tight dimensional and running accuracy.
- DGA: Preload designation: Extra light (Class A).
S71922 ACE/HCP4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides significantly higher radial and axial rigidity compared to single row bearings, enabling stable performance under combined loads. The 25° contact angle is optimized for supporting substantial axial loads in both directions.
Superior High-Speed Performance: The combination of lightweight hybrid ceramic balls and a phenolic resin cage reduces centrifugal forces and inertial friction, allowing for a very high limiting speed of 10,000 rpm. This construction minimizes heat generation and power loss.
Precision & Longevity: Manufactured to a P4A tolerance class, this bearing guarantees minimal runout and vibration. The sealed design with grease lubrication protects against contamination and provides long-term, maintenance-free operation within a temperature range of -30°C to 110°C.
Universal Matchability (SU): Bearings are universally matchable, allowing for flexible mounting arrangements (back-to-back, face-to-face, or tandem) in sets of two to achieve the desired preload and stiffness without selective mounting.
S71922 ACE/HCP4ADGA Bearing Typical Application Areas
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Grinding Spindles
- High-Frequency Motors
- Aerospace & Defense Systems
- Medical Equipment (High-speed dental handpieces, imaging systems)
- Robotics (Precision joints and actuators)
