S71907 ACB/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71907 ACB/HCP4ADGA Bearing Product Overview & Core Advantages
The S71907 ACB/HCP4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This double row angular contact ball bearing excels at simultaneously handling combined loads, including radial loads and bidirectional axial loads, thanks to its 25° contact angle. Manufactured to P4A tolerance class, it offers superior running accuracy and high system rigidity. Its compact design, featuring ceramic balls and a phenolic cage, makes it an ideal solution for high-speed operation and high-reliability scenarios where precision is paramount.
S71907 ACB/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
- S: Super-precision bearing series
- 7: Angular contact ball bearing type
- 1907: Dimension series (19: width series, 07: bore diameter code for 35mm)
- ACB: 25° contact angle, universal matchable design
- HCP4A: P4A tolerance class (higher than ABEC 7), high precision grade
- DGA: Sealed on both sides, pre-lubricated with grease
S71907 ACB/HCP4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior radial and axial stiffness, enabling the bearing to support significant combined loads from multiple directions. The 25° contact angle is optimized for handling substantial bidirectional axial loads.
High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage allows for a very high limiting speed of 56,000 rpm. This construction minimizes friction and heat generation at high velocities.
Precision & Longevity: Manufactured to P4A tolerance class with a bore and outside diameter tolerance of -0.004mm to 0, this bearing ensures exceptional running accuracy and minimal vibration. The sealed design with pre-applied grease offers a maintenance-free solution with a wide operating temperature range from -30°C to 110°C.
S71907 ACB/HCP4ADGA Bearing Typical Application Areas
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Aerospace Actuation Systems
- Medical and Laboratory Instruments
