S71907 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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Product Overview and Core Advantages
The S71907 CE/HCP4ADGA is a super-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and high-speed performance. This matched bearing set features a universal (SU) arrangement, allowing for flexible mounting configurations to handle combined loads (radial and axial) simultaneously. Manufactured to ABEC 7/P4A tolerance class, it delivers superior running accuracy and dimensional stability. The combination of a ceramic ball material and phenolic cage enables outstanding high-speed capability and reduced rotational mass, making it ideal for precision spindles and other high-performance machinery.
S71907 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | Series designation for high-precision angular contact ball bearings |
| 1907 | Bore diameter: 35 mm, Outside diameter: 55 mm, Width: 20 mm |
| CE | Contact angle of 15° |
| HC | Hybrid ceramic balls (silicon nitride) |
| P4A | Super precision tolerance class (equivalent to ABEC 7) |
| DGA | Preload level: Extra light (Class A) |
Structural Features and Performance Benefits
Hybrid Ceramic Design: The use of ceramic balls provides significant advantages including reduced centrifugal forces, lower operating temperatures, and extended service life at high speeds. The ceramic material's inherent properties also contribute to electrical insulation and corrosion resistance.
Precision Phenolic Cage: The phenolic resin cage offers excellent strength-to-weight ratio, contributing to lower inertial forces and smoother operation at extreme rotational speeds. This cage material provides good dimensional stability across the operating temperature range (-30°C to 110°C).
Universal Matching Capability: As a universal matchable (SU) bearing set, these bearings can be arranged in various configurations (back-to-back, face-to-face, or tandem) to optimize stiffness and load distribution for specific application requirements.
Super-Precision Manufacturing: The P4A tolerance class ensures minimal runout and vibration, critical for applications demanding high rotational accuracy and smooth operation.
S71907 CE/HCP4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers
- Precision Medical Equipment: Dental handpieces, surgical tools
- Aerospace Systems: Gyroscopes, navigation instruments
- Semiconductor Manufacturing: Wafer handling robots, precision stages
- High-Speed Motors and Spindles: CNC routers, PCB drilling machines
- Test and Measurement Equipment: Coordinate measuring machines, optical instruments
