S71907 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71907 ACE/HCP4A Bearing Product Overview & Core Advantages
The S71907 ACE/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This sealed metric bearing features a single matched arrangement with a 25° contact angle, enabling it to handle combined radial and axial loads simultaneously. Its compact design, utilizing ceramic balls and a phenolic cage, provides superior high-speed capability and operational reliability in precision machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S71907 | Bearing series and size designation (35mm bore, 55mm OD, 10mm width) |
| ACE | 25° contact angle, enhanced internal design |
| HC | Hybrid Ceramic (ceramic balls with steel rings) |
| P4A | ABEC-7/P4 precision tolerance class |
S71907 ACE/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, heat generation, and wear, enabling higher operating speeds and extended service life.
High-Speed Phenolic Cage: The lightweight phenolic cage provides excellent dimensional stability at high rotational speeds, contributing to the bearing's limiting speed of 38,000 rpm.
Precision P4 Tolerance: Manufactured to ABEC-7/P4 tolerance class, this bearing ensures minimal runout and vibration for applications requiring extreme rotational accuracy.
Preloaded Design: The available preload enhances system stiffness and positioning accuracy, making it ideal for precision spindles.
Sealed & Lubricated: The sealed design with factory-applied lubrication protects against contamination and provides maintenance-free operation within the specified temperature range.
S71907 ACE/HCP4A Bearing Typical Application Areas
This high-precision angular contact bearing is specifically designed for applications requiring exceptional speed and accuracy:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- Dental and Medical Equipment
- Aerospace Instrumentation
- Robotic Joints and Actuators
