718/9C
Miniature Angular Contact Ball Bearings
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Basic Information
Main Dimensions
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Materials
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718/9C Bearing Product Overview & Core Advantages
The 718/9C represents a high-performance angular contact ball bearing engineered for precision applications requiring exceptional rotational accuracy and reliability. As a metric series bearing with a 9 mm bore, 17 mm outside diameter, and compact 5 mm width, it delivers outstanding high rigidity and dynamic performance. Its fundamental design enables it to accommodate combined loads—simultaneously handling radial forces and substantial axial loads in one direction—making it ideal for demanding, high-speed environments where precision and durability are critical.
718/9C Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 718 | Bearing series designation for high-precision angular contact ball bearings |
| 9 | Bore diameter: 9 mm |
| C | 15° contact angle design, optimized for high-speed operation and axial load capacity |
718/9C Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to ABEC P5/P4 precision classes, ensuring minimal runout and vibration for superior rotational accuracy in demanding applications.
Optimized Contact Angle: The 15° contact angle provides an ideal balance between radial and axial load capacity, making it particularly effective for applications with significant thrust loads.
Advanced Cage Options: Available with nylon or phenolic cages that contribute to reduced friction, lower operating temperatures, and enhanced high-speed performance.
Material Versatility: Offers both steel and ceramic ball options, allowing selection based on specific application requirements for speed, stiffness, or corrosion resistance.
Universal Matching Capability: Designed as Universal Matchable (SU), these bearings can be paired in various configurations (back-to-back, face-to-face, or tandem) to optimize system performance for specific load conditions.
718/9C Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding equipment
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Aerospace Components: Guidance systems, actuators, and instrumentation
- Robotics & Automation: Precision joints, servo motors, and positioning systems
- Semiconductor Manufacturing: Wafer handling equipment and precision positioning stages
- High-Speed Motors: Spindle motors and high-frequency drive systems
