S7016 CB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7016 CB/HCP4A Bearing Product Overview & Core Advantages
The S7016 CB/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional speed, rigidity, and accuracy. As a single-row bearing with a 15° contact angle, it is optimized to handle combined radial and axial loads simultaneously. Its defining features include a P4 (ABEC-7) tolerance class for superior running accuracy, a phenolic resin cage for high-speed capability, and ceramic balls that reduce centrifugal forces and enable higher limiting speeds. This bearing is preloaded and pre-lubricated, making it a ready-to-install, high-performance solution for high-rigidity and high-speed spindle systems.
S7016 CB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Advantage |
|---|---|---|
| S7016 | Standard bearing series designation (80mm bore, 125mm OD, 22mm width) | Defines the core bearing dimensions. |
| CB | Specific internal clearance and preload designation | Ensures optimal internal fit for high rigidity and precise operation. |
| HC | Hybrid Ceramic (Ceramic balls with steel rings) | Enables higher speeds, reduces weight and heat generation, and increases service life. |
| P4 | Tolerance class equivalent to ABEC-7 | Guarantees ultra-precision and minimal runout for critical applications. |
| A | 30° contact angle (Note: Specification states 15°, this suffix may indicate a specific internal design variant) | Optimized for specific load conditions and stiffness requirements. |
S7016 CB/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic (Si3N4) balls significantly reduces centrifugal loading, lowers operating temperature, and provides excellent electrical insulation, contributing directly to the high limiting speed of 17,000 rpm.
- Phenolic Resin Cage (Retainer): This lightweight and robust cage material offers superior guidance and stability at high rotational speeds, ensuring smooth operation and extended service life.
- Sealed & Pre-lubricated Design: The integral seals protect against contamination and retain lubricant, making the bearing maintenance-free for its entire service life within the specified temperature range of -30°C to 110°C.
- P4 Super-Precision: Manufactured to the strictest dimensional and running accuracy tolerances, this bearing ensures minimal vibration and high positional accuracy, which is critical for precision machining and instrumentation.
- High Load Capacity: With a dynamic load rating of 5962 lbf and a static load rating of 5130 lbf, it provides reliable performance under significant combined loads.
S7016 CB/HCP4A Bearing Typical Application Areas
The S7016 CB/HCP4A is ideally suited for high-performance machinery where speed, precision, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed CNC milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing spindles.
- High-Frequency Motors: Spindles for electric motors and generators operating at very high RPMs.
- Robotics: High-accuracy joints and arm linkages.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other critical instrumentation.
