S7200 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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S7200 CD/HCP4A Bearing Product Overview & Core Advantages
The S7200 CD/HCP4A is a single-row angular contact ball bearing engineered for high-precision and high-speed applications. Its design is optimized to support combined loads, efficiently handling both radial forces and significant axial loads in one direction. Featuring a P4 (ABEC-7) tolerance class and a 15° contact angle, this bearing delivers exceptional running accuracy and rotational stability. The combination of a ceramic ball and phenolic cage contributes to its superior high-speed performance, low friction, and extended service life, making it an ideal choice for demanding, precision machinery.
S7200 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| CD | High Contact Angle & Duplex Design | Optimized for high axial load capacity and rigidity. |
| HC | Hybrid Ceramic (Silicon Nitride Balls) | Reduced weight, lower friction, and higher limiting speed. |
| P4A | ABEC-7 / P4 Precision Class | Guarantees extremely tight dimensional and running accuracy for high-precision spindles. |
| Sealed | Integrated Seals | Protects against contamination and retains lubrication, enhancing reliability. |
| Preload | Preloaded Arrangement | Eliminates internal clearance for maximum system stiffness and precise shaft positioning. |
S7200 CD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to a P4 tolerance class, this bearing ensures minimal runout and vibration. The preloaded configuration provides superior stiffness, which is critical for maintaining accuracy under load.
- Exceptional High-Speed Capability: The hybrid ceramic balls (silicon nitride) are lighter than steel, reducing centrifugal forces, while the phenolic resin cage offers excellent strength and lubrication compatibility. This combination enables a very high limiting speed of 70,000 rpm.
- Optimized Load Capacity: The 15° contact angle is engineered to support significant combined loads, offering a robust dynamic load rating of 1010 lbf and a static load rating of 434 lbf.
- Long-Term Reliability: The sealed design effectively shields the internal components from contaminants. Pre-lubrication and the inherent properties of the ceramic balls contribute to a long, maintenance-free service life within a wide operating temperature range.
S7200 CD/HCP4A Bearing Typical Application Areas
The S7200 CD/HCP4A is ideally suited for high-performance applications requiring precision, speed, and rigidity, such as:
- High-Speed Machine Tool Spindles (e.g., CNC milling, grinding, and drilling)
- Precision Robotics and Automation Arms
- High-Frequency Motors and Spindles
- Medical and Dental Equipment Handpieces
- Aerospace Instrumentation and Guidance Systems
