S7016 ACB/HCP4A
Hybrid Ceramic Super Precision Bearings
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S7016 ACB/HCP4A Bearing Product Overview & Core Advantages
The S7016 ACB/HCP4A is a precision angular contact ball bearing engineered for applications demanding exceptional accuracy and reliability. This single-row bearing is distinguished by its P4 (ABEC-7) tolerance class and is supplied with a preload, ensuring high system rigidity and minimal runout. Its 25° contact angle is optimized to support significant combined loads—handling both radial and axial forces efficiently. The combination of a ceramic ball material and a phenolic cage contributes to superior high-speed performance, reduced weight, and extended service life, making it an ideal solution for high-performance rotational systems.
S7016 ACB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7016 | Basic bearing series and size designation (80mm bore, 125mm OD, 22mm width). |
| ACB | Angular Contact Bearing with a 25° contact angle. |
| HCP4A | Indicates P4 (ABEC-7) tolerance class and that the bearing is supplied with a preload ("A" suffix). |
S7016 ACB/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The single-row design with a 25° contact angle and factory-applied preload provides high axial and radial stiffness, critical for maintaining precision under load. The P4 tolerance ensures extremely tight dimensional control for superior running accuracy.
Enhanced High-Speed Capability: The use of a lightweight phenolic resin cage and ceramic balls significantly reduces centrifugal forces, allowing for a high limiting speed of 15,000 rpm. Ceramic balls also offer superior resistance to wear and thermal expansion.
Superior Load Capacity: Engineered to handle combined loads effectively, with a dynamic load rating of 5648 lbf and a static load rating of 4860 lbf. The angular contact design efficiently manages thrust loads in one direction.
Sealed and Lubricated for Long Life: As a sealed and pre-lubricated unit, the bearing is protected from contamination and is ready for immediate installation, offering long-term, maintenance-free operation within its specified temperature range.
S7016 ACB/HCP4A Bearing Typical Application Areas
The S7016 ACB/HCP4A is ideally suited for high-precision, high-speed machinery where reliability is paramount. Key applications include:
- Machine Tool Spindles: For CNC machining centers, grinders, and lathes requiring high rigidity and running accuracy.
- High-Speed Motors and Spindles: Used in electric motors, PCB drilling spindles, and other applications demanding extreme rotational speeds.
- Precision Instrumentation: Critical components in medical devices, optical scanners, and measuring equipment.
- Aerospace and Robotics: Actuators, gearboxes, and other systems where performance-to-weight ratio and reliability are critical.
