S71914 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71914 ACD/HCP4A Bearing Product Overview & Core Advantages
The S71914 ACD/HCP4A is a high-precision single-row angular contact ball bearing engineered for applications demanding exceptional accuracy and reliability. This metric bearing is distinguished by its P4 (ABEC-7) tolerance class, ensuring minimal runout and superior rotational precision. A key feature is its preload availability, which eliminates internal clearance to provide high system rigidity and precise shaft positioning. The combination of a ceramic ball material and a phenolic cage contributes to high-speed capability, reduced weight, and extended service life. It is pre-lubricated and sealed, making it a robust, ready-to-install solution for managing combined radial and axial loads.
S71914 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| S71914 | Denotes the bearing series and size (70mm bore, 100mm OD, 16mm width). |
| ACD | Indicates a 25° contact angle and a specific internal design optimized for high rigidity and load capacity. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride), which reduce friction, weight, and wear, enabling higher limiting speeds. |
| P4A | Specifies the P4 tolerance class (equivalent to ABEC-7), denoting a very high level of dimensional and running accuracy. |
S71914 ACD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row angular contact design, combined with a preload, ensures high axial and radial stiffness, which is critical for minimizing deflection under load and maintaining accuracy in precision machinery.
- Superior Load Capacity: With a 25° contact angle, this bearing is optimized to support significant combined loads (simultaneous radial and axial forces). The ceramic balls enhance load distribution and fatigue life.
- Enhanced High-Speed Performance: The phenolic resin cage is lightweight and possesses excellent slip characteristics, while the hybrid ceramic balls reduce centrifugal forces and friction. This synergy allows the bearing to achieve a high limiting speed of 14,000 rpm.
- Sealed and Lubricated for Longevity: As a sealed and pre-lubricated unit, it is protected from contamination and is effectively maintenance-free within its specified operating temperature range of -30° to 110°C.
S71914 ACD/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles for CNC milling and grinding machines
- High-Frequency Spindles in PCB drilling and routing
- Precision Robotics and automation arms
- High-Speed Motors and turbochargers
- Medical and Dental Equipment such as high-speed handpieces
- Aerospace Instrumentation and control systems
