71916 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
71916 ACD/HCP4A Bearing Product Overview & Core Advantages
The 71916 ACD/HCP4A is a single-row angular contact ball bearing engineered for applications demanding high precision and high-speed operation. Its design is optimized to support significant combined loads (radial and axial) simultaneously, making it ideal for machine tool spindles and other precision rotary systems. Key advantages include its P4 (ABEC-7) tolerance class for exceptional running accuracy, a ceramic ball and phenolic cage construction for reduced weight and superior high-speed performance, and the availability of preload for enhanced system rigidity.
71916 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing series and size designation (80mm bore, 110mm OD, 16mm width). |
| AC | Angular Contact design with a 25° contact angle. |
| D | Signifies a high load carrying capacity internal design. |
| HC | Indicates the use of Hybrid Ceramic balls (Silicon Nitride). |
| P4 | Specifies the P4 (ABEC-7) tolerance class for high precision. |
| A | Denotes that the bearing is supplied with a specific preload. |
71916 ACD/HCP4A Bearing Structural Features & Performance Benefits
High-Speed & High-Rigidity Performance: The combination of a lightweight phenolic resin cage and ceramic balls significantly reduces centrifugal forces, enabling a high limiting speed of 19,000 rpm. The 25° contact angle and availability of preload provide high axial rigidity, which is critical for minimizing deflection in precision spindles.
Superior Load Capacity: The bearing's internal geometry (ACD design) is optimized to handle substantial combined radial and axial loads, with a dynamic load rating of 7762 lbf and a static load rating of 8212 lbf.
Precision & Longevity: Manufactured to P4 tolerance standards, this bearing ensures minimal runout and vibration. The open design is lubricated and, when used in a properly sealed housing, offers reliable performance within a wide operating temperature range of -30°C to 110°C.
71916 ACD/HCP4A Bearing Typical Application Areas
The 71916 ACD/HCP4A is ideally suited for high-performance applications where speed, precision, and rigidity are paramount. Typical uses include:
- Machine Tool Spindles (CNC machining centers, grinding spindles)
- High-Speed Motors and Spindles
- Precision Rotary Tables
- Aerospace & Defense Systems
- Medical & Dental Equipment
