S7014 ACD/HCP4ADFA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7014 ACD/HCP4ADFA Bearing Product Overview & Core Advantages
The S7014 ACD/HCP4ADFA is a super-precision duplex angular contact ball bearing designed for the most demanding high-performance applications. This metric system bearing features a Face-to-Face (DF) matched arrangement and an Extra light (Class A) preload, delivering exceptional rotational accuracy and system rigidity. Its ability to handle combined loads (radial and axial) simultaneously, combined with a P4A tolerance class and ceramic balls, makes it ideal for machine tool spindles and other high-speed, high-accuracy machinery requiring ultimate performance and reliability.
S7014 ACD/HCP4ADFA Bearing Model Code Explained, Specifications & Naming Convention
- S7014: Basic bearing series, indicating a 70mm bore, 110mm OD, and 40mm width.
- ACD: Angular Contact design with a Duplex (Face-to-Face / DF) matched set.
- HC: Hybrid Ceramic, indicating the balls are made of ceramic material.
- P4A: Precision class 4A, denoting extremely tight dimensional and running accuracy tolerances.
- DF: Duplex arrangement, Face-to-Face mounting.
- A: Denotes Extra light preload class.
S7014 ACD/HCP4ADFA Bearing Structural Features & Performance Benefits
High Rigidity and Stability: The duplex face-to-face (DF) arrangement and Class A preload create a highly rigid bearing system that minimizes deflection under load, ensuring precise shaft positioning and excellent dynamic stiffness.
Superior Load Capacity: With a 25° contact angle and a matched set of two bearings, this configuration is optimized to support significant combined radial and axial loads from both directions.
Enhanced High-Speed Performance: The use of ceramic (Si3N4) balls reduces centrifugal forces, lowers operating temperature, and allows for a higher limiting speed (28,000 rpm). The lightweight phenolic resin cage further contributes to smooth operation at high rotational speeds.
Sealed and Lubricated for Life: The sealed design with pre-applied grease lubrication protects against contamination and provides maintenance-free operation within the specified temperature range of -30°C to 110°C.
S7014 ACD/HCP4ADFA Bearing Typical Application Areas
The S7014 ACD/HCP4ADFA is engineered for high-precision, high-speed applications, including:
- Machine Tool Spindles (CNC machining centers, grinding spindles)
- High-Frequency Motors and Spindles
- Precision Grinding Equipment
- Aerospace and Defense Positioning Systems
- High-Performance Pumps and Compressors
