S7014 ACD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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S7014 ACD/P4ADGA Bearing Product Overview & Core Advantages
The S7014 ACD/P4ADGA is a super-precision double row angular contact ball bearing engineered for the most demanding applications. Its core advantage lies in its ability to simultaneously handle combined loads (radial and bidirectional axial loads) with exceptional stability and accuracy. Manufactured to P4A tolerance class, this bearing offers superior running accuracy, low noise, and low vibration. The combination of a phenolic cage and premium grease lubrication enables high-speed operation, making it an ideal choice for high-performance spindles and other precision machinery where high rigidity and reliability are paramount.
S7014 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
The model number S7014 ACD/P4ADGA provides detailed technical specifications through its suffixes:
- S7014: Denotes the bearing series and size (70mm bore, 110mm OD).
- A: Indicates a 25° contact angle, optimized for carrying significant axial loads.
- CD: Signifies that the bearing is a Universal Matchable (SU) set. Two bearings are pre-configured to be mounted in a duplex arrangement (back-to-back or face-to-face) to provide precise preload and stiffness.
- P4A: Represents the tolerance class, signifying extremely high precision levels for dimensional and running accuracy.
- DGA: Indicates the bearing is sealed and pre-lubricated with grease, offering protection from contamination and providing long-term, maintenance-free operation.
S7014 ACD/P4ADGA Bearing Structural Features & Performance Benefits
The S7014 ACD/P4ADGA is designed with specific features that deliver distinct performance benefits:
- High Rigidity & Load Capacity: The double row design and Universal Matchable (SU) pairing provide superior high rigidity and stability, effectively managing combined loads and moment loads.
- Super-Precision Performance: Manufactured to P4A tolerance class with a bore and outside diameter tolerance of -0.004mm to 0, ensuring exceptional running accuracy and minimal vibration.
- High-Speed Capability: The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 22,000 rpm, reducing centrifugal forces and friction.
- Durability & Long Service Life: Constructed from chrome steel for both rings and balls, the bearing offers high fatigue resistance. The sealed and pre-greased design protects against contaminants and provides reliable, long-term lubrication within its specified temperature range of -30°C to 110°C.
S7014 ACD/P4ADGA Bearing Typical Application Areas
This high-precision bearing is ideally suited for applications requiring maximum accuracy, speed, and rigidity, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Rotary Tables and Indexing Heads.
- High-Frequency Motors and Spindle Drives.
- Medical Equipment such as dental handpieces and imaging scanners.
- Aerospace & Defense instrumentation and gyroscopes.
