S7001 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7001 ACD/P4A Bearing Product Overview & Core Advantages
The S7001 ACD/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and high-speed operation. Its primary advantage lies in its ability to support combined loads—significant radial loads and thrust loads in one direction simultaneously. Manufactured to a P4 (ABEC-7) tolerance class, this bearing ensures exceptional running accuracy, making it ideal for high-reliability and high-rigidity applications where space is limited.
S7001 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
- S7001: Base model number, defining the bearing dimensions (12mm bore, 28mm OD, 8mm width).
- AC: Signifies Angular Contact design with a 25° contact angle.
- D: Indicates a high preload is applied for maximum rigidity.
- P4A: Denotes the tolerance class is P4 (ABEC-7), a super-precision grade.
S7001 ACD/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The combination of a 25° contact angle and a high preload (D) provides exceptional system stiffness and minimizes deflection under load, which is critical for precision machining and positioning.
Superior High-Speed Capability: The lightweight phenolic resin cage reduces centrifugal forces, while the optimized internal geometry contributes to a high limiting speed of 60,000 rpm.
Optimized Load Capacity: Designed to handle combined loads effectively, with a dynamic load rating of 981 lbf and a static load rating of 412 lbf.
Sealed and Lubricated for Life: As a sealed and pre-lubricated unit, the bearing is protected from contamination and is maintenance-free within its specified temperature range of -30°C to 110°C.
S7001 ACD/P4A Bearing Typical Application Areas
The S7001 ACD/P4A is ideally suited for high-performance applications including:
- Machine Tool Spindles
- High-Speed Robotic Drives
- Precision Grinding Spindles
- High-Frequency Motors
- Medical and Dental Handpieces
