S7000 ACE/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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S7000 ACE/P4A Bearing Product Overview & Core Advantages
The S7000 ACE/P4A is a precision angular contact ball bearing engineered for high-performance applications requiring exceptional accuracy and reliability. This single-row bearing is distinguished by its 25° contact angle and P4 (ABEC-7) tolerance class, enabling it to handle significant combined loads—both radial and axial—simultaneously. Its compact design, with an 8 mm width, makes it ideal for space-constrained, high-speed environments. The bearing comes pre-lubricated and is available with a preload, ensuring immediate operational readiness, high running accuracy, and superior rigidity.
S7000 ACE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7000 | Basic series designation for a high-precision angular contact ball bearing. |
| ACE | A 25° contact angle and enhanced internal design for optimized performance. |
| P4A | Indicates a P4 (ABEC-7) tolerance class and that the bearing is supplied with a preload for high rigidity and precision. |
S7000 ACE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row design with a 25° contact angle and preload provides excellent stiffness and minimal axial/radial runout, which is critical for maintaining precision in demanding applications.
- Superior Load Capacity: Engineered to support combined loads effectively. The radial dynamic load rating of 644 lbf and static load rating of 256 lbf ensure reliable operation under significant stress.
- Optimized High-Speed Performance: The phenolic resin cage reduces centrifugal forces and friction, contributing to a high limiting speed of 83,000 rpm. This makes it an ideal high-speed bearing.
- Sealed and Lubricated for Longevity: As a sealed bearing, it is protected from contaminants. The factory-applied lubrication ensures consistent performance across a wide temperature range of -30°C to 110°C, offering a maintenance-free service life.
- Premium Materials: Manufactured from chrome steel for both rings and balls, ensuring high durability, wear resistance, and consistent performance.
S7000 ACE/P4A Bearing Typical Application Areas
- Machine Tool Spindles
- High-Frequency Spindles
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Robotic Drives and Servo Motors
- Medical and Dental Equipment
- Aerospace Instrumentation