S7015 ACEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7015 ACEGA/P4A Bearing Product Overview & Core Advantages
The S7015 ACEGA/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. As a single-row bearing with a 25° contact angle and Extra Light (Class A) preload, it is engineered to handle combined loads—simultaneously supporting significant radial loads and axial loads in one direction. Its P4A tolerance class ensures superior running accuracy, making it ideal for high-speed spindles and precision machinery. The phenolic cage and sealed design contribute to its high-speed capability and operational stability.
S7015 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
- S7015: Basic model number denoting a 75mm bore and specific dimension series.
- AC: Angular Contact design with a 25° contact angle.
- EGA: Specific internal design and preload designation. E indicates a optimized internal geometry, G signifies a universal matching design, and A denotes Extra Light preload (Class A).
- P4A: Super Precision Tolerance Class, providing extremely tight dimensional and running accuracy limits.
S7015 ACEGA/P4A Bearing Structural Features & Performance Benefits
The performance of the S7015 ACEGA/P4A is derived from its meticulous construction. The single-row design with a 25° contact angle provides excellent rigidity and is optimized for high-speed operation. The phenolic resin cage offers high strength with low weight, reducing centrifugal forces and enabling a limiting speed of 28,000 rpm. The bearing is sealed and pre-lubricated with grease, protecting against contamination and providing long-term, maintenance-free operation within a temperature range of -30°C to 110°C. Manufactured to P4A super precision standards with universal matching capability (SU), it allows for precise duplex arrangements (DB, DF, DT) to achieve even higher system rigidity and accuracy.
S7015 ACEGA/P4A Bearing Typical Application Areas
This high-precision bearing is ideally suited for applications where speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Medical Equipment: Dental handpieces, centrifuges, and imaging scanners.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and flight control actuators.
