S7002 ACEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S7002 ACEGA/P4A Bearing Product Overview & Core Advantages
The S7002 ACEGA/P4A is a super-precision angular contact ball bearing designed for applications demanding the highest levels of accuracy and performance. As a single bearing with a 25° contact angle and Extra Light (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 exceptional running accuracy, making it ideal for high-speed spindles and other high-reliability precision machinery where minimal runout and vibration are critical.
S7002 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance & Benefit |
|---|---|---|
| S7002 | Super-precision bearing series, 15mm bore | Denotes a bearing from a high-precision series designed for extreme accuracy and speed. |
| AC | 25° Contact Angle | Optimized for high axial load capacity while maintaining good radial load performance. |
| EGA | Extra Light Preload (Class A) | Provides minimal internal clearance for superior rotational accuracy and rigidity, ideal for high-speed operation. |
| P4A | Tolerance Class (Equivalent to ABEC 7) | Guarantees extremely tight dimensional and running accuracy tolerances for precision applications. |
S7002 ACEGA/P4A Bearing Structural Features & Performance Benefits
High-Speed Capability: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and allowing for a limiting speed of 95,000 rpm. This, combined with the optimized internal geometry, makes it a true high-speed bearing.
Exceptional Rigidity and Accuracy: The Extra Light preload eliminates internal clearance, resulting in significantly increased system stiffness and precise shaft positioning, which is critical for machining accuracy.
Superior Load Capacity: The 25° contact angle and high-grade chrome steel construction enable a dynamic load rating of 952 lbf and a static load rating of 412 lbf, providing reliable performance under combined radial and axial loads.
Universal Matching Design (SU): This bearing is universally matchable, meaning any two bearings can be paired together in a set (back-to-back, face-to-face, or tandem) without selective assembly, simplifying inventory and mounting for complex arrangements.
S7002 ACEGA/P4A Bearing Typical Application Areas
The S7002 ACEGA/P4A is the bearing of choice for the most demanding precision applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Rotary Systems: High-frequency spindles for PCB drilling and semiconductor manufacturing.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and navigation instruments.
- Medical Equipment: Dental handpieces and high-speed surgical tools.
