S7005 ACEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7005 ACEGA/P4A Bearing Product Overview & Core Advantages
The S7005 ACEGA/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. This single bearing features an extra light preload (Class A) and is manufactured to P4A tolerance class for superior running accuracy. Its 25° contact angle is optimized to handle significant combined loads, efficiently supporting both radial and axial forces. The sealed design with phenolic cage makes it suitable for high-speed operation up to 83,000 rpm, offering a compact and robust solution for precision machinery.
S7005 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle |
| EGA | Universal Matchable (SU) bearing, designed for precise matching in pairs |
| P4A | High precision tolerance class exceeding ABEC 7 standards |
S7005 ACEGA/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance class with extremely tight dimensional tolerances (bore: -0.004mm to 0, OD: -0.004mm to 0) ensuring minimal runout and vibration for superior rotational accuracy.
High-Speed Capability: The phenolic resin cage provides excellent dimensional stability and reduced friction at high speeds, contributing to the impressive limiting speed of 83,000 rpm.
Optimized Load Capacity: With a 25° contact angle and 14 chrome steel balls of 6.35mm diameter, this bearing delivers balanced performance for combined radial and axial loads (dynamic: 1784 lbf, static: 878 lbf).
Universal Matching Design: The EGA designation indicates universal matchability, allowing precise pairing of two bearings to achieve optimal preload and stiffness in application.
Sealed & Lubricated: The sealed construction with grease lubrication provides contamination protection and maintenance-free operation within the temperature range of -30°C to 110°C.
S7005 ACEGA/P4A Bearing Typical Application Areas
The S7005 ACEGA/P4A is ideally suited for high-precision applications including:
- Machine Tool Spindles - High-speed machining centers and precision lathes
- Precision Instrumentation - Measuring equipment and laboratory instruments
- High-Speed Motors - Spindle motors and servo drives
- Medical Equipment - Dental handpieces and surgical tools
- Aerospace Components - Guidance systems and precision actuators
