7005 ACEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7005 ACEGA/P4A Bearing Product Overview & Core Advantages
The 7005 ACEGA/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As a single bearing with Universal Matchable (SU) designation, it enables optimized preload configurations when paired. Its P4A tolerance class ensures superior dimensional precision, while the 25° contact angle provides excellent performance under combined radial and axial loads. The phenolic cage and premium chrome steel construction deliver outstanding high-speed capability and durability in demanding operational environments.
7005 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7005 | Basic bearing series with 25mm bore diameter |
| AC | Angular Contact design with 25° contact angle |
| EGA | Extra Light Preload (Class A) |
| P4A | High precision tolerance class |
7005 ACEGA/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance class with bore diameter tolerance of -0.004mm to 0 and outside diameter tolerance of -0.004mm to 0, ensuring exceptional running accuracy and minimal vibration.
High-Speed Performance: The phenolic resin cage combined with optimized bearing dimensions (25mm bore × 47mm OD × 12mm width) enables operation at limiting speeds up to 103,000 rpm, making it ideal for high-speed spindle applications.
Superior Load Capacity: With a radial dynamic load rating of 1784 lbf and radial static load rating of 878 lbf, this bearing effectively handles combined loads while maintaining precision.
Universal Matching Capability: As a Universal Matchable (SU) bearing, it can be precisely paired with another identical bearing to achieve optimal preload and stiffness in matched arrangements.
7005 ACEGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles requiring exceptional accuracy
- High-Speed Motors: Electric motor applications demanding reliable performance at elevated rotational speeds
- Precision Instruments: Measuring equipment and laboratory instruments requiring minimal runout and vibration
- Aerospace Components: Guidance systems and control mechanisms where reliability and precision are critical
- Medical Equipment: High-speed dental handpieces and surgical tools requiring smooth, precise operation
