7005 ACE/P4BVG275
7000 Series Super Precision Angular Contact Ball Bearings
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7005 ACE/P4BVG275 Bearing Product Overview & Core Advantages
The 7005 ACE/P4BVG275 is a single-row angular contact ball bearing designed for applications requiring high precision and superior rotational accuracy. Engineered to accommodate primarily axial loads in one direction, this bearing features a 25° contact angle and is supplied with a P4 (ABEC-7) tolerance class for exceptional dimensional stability. Its phenolic resin cage and pre-applied lubrication enable reliable performance in high-speed applications up to 42,000 rpm, making it an ideal solution for machine tool spindles and precision equipment where high rigidity and minimal runout are critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7005 | Basic bearing series with 25mm bore diameter |
| ACE | 25° contact angle design with optimized internal geometry |
| P4 | Precision tolerance class equivalent to ABEC-7 |
| BVG275 | Specific internal design and preload specification |
7005 ACE/P4BVG275 Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4 tolerance class with bore diameter tolerance of -0.005mm to 0, ensuring exceptional dimensional accuracy and minimal vibration.
High-Speed Capability: The phenolic resin cage provides excellent strength-to-weight ratio and reduced friction, supporting limiting speeds of 42,000 rpm while maintaining stability.
Optimized Load Capacity: With a 25° contact angle and 14 chrome steel balls of 6.35mm diameter, this bearing delivers radial dynamic load rating of 1784 lbf and efficient axial load transmission.
Thermal Stability: The phenolic cage material and chrome steel construction maintain dimensional stability across the operating temperature range of -30° to 110°C.
7005 ACE/P4BVG275 Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and CNC equipment
- Precision Instrumentation - Measuring devices and optical equipment requiring minimal runout
- High-Speed Motors - Servo motors and spindle drives demanding exceptional rotational accuracy
- Medical Equipment - Dental handpieces and laboratory instrumentation
- Aerospace Components - Guidance systems and auxiliary power units
