71905 CE/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
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71905 CE/P4ADGA Bearing Product Overview & Core Advantages
The 71905 CE/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Manufactured to ABEC 7/P4A tolerance class, this bearing delivers superior running precision and dimensional stability. Its 15° contact angle and universal matchable (SU) design enable it to accommodate combined radial and axial loads efficiently. The bearing features an extra light preload (Class A) for minimal friction and optimized high-speed operation, making it ideal for precision spindles and high-rotation equipment requiring high rigidity and minimal thermal expansion.
71905 CE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CE | 15° contact angle, universal matchable design | Enables flexible bearing arrangements and optimal load distribution |
| P4A | ABEC 7/P4A tolerance class | Ensures high running accuracy and dimensional precision |
| DGA | Extra light preload (Class A) | Reduces friction and heat generation for enhanced high-speed capability |
71905 CE/P4ADGA Bearing Structural Features & Performance Benefits
High-Precision Construction: Manufactured from chrome steel with phenolic cage, the bearing maintains dimensional stability under high-speed rotation while providing excellent strength-to-weight ratio.
Optimized Load Capacity: The 15° contact angle and precision-ground raceways enable efficient handling of combined radial and axial loads, with dynamic load rating of 1960 lbf and static load rating of 1260 lbf.
Superior High-Speed Performance: The phenolic cage and optimized internal geometry contribute to a limiting speed of 83,000 rpm, making it suitable for high-rotation applications.
Precision Matching Capability: As a universal matchable (SU) bearing, it can be paired with identical bearings in various configurations (back-to-back, face-to-face, or tandem) to meet specific application requirements.
71905 CE/P4ADGA Bearing Typical Application Areas
- Machine tool spindles - High-precision machining centers and grinding spindles
- High-speed motors - Precision electric motors and servo drives
- Medical equipment - Dental handpieces and surgical tools
- Aerospace components - Gyroscopes and navigation systems
- Precision instruments - Measuring devices and optical equipment
