706 CD/P4ADGA
Miniature Super Precision Angular Contact Ball Bearings
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706 CD/P4ADGA Bearing Product Overview & Core Advantages
The 706 CD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As a universal matchable (SU) bearing, it can be paired with another identical bearing in various configurations to optimize performance. Its P4A tolerance class ensures superior dimensional and running accuracy, making it ideal for high-speed operations with a limiting speed of 140,000 rpm. The bearing features an extra light preload (Class A) and a 15° contact angle, providing excellent rigidity and the ability to handle combined radial and axial loads simultaneously. Constructed from chrome steel with a phenolic cage, it offers reliable performance within a temperature range of -30°C to 110°C.
706 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| 706 CD | Basic bearing designation with specific internal design |
| P4A | High precision tolerance class exceeding ABEC 7 standards |
| DGA | Universal matchable bearing (SU designation) for flexible mounting arrangements |
706 CD/P4ADGA Bearing Structural Features & Performance Benefits
High Precision Design: The P4A tolerance class ensures minimal runout and vibration, critical for precision applications. Combined with tight dimensional tolerances on bore, outside diameter, and width, this bearing delivers consistent, accurate performance.
Optimized Load Capacity: With a 15° contact angle and angular contact design, this bearing efficiently handles combined loads (radial and axial loads acting simultaneously). The radial dynamic load rating of 731 lbf and static load rating of 344 lbf provide reliable performance under demanding conditions.
High-Speed Capability: The phenolic cage offers excellent strength-to-weight ratio and smooth operation at high speeds, contributing to the impressive limiting speed of 140,000 rpm. This makes it suitable for high-speed spindle applications.
Universal Matching Flexibility: As a universal matchable (SU) bearing, it can be mounted in various configurations (back-to-back, face-to-face, or tandem) with another identical bearing, allowing for optimized stiffness and load distribution in the application.
Precision Preload: The extra light preload (Class A) minimizes deflection while maintaining smooth operation, enhancing positioning accuracy and system rigidity.
706 CD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision grinding machines
- Precision Instruments - Measuring equipment and optical devices requiring minimal runout
- High-Speed Motors - Servo motors and spindle motors demanding precise rotation
- Medical Equipment - Dental handpieces and laboratory instruments
- Aerospace Components - Guidance systems and auxiliary power units
- Robotics - Joint mechanisms and precision positioning systems
