7022 ACDGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7022 ACDGA/P4A Bearing Product Overview & Core Advantages
The 7022 ACDGA/P4A is a single-row angular contact ball bearing engineered for applications demanding exceptional precision and high-speed performance. Manufactured to P4A tolerance class, this bearing guarantees superior running accuracy, making it ideal for high-precision spindles and machinery. Its 25° contact angle is optimized to handle significant axial loads in one direction while supporting radial loads, offering a compact and efficient solution for complex load conditions. The bearing comes pre-lubricated and features a lightweight phenolic cage, contributing to its high limiting speed of 16,250 rpm and excellent operational stability.
7022 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 7022 | Standard bore diameter (110 mm) and series designation | Defines the core bearing dimensions |
| AC | Angular Contact design | Optimized for combined axial and radial loads |
| DGA | Universal Matchable (SU designation) with Extra Light (A) preload | Bearing can be universally matched in sets for optimal stiffness and minimal runout |
| P4A | Tolerance class (geometric tolerances superior to ABEC 7) | Ensures extremely high precision and smooth operation for demanding applications |
7022 ACDGA/P4A Bearing Structural Features & Performance Benefits
High-Precision Design: The P4A tolerance class ensures minimal runout and vibration, which is critical for applications requiring extreme accuracy and surface finish quality.
Optimized Load Capacity: The 25° contact angle and high-grade chrome steel construction provide excellent capacity for combined loads, particularly one-direction axial loads.
Superior High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, while the optimized internal geometry and pre-lubrication enable a high limiting speed of 16,250 rpm.
Universal Matching Capability: Designated as Universal Matchable (SU), these bearings can be supplied in pre-matched sets (typically 3 bearings) to achieve precise preload and maximum system rigidity without selective mounting.
7022 ACDGA/P4A Bearing Typical Application Areas
The 7022 ACDGA/P4A is specifically designed for high-performance machinery where precision, speed, and reliability are paramount. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, high-frequency motor spindles.
- Robotics: High-accuracy robotic arms and joints.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and navigation equipment.
