7022 CD/P4ADBD
7000 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
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7022 CD/P4ADBD Bearing Product Overview & Core Advantages
The 7022 CD/P4ADBD is a premium duplex angular contact ball bearing designed for applications demanding exceptional precision and rigidity. This P4A tolerance class bearing features a back-to-back (DB) matched arrangement and comes with a heavy preload (Class D), making it ideal for machine tool spindles and other high-precision machinery. Its optimized design enables it to handle combined radial and axial loads simultaneously while maintaining superior rotational accuracy and stiffness under demanding operating conditions.
7022 CD/P4ADBD Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Basic bearing designation (Bore: 110 mm, OD: 170 mm, Width: 56 mm) |
| CD | Duplex arrangement: Back-to-Back (DB) configuration |
| P4A | High precision tolerance class (Superior to ABEC 7) |
| DB | Matched set designation for back-to-back mounting |
| Heavy Preload (Class D) | Pre-applied internal load for maximum rigidity and minimal deflection |
7022 CD/P4ADBD Bearing Structural Features & Performance Benefits
Enhanced Rigidity & Stability: The duplex back-to-back arrangement creates a wide effective spread between load centers, significantly increasing system stiffness and moment load capacity. Combined with heavy preload, this configuration minimizes axial and radial play, ensuring precise positioning and vibration damping.
Superior Load Capacity: With a 15° contact angle and optimized internal geometry, this bearing effectively handles combined radial and axial loads. The radial dynamic load rating of 40,050 lbf and static load rating of 48,600 lbf ensure reliable performance under heavy operating conditions.
High-Speed Capability: The phenolic cage provides excellent strength-to-weight ratio and smooth operation at high speeds, supporting a limiting speed of 10,000 rpm. The precision-ground chrome steel balls and raceways minimize friction and heat generation.
Precision Engineering: Manufactured to P4A tolerance class standards with tight dimensional controls (bore and OD tolerance: -0.004mm to 0), this bearing delivers exceptional running accuracy and consistent performance in demanding applications.
7022 CD/P4ADBD Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring maximum rigidity and accuracy
- Precision Gearboxes: Industrial transmission systems demanding high load capacity and rotational precision
- Industrial Pumps & Compressors: Applications requiring reliable performance under combined loads
- Robotics & Automation: Precision positioning systems and robotic arm joints
- Aerospace Components: Flight control systems and auxiliary power units
