7022 CD/P4ADBC
7000 Series Super Precision Angular Contact Ball Bearings
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7022 CD/P4ADBC Bearing Product Overview & Core Advantages
The 7022 CD/P4ADBC is a metric precision angular contact ball bearing supplied as a duplex back-to-back (DB) matched set. This configuration is engineered to provide exceptional high rigidity and stability, making it ideal for applications requiring precise shaft positioning and the ability to withstand combined loads (radial and axial loads from both directions). With a P4A tolerance class and a moderate preload (Class C), it delivers superior running accuracy and is optimized for high-speed operation up to 10,000 rpm.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Basic bearing series and size designation (Bore: 110 mm, OD: 170 mm, Width: 56 mm). |
| C | Specifies a 15° contact angle, optimized for high axial load capacity. |
| D | Indicates the bearing is part of a duplex (matched pair) set. |
| P4A | Denotes a high precision tolerance class, exceeding standard ABEC-7 (ISO P4) for superior running accuracy. |
| DB | Specifies the back-to-back mounting arrangement of the matched set. |
| C | Indicates the moderate preload (Class C) applied to the matched set. |
7022 CD/P4ADBC Bearing Structural Features & Performance Benefits
High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists overturning moments, ensuring exceptional shaft stability and positioning accuracy under heavy combined loads.
Superior Load Capacity: The 15° contact angle design enables the bearing to handle significant axial loads in addition to high radial loads (40,050 lbf dynamic, 48,600 lbf static).
Optimized High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, while the precision-ground chrome steel components and P4A tolerance ensure smooth, low-vibration operation at the limiting speed of 10,000 rpm.
Pre-Configured for Performance: The factory-applied moderate preload (C) eliminates internal clearance, enhancing stiffness and rotational accuracy from the moment of installation without requiring complex on-site adjustment.
7022 CD/P4ADBC Bearing Typical Application Areas
The 7022 CD/P4ADBC is designed for high-performance machinery requiring precision, speed, and rigidity. Key applications include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Gearboxes: Especially in industrial robotics and aerospace drive systems.
- High-Frequency Motors and Spindles: Used in PCB drilling and semiconductor manufacturing equipment.
- Medical Equipment: Such as high-speed dental handpieces and imaging device rotors.
- Turbochargers and Compressors: Where high rotational speeds and axial loads are present.
