7022 ACD/P4ADBG15
7000 Series Super Precision Angular Contact Ball Bearings
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7022 ACD/P4ADBG15 Bearing Product Overview & Core Advantages
The 7022 ACD/P4ADBG15 is a duplex back-to-back (DB) angular contact ball bearing designed for applications demanding high precision and exceptional rigidity. This P4A tolerance class bearing is preloaded and supplied as a matched set, enabling it to handle significant combined loads—simultaneous radial and axial forces—with superior accuracy and stability. Its compact design and high rigidity make it an ideal choice for high-speed spindles and other precision machinery where minimal deflection under load is critical.
7022 ACD/P4ADBG15 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Basic bearing series, defining the standard boundary dimensions (Bore: 110 mm, Outside Diameter: 170 mm, Width: 56 mm). |
| AC | Angular Contact design with a 25° contact angle, optimized for carrying combined loads. |
| D | Duplex Back-to-Back (DB) arrangement. Two bearings are matched and preloaded to provide high system rigidity. |
| P4A | Indicates a high-precision tolerance class with very tight dimensional and running accuracy limits. |
| DBG15 | Specifies the preload level applied to the matched bearing set, ensuring optimal operational stiffness. |
7022 ACD/P4ADBG15 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a rigid bearing system that effectively resists moment loads. This configuration, combined with the 25° contact angle, provides excellent capability for handling combined radial and axial loads.
Precision & High-Speed Performance: Manufactured to P4A tolerance class standards, this bearing ensures minimal runout and vibration. The lightweight phenolic cage and optimized internal geometry contribute to stable operation at high speeds, with a limiting speed of 10,000 rpm.
Durability & Reliability: Constructed from chrome steel for both rings and balls, the bearing offers high fatigue resistance. It comes pre-lubricated for immediate use and reliable operation within a temperature range of -30°C to 110°C.
7022 ACD/P4ADBG15 Bearing Typical Application Areas
The 7022 ACD/P4ADBG15 is engineered for high-performance applications, including:
- Machine Tool Spindles (e.g., CNC machining centers, grinding spindles)
- High-Speed Precision Spindles
- Industrial Pumps and Compressors
- Precision Robotics and Automation Equipment
