7022 ACD/P4AQBCA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7022 ACD/P4AQBCA
Basic Information
System of measurement
Metric
Weight
7.89 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
110 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
170 mm
Outside diameter tolerance
-0.004mm to 0
Width
112 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
19.05 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
62100 lbf
Radial static load rating
93375 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Quadruplex Back-to-Back (QBC)
Number of bearings in matched set
4
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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7022 ACD/P4AQBCA Bearing Product Overview & Core Advantages
The 7022 ACD/P4AQBCA is a precision angular contact ball bearing supplied as a Quadruplex Back-to-Back (QBC) matched set. Engineered to the exacting P4A tolerance class, this configuration delivers exceptional high rigidity and stability, making it ideal for applications requiring extreme precision and the capacity to handle complex combined loads. Its extra light preload (Class A) ensures smooth, low-friction operation, optimized for high rotational accuracy in demanding environments.
Model Code Breakdown
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle. |
| P4A | Indicates a high-precision tolerance class with enhanced running accuracy requirements. |
| QBC | Denotes a Quadruplex Back-to-Back matched arrangement of four bearings. |
7022 ACD/P4AQBCA Bearing Structural Features & Performance Benefits
- Superior Rigidity and Load Capacity: The QBC matched set creates an exceptionally stiff bearing system, capable of supporting high combined radial and axial loads from both directions. This is critical for maintaining positional accuracy under heavy or fluctuating loads.
- Precision Engineering: Manufactured to P4A tolerance standards with tight dimensional controls on the bore diameter, outside diameter, and width. This ensures minimal runout and superior rotational accuracy.
- Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, while the 25° contact angle provides an excellent balance for high-speed operation, achieving a limiting speed of 10,000 rpm.
- Durability and Reliability: Constructed from chrome steel for both rings and balls, offering high hardness and fatigue resistance. The bearings are pre-lubricated for immediate use and reliable operation within a temperature range of -30°C to 110°C.
7022 ACD/P4AQBCA Bearing Typical Application Areas
This high-precision, high-rigidity bearing set is specifically designed for the most demanding applications, including:
- Machine Tool Spindles (e.g., for high-speed milling, grinding, and turning centers)
- Precision Gearboxes and High-Frequency Spindles
- Industrial Pumps and Compressors requiring high shaft stability
- Robotic Arm Joints and Rotary Tables in automation
