7022 ACD/P4ALTBTA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7022 ACD/P4ALTBTA
Basic Information
System of measurement
Metric
Weight
5.92 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
84 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
50625 lbf
Radial static load rating
69750 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Triplex Back-to-Back (TBT)
Number of bearings in matched set
3
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
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7022 ACD/P4ALTBTA Bearing Product Overview & Core Advantages
The 7022 ACD/P4ALTBTA is a precision angular contact ball bearing designed for the most demanding applications. This triplex matched set in a Back-to-Back (TBT) arrangement delivers exceptional system rigidity and stability. Operating under a P4A tolerance class with an Extra light (Class A) preload, it is engineered for high-precision, high-speed performance. Its primary advantage lies in its ability to handle significant combined loads (radial and axial) simultaneously, making it ideal for spindles requiring maximum accuracy and minimal runout.
7022 ACD/P4ALTBTA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Basic bearing designation: 110 mm bore, 170 mm OD, 84 mm width. |
| ACD | Angular Contact Design with a 25° contact angle for optimal axial load capacity. |
| P4A | High precision tolerance class, superior to ABEC 7/ISO P4, ensuring ultra-precise running accuracy. |
| LT | Indicates Extra light preload (Class A) for minimal friction and optimal high-speed operation. |
| BTA | Specifies the matched arrangement: Triplex Back-to-Back (TBT). This set of three bearings is supplied as a pre-matched unit. |
7022 ACD/P4ALTBTA Bearing Structural Features & Performance Benefits
- Unmatched Rigidity & Stability: The Triplex Back-to-Back (TBT) arrangement of three bearings creates an extremely rigid bearing system, effectively resisting complex moment loads and maintaining shaft positioning under heavy combined loads.
- High-Speed Capability: The combination of the phenolic cage, light preload, and 25° contact angle enables stable operation at high rotational speeds (limiting speed of 10,000 rpm).
- Precision Performance: Manufactured to P4A tolerance class with tight dimensional tolerances on bore, outside diameter, and width, this bearing ensures minimal vibration and superior running accuracy for precision machinery.
- Superior Load Capacity: With a high dynamic load rating of 50,625 lbf and static load rating of 69,750 lbf, the bearing is built to withstand demanding operational conditions.
- Optimized Material Selection: Constructed from chrome steel for rings and balls, providing high durability and wear resistance. The open design allows for customized lubrication schemes.
7022 ACD/P4ALTBTA Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Internal and external grinding machines requiring extreme accuracy.
- High-Frequency Motor Spindles: Applications in PCB drilling and precision engraving.
- Industrial Pumps & Compressors: For high-speed rotor support.
