7026 ACD/P4ATBTA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7026 ACD/P4ATBTA
Basic Information
System of measurement
Metric
Weight
9.7 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
130 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
200 mm
Outside diameter tolerance
-0.004mm to 0
Width
99 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
22.225 mm
Ball quantity
21
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
69075 lbf
Radial static load rating
101250 lbf
Limiting speed
11 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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7026 ACD/P4ATBTA Bearing Product Overview & Core Advantages
The 7026 ACD/P4ATBTA is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This triplex matched set, arranged in a Back-to-Back (TBT) configuration, is engineered to handle combined loads with high stability. Manufactured to the stringent P4A tolerance class, it offers superior running accuracy and is preloaded to Extra Light (Class A) specifications, making it ideal for high-precision, high-rigidity systems where minimal deflection is critical.
7026 ACD/P4ATBTA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7026 | Basic bearing designation indicating a 130 mm bore and 200 mm outside diameter. |
| ACD | Angular Contact design with a 25° contact angle. |
| P4A | Indicates a high-precision tolerance class superior to ABEC 7, ensuring minimal runout and vibration. |
| TBT | Specifies the bearing set as a Triplex Back-to-Back matched arrangement. |
| A | Denotes the Extra Light preload (Class A) for minimal friction and high-speed capability. |
7026 ACD/P4ATBTA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The triplex back-to-back arrangement creates a highly rigid bearing system that effectively resists moment loads and shaft deflection, crucial for maintaining precision under combined loads.
- Superior Load Capacity: The 25° contact angle and robust construction, utilizing chrome steel for rings and balls, provide high radial dynamic and static load ratings (69,075 lbf and 101,250 lbf respectively).
- Optimized High-Speed Performance: The lightweight phenolic cage and extra light preload minimize centrifugal forces and friction, enabling a high limiting speed of 11,000 rpm.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls on the bore diameter, outside diameter, and width, ensuring consistent, high-accuracy performance in the most demanding applications.
7026 ACD/P4ATBTA Bearing Typical Application Areas
This bearing is specifically designed for high-performance machinery where precision, speed, and rigidity are non-negotiable. Key applications include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotic Drives: In articulated arms and high-accuracy positioning systems.
- Aerospace & Defense Systems: In gyroscopes, radar equipment, and other critical navigation components.
- High-Frequency Motors and Spindles: Where low vibration and thermal stability are paramount.
