7026 ACD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7026 ACD/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
5.33 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
66 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
51525 lbf
Radial static load rating
67500 lbf
Limiting speed
11 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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7026 ACD/HCP4ADGA Bearing Product Overview & Core Advantages
The 7026 ACD/HCP4ADGA is a high-precision double row angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. This universal matchable bearing is designed to accommodate combined loads—significant radial loads and axial loads in both directions—simultaneously. Its extra light preload (Class A) and P4A tolerance class ensure smooth, precise operation with minimal runout. The use of ceramic balls and a phenolic cage contributes to superior high-speed performance, reduced weight, and extended service life, making it an ideal solution for high-rigidity, high-rotation applications.
7026 ACD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7026 | Standard bearing series number, indicating the bearing dimensions (130mm bore, 200mm OD, 66mm width). |
| ACD | Angular Contact, Double Row design. This signifies the bearing's fundamental structure for handling combined loads. |
| HCP4A | Indicates a high-precision bearing with P4A tolerance class and specific internal geometry for optimal performance. |
| DGA | Universal Matchable (SU) designation. This means two bearings are selectively matched as a set to provide precise preload and optimal performance when mounted together. |
7026 ACD/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design provides a rigid support system, significantly increasing the bearing's ability to withstand combined radial and axial loads. The 25° contact angle is optimized for sustaining substantial thrust loads.
- Superior High-Speed Performance: The combination of ceramic balls (silicon nitride) and a lightweight phenolic cage reduces centrifugal forces and inertial mass, enabling a high limiting speed of 11,000 rpm. This setup also minimizes heat generation at high velocities.
- Exceptional Precision: Manufactured to P4A tolerance class with tight dimensional tolerances on the bore, outside diameter, and width, this bearing ensures ultra-precise rotational accuracy and system stability.
- Universal Matchability: As a Universal Matchable (SU) bearing supplied in a matched set of two, it simplifies installation and guarantees consistent, pre-defined preload and running accuracy in the final application.
7026 ACD/HCP4ADGA Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance machinery where speed, accuracy, and rigidity are critical. Key applications include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- High-Frequency Motors and Spindles: Used in CNC machining and PCB drilling equipment.
- Precision Instrumentation: Aerospace gyroscopes, optical scanners, and medical imaging devices.
- Robotics: High-accuracy rotary joints and arm actuators.
