7026 ACD/P4ADBC
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7026 ACD/P4ADBC
Basic Information
System of measurement
Metric
Weight
6.47 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
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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7026 ACD/P4ADBC Bearing Product Overview & Core Advantages
The 7026 ACD/P4ADBC is a precision duplex angular contact ball bearing designed for applications requiring exceptional rigidity and accuracy. This back-to-back (DB) matched pair configuration is engineered to handle combined loads, including significant radial and bidirectional axial loads simultaneously. With a P4A tolerance class and a moderate preload (Class C), it delivers superior rotational accuracy, high running stability, and is ideally suited for high-precision, high-reliability machinery where uncompromising performance is critical.
7026 ACD/P4ADBC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| D | Indicates a duplex (two-bearing) set. |
| P4A | Denotes a high-precision tolerance class for enhanced running accuracy. |
| DB | Specifies the Back-to-Back mounting arrangement, which provides high moment rigidity. |
| C | Indicates a Moderate Preload (Class C) for optimal stiffness and reduced deflection. |
7026 ACD/P4ADBC Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a widely spaced load zone, significantly increasing system rigidity and resistance to moment loads, making it ideal for applications demanding high positional accuracy.
- Superior Load Capacity: The 25° contact angle and robust construction enable the bearing to support substantial combined radial and axial loads in both directions.
- Precision & High-Speed Capability: Manufactured to P4A tolerance standards and featuring a lightweight, durable phenolic cage, this bearing ensures smooth operation and is capable of achieving a limiting speed of 11,000 rpm.
- Optimized Material & Lubrication: Components made from chrome steel offer high fatigue life and wear resistance. The bearing is supplied lubricated, ready for initial operation within its specified temperature range of -30°C to 110°C.
7026 ACD/P4ADBC Bearing Typical Application Areas
This bearing is specifically engineered for high-performance applications, including:
- Machine Tool Spindles (e.g., milling, grinding, and turning centers)
- Precision Gearboxes and Drives
- Industrial Pumps and Compressors
- High-Frequency Motors
- Medical and Laboratory Equipment
