7026 CD/P4ADBA
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7026 CD/P4ADBA
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
15 °
Ball & Washer Dimensions
Ball diameter
22.225 mm
Ball quantity
21
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
54450 lbf
Radial static load rating
69750 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
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
Price:
$ 984.11
/ each
In Stock
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7026 CD/P4ADBA Bearing Product Overview & Core Advantages
The 7026 CD/P4ADBA is a precision duplex angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement is preloaded to Extra Light (Class A) standards, providing superior system stiffness and minimizing axial and radial runout. Its P4A tolerance class ensures ultra-precision performance, making it ideal for high-speed spindles and other critical machinery where high rigidity and precise shaft positioning are paramount. The bearing is supplied pre-lubricated for immediate operation.
7026 CD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7026 | Basic bearing designation indicating a 130mm bore, 200mm OD, and 66mm width. |
| C | Specifies a 15° contact angle, optimized for carrying combined loads. |
| D | Indicates the bearing is part of a Duplex (matched pair) set. |
| DB | Specifies the Back-to-Back mounting arrangement, which provides high moment rigidity. |
| P4A | Denotes an ultra-precision tolerance class with enhanced running accuracy requirements. |
| A | Specifies the Extra Light preload class applied to the matched set. |
7026 CD/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & System Stability: The duplex back-to-back (DB) arrangement creates a wide effective spread, significantly increasing the bearing system's resistance to moment loads and ensuring exceptional high rigidity for precise shaft guidance.
- Superior Precision: Manufactured to P4A tolerance class with tight dimensional tolerances on bore, outside diameter, and width, this bearing guarantees minimal runout and superior rotational accuracy.
- Optimized for Combined Loads: The 15° contact angle is engineered to efficiently support combined radial and axial loads simultaneously.
- High-Speed Capability: The lightweight phenolic resin cage ensures excellent stability and low friction, contributing to a high limiting speed of 11,000 rpm. The open design facilitates efficient lubrication management.
- Durable Construction: Components made from high-grade chrome steel provide high load capacity and long service life under demanding conditions.
7026 CD/P4ADBA Bearing Typical Application Areas
This precision duplex bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and High-Frequency Motors.
- Industrial Pumps and Compressors requiring high shaft stability.
- Aerospace & Defense positioning systems and rotor assemblies.
- Medical Equipment such as high-speed dental handpieces and imaging scanners.
