7206 ACD/P4ADBB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7206 ACD/P4ADBB
Basic Information
System of measurement
Metric
Weight
0.39 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.004mm to 0
Width
32 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
13
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
8482 lbf
Radial static load rating
6862 lbf
Limiting speed
100.5 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
Light / Class B
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:
$ 114.03
/ each
In Stock
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7206 ACD/P4ADBB Bearing Product Overview & Core Advantages
The 7206 ACD/P4ADBB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and high rigidity. This matched back-to-back arrangement (DB) is preloaded to Light / Class B specifications, ensuring optimal stiffness and minimal axial/radial runout. Its primary advantage lies in its ability to handle combined loads (radial and axial) simultaneously with high precision, making it ideal for high-speed spindles and other demanding machinery where stability and accuracy are paramount.
7206 ACD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
The model number 7206 ACD/P4ADBB is decoded as follows:
- 7206: Basic series designation for a metric angular contact ball bearing with a 30mm bore, 62mm OD, and 16mm width.
- A: Denotes a 25° contact angle, optimized for carrying higher axial loads.
- C: Indicates the bearing is manufactured with a phenolic (polyamide) cage.
- D: Specifies that the bearing is part of a duplex (matched pair) set.
- P4A: The tolerance class, signifying very high precision levels for both dimensional and running accuracy, superior to ABEC-7.
- DB: The arrangement code for Back-to-Back mounting. This configuration provides high moment rigidity.
7206 ACD/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists moment loads and shaft deflection, ensuring exceptional operational stability.
- Superior Load Capacity: With a 25° contact angle and a dynamic load rating of 8482 lbf, this bearing is engineered to handle significant combined radial and axial loads.
- High-Speed Performance: The lightweight phenolic cage (C) reduces centrifugal forces, while the P4A precision grade ensures smooth operation, collectively enabling a high limiting speed of 100,500 rpm.
- Precision & Accuracy: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for applications like machine tool spindles.
- Optimized Material: Components made from chrome steel provide high hardness, wear resistance, and a long service life under demanding conditions.
7206 ACD/P4ADBB Bearing Typical Application Areas
This high-precision duplex bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and High-Frequency Motors.
- Industrial Pumps and Compressors requiring high shaft stability.
- Robotic Arms and Automated Positioning Systems.
- Aerospace & Defense instrumentation and control systems.
