7206 CD/P4ADBA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7206 CD/P4ADBA
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
15 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
13
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
8932 lbf
Radial static load rating
7200 lbf
Limiting speed
71.5 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
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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7206 CD/P4ADBA Bearing Product Overview & Core Advantages
The 7206 CD/P4ADBA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This duplex back-to-back (DB) matched set is preloaded to Extra Light (Class A) standards, providing superior system stiffness and minimizing axial and radial runout. Its primary advantage lies in its ability to handle combined loads—significant radial loads alongside thrust loads in both directions—making it an ideal choice for high-precision, high-speed spindles and other critical machinery where positional accuracy is paramount.
7206 CD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7206 CD/P4ADBA provides a complete technical description:
- 7206: Basic bearing designation (30mm bore, 62mm OD, Metric series).
- C: Denotes a 15° contact angle, optimized for high-speed operation and moderate axial loads.
- D: Indicates a Duplex configuration (two bearings supplied as a set).
- DB: Specifies the Back-to-Back mounting arrangement, which provides high moment rigidity.
- P4A: Defines the tolerance class. This is a superior precision grade with enhanced running accuracy and dimensional stability.
- Open: The bearing is supplied without seals or shields, allowing for optimal lubrication flow in controlled environments.
- Lubricated: The bearing is pre-greased for immediate operation.
7206 CD/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & System Stability: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists moment loads and shaft deflection, ensuring precise alignment under operational stresses.
- Superior Precision: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and exceptional dimensional consistency, which is critical for applications like machine tool spindles.
- Optimized High-Speed Performance: The 15° contact angle and phenolic resin cage reduce friction and centrifugal forces, enabling a high limiting speed of 71,500 rpm. The open design facilitates efficient lubrication management.
- High Load Capacity: Engineered with chrome steel components and a robust design, it offers a high dynamic load rating of 8932 lbf and a static load rating of 7200 lbf for reliable performance under demanding conditions.
7206 CD/P4ADBA Bearing Typical Application Areas
This bearing is specifically engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles
- High-Frequency Motors
- Industrial Pumps and Compressors
- Medical and Dental Equipment Spindles
- Aerospace Instrumentation
