7009 CD/P4ADBB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7009 CD/P4ADBB
Basic Information
System of measurement
Metric
Weight
0.47 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
75 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
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
10530 lbf
Radial static load rating
10125 lbf
Limiting speed
46 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:
$ 183.73
/ each
In Stock
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7009 CD/P4ADBB Bearing Product Overview & Core Advantages
The 7009 CD/P4ADBB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement provides superior stability and can accommodate combined radial and axial loads from both directions. Manufactured to P4A tolerance class and preloaded to Light / Class B, it delivers high running accuracy, reduced vibration, and is ideally suited for high-speed, high-precision spindles and machinery.
7009 CD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
The model number 7009 CD/P4ADBB is decoded as follows:
- 7009: Basic series designation (45 mm bore, 75 mm OD).
- C: Indicates a 15° contact angle, optimized for high-speed operation.
- D: Denotes a duplex bearing (two bearings supplied as a set).
- P4A: Specifies the tolerance class, indicating very high precision for both dimension and running accuracy.
- DB: Defines the matched arrangement as Back-to-Back (DB), which provides high moment rigidity.
- B: Indicates the preload level is Light / Class B.
7009 CD/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 precise shaft positioning.
- Superior Load Capacity: With a 15° contact angle and optimized internal geometry, this bearing is engineered to handle significant combined radial and axial loads simultaneously.
- High-Speed Performance: The lightweight phenolic resin cage and precision-ground chrome steel components contribute to low friction and inertia, enabling a high limiting speed of 46,000 rpm.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls on bore, outside diameter, and width, this bearing guarantees exceptional running accuracy and minimal vibration.
7009 CD/P4ADBB Bearing Typical Application Areas
This high-precision duplex bearing is ideally suited for demanding applications, including:
- Machine Tool Spindles (e.g., CNC machining centers, grinding spindles)
- High-Frequency Motors
- Precision Gearboxes
- Industrial Pumps and Compressors
- Medical and Laboratory Equipment
