7009 CD/P4ADGB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7009 CD/P4ADGB
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
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
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:
$ 190.17
/ each
In Stock
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7009 CD/P4ADGB Bearing Product Overview & Core Advantages
The 7009 CD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high rigidity. As a universally matchable (SU) bearing supplied in a pre-set pair, it is engineered to accommodate combined loads—simultaneously handling significant radial and axial forces. Its P4A tolerance class ensures ultra-precision operation, making it ideal for high-speed spindles and other critical machinery where high rigidity and minimal runout are paramount. The phenolic cage and optimized 15° contact angle contribute to superior high-speed performance and smooth operation.
7009 CD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
The model number 7009 CD/P4ADGB provides detailed technical specifications through its suffixes:
- 7009: Basic designation indicating a 45mm bore, 75mm OD, and 32mm width.
- C: Denotes a 15° contact angle, optimized for high-speed applications.
- D: Indicates the bearing is part of a universally matchable (SU) pair. Two such bearings can be mounted in any combination (back-to-back, face-to-face, or tandem) to achieve the required rigidity and load capacity.
- P4A: Specifies an ultra-precision tolerance class exceeding ABEC 7 (ISO Class 4), with enhanced running accuracy for spindle applications.
- DGB: Indicates a Light preload (Class B) is applied. This preload eliminates internal clearance, increasing system stiffness and improving rotational accuracy from the moment of installation.
7009 CD/P4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The universal matchable (SU) design allows two bearings to be paired, creating a highly rigid bearing set that effectively manages combined radial and axial loads from both directions.
- Precision High-Speed Operation: The phenolic resin cage offers excellent strength-to-weight ratio and smooth guidance at high speeds, contributing to the high limiting speed of 46,000 rpm. The 15° contact angle is a perfect balance for high-speed and moderate axial load requirements.
- Ultra-Precision: Manufactured to P4A tolerance class, this bearing guarantees minimal dimensional variation and superior running accuracy, which is critical for applications like machine tool spindles.
- Optimized for Performance: The light preload (DGB) ensures zero internal clearance, reducing vibration and noise while enhancing positional accuracy and system response.
7009 CD/P4ADGB Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Applications requiring extreme accuracy and smooth operation.
- High-Frequency Motors and High-Speed Pumps.
- Medical Equipment and Aerospace Instrumentation where reliability and precision are non-negotiable.
