7009 CE/P4ADBB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7009 CE/P4ADBB
Basic Information
System of measurement
Metric
Weight
0.48 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
7.144 mm
Ball quantity
21
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
4680 lbf
Radial static load rating
3825 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
In Stock
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7009 CE/P4ADBB Bearing Product Overview & Core Advantages
The 7009 CE/P4ADBB is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This duplex back-to-back (DB) arrangement consists of two matched bearings, preloaded to deliver superior high rigidity and stability under complex load conditions. It excels at simultaneously handling combined radial and axial loads, making it an ideal choice for high-precision spindles and machinery where high-speed performance and operational reliability are paramount. The P4A tolerance class ensures ultra-precise running accuracy.
7009 CE/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
The model number 7009 CE/P4ADBB is decoded as follows:
- 7009: Basic series designation, indicating a 45mm bore, 75mm OD, and 16mm single width.
- C: Denotes a 15° contact angle, optimized for high-speed operation.
- E: Indicates optimized internal design for enhanced load capacity and performance.
- P4A: Specifies a super-precision tolerance class exceeding ABEC 7/ISO P4, with enhanced running accuracy requirements.
- DB: Signifies the bearings are supplied as a Duplex Back-to-Back matched set.
- B: Indicates a Light preload (Class B) is applied to the set.
7009 CE/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a rigid, moment-resistant bearing system, significantly increasing operational stiffness and minimizing shaft deflection under heavy or variable loads.
- Superior Load Capacity: Engineered with a 15° contact angle and optimized internal geometry, this bearing effectively supports significant combined radial and axial loads in both directions.
- High-Speed Capability: The lightweight phenolic resin cage ensures excellent dimensional stability and low friction at high rotational speeds, contributing to the high limiting speed of 46,000 rpm.
- Precision Performance: Manufactured to P4A super-precision tolerances, this bearing guarantees minimal runout and vibration, which is critical for applications requiring extreme rotational accuracy and smooth operation.
- Material Integrity: Constructed from high-grade chrome steel for rings and balls, ensuring long-term durability, wear resistance, and consistent performance.
7009 CE/P4ADBB Bearing Typical Application Areas
This precision bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, engraving machines, and other high-accuracy machining equipment.
- High-Frequency Motors: Spindles for electric motors requiring high rotational speeds and rigidity.
- Medical Equipment: High-speed rotors in dental handpieces and laboratory centrifuges.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other instrumentation requiring ultra-precise rotation.
