S7009 CE/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7009 CE/P4ADBB
Basic Information
System of measurement
Metric
Weight
0.5 kg
Tolerance class
P4A
Seal type
Sealed
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
41 X 1000 rpm
Lubrication
Grease
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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S7009 CE/P4ADBB Bearing Product Overview & Core Advantages
The S7009 CE/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 high stiffness and excellent capability to handle combined loads, including radial forces and bidirectional axial thrust. With a P4A super-precision tolerance class and light preload (Class B), it is engineered for high-speed operation and superior performance in demanding, high-reliability machinery.
S7009 CE/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7009 | Basic bearing series, indicating a 45mm bore, 75mm OD, and 32mm width. |
| CE | Indicates a duplex bearing with a specific internal clearance and preload. |
| P4A | Denotes a super-precision tolerance class, exceeding ABEC 7 standards for minimal runout and vibration. |
| DBB | Specifies the Back-to-Back (DB) matched arrangement, providing high moment rigidity. |
S7009 CE/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) design creates a wide effective spread between load centers, significantly increasing system stiffness and resistance to moment loads.
- Superior Load Capacity: The 15° contact angle and optimized internal geometry enable efficient handling of combined radial and axial loads from both directions.
- High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the precision-ground components contribute to a high limiting speed of 41,000 rpm.
- Precision & Reliability: Manufactured to P4A tolerance class with a light preload, this bearing ensures minimal runout, low noise, and extended service life in precision applications.
- Sealed & Lubricated for Life: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is maintenance-free within its specified temperature range of -30°C to 110°C.
S7009 CE/P4ADBB Bearing Typical Application Areas
This bearing is ideally suited for high-precision, high-speed machinery, including:
- Machine Tool Spindles (milling, grinding, and turning centers)
- High-Frequency Motors and Spindles
- Precision Gearboxes and Drives
- Medical and Laboratory Equipment
- Aerospace Actuation Systems
