S7009 FE/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7009 FE/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
18 °
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 FE/P4ADBB Bearing Product Overview & Core Advantages
The S7009 FE/P4ADBB is a precision duplex angular contact ball bearing designed for applications demanding exceptional rigidity and running accuracy. This matched pair in a back-to-back (DB) arrangement is preloaded to deliver superior system stability, making it ideal for handling combined radial and axial loads from both directions. Manufactured to P4A tolerance class, it ensures high rotational precision and is optimized for high-speed operation in demanding industrial environments.
S7009 FE/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7009 | Basic bearing series and size designation (45mm bore, 75mm OD). |
| FE | Indicates the bearing is sealed on both sides, providing robust protection against contamination. |
| P4A | Denotes a high-precision tolerance class superior to ABEC 7, ensuring minimal runout and vibration. |
| DBB | Specifies a Duplex Back-to-Back mounting arrangement. This configuration provides high moment rigidity and is optimal for withstanding overturning moments. |
S7009 FE/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & System Stability: The duplex back-to-back (DB) arrangement with a light preload (Class B) creates a highly rigid bearing system that effectively resists moment loads and shaft deflection, ensuring precise rotational alignment.
- Superior Load Capacity: The 18° contact angle design enables the bearing to efficiently support significant combined loads—both radial and axial loads from either direction.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the sealed design and pre-applied grease lubrication contribute to a high limiting speed of 41,000 rpm, enabling smooth operation at high velocities.
- Long-Term Reliability & Minimal Maintenance: The integral seals (FE) effectively shield the precision-ground chrome steel components from contaminants. Combined with the factory-applied grease, this design offers a long service life with minimal maintenance requirements within the specified temperature range of -30°C to 110°C.
S7009 FE/P4ADBB Bearing Typical Application Areas
This bearing is engineered for high-performance applications where precision, speed, and rigidity are critical. Key sectors include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Gearboxes: Especially in robotics and high-performance automotive systems.
- High-Frequency Spindles: Used in PCB drilling and routing equipment.
- Medical Equipment: In centrifuges and other high-speed diagnostic devices.
