7009 FE/HCP4AH1DGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7009 FE/HCP4AH1DGA
Basic Information
System of measurement
Metric
Weight
0.45 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
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
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
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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7009 FE/HCP4AH1DGA Bearing Product Overview & Core Advantages
The 7009 FE/HCP4AH1DGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This universal matchable (SU) bearing features an open seal type and is manufactured to P4A super-precision tolerance class. Its core advantage lies in its ability to handle combined radial and axial loads simultaneously with high rigidity and superior running accuracy. The combination of a ceramic ball material and phenolic cage enables outstanding high-speed performance, making it ideal for machine tool spindles and other precision machinery where reliability and longevity are critical.
7009 FE/HCP4AH1DGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| FE | Precision Machined Brass Cage | Enhanced stability and guidance at high speeds |
| HC | Hybrid Ceramic Balls (Silicon Nitride) | Reduced friction, higher speed capability, and longer service life |
| P4A | Super Precision Tolerance Class | Exceptional running accuracy and minimal vibration for high-precision applications |
| H1 | Preload: Extra Light (Class A) | Optimized for high-speed operation with minimal friction and heat generation |
| DGA | Universal Matchable (SU) Design | Can be mounted in tandem, back-to-back, or face-to-face arrangements to handle complex load conditions |
7009 FE/HCP4AH1DGA Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The use of silicon nitride ceramic balls significantly reduces rolling friction and weight, enabling higher limiting speeds (46,000 rpm) and providing non-conductive properties. This material combination also offers superior resistance to wear and thermal expansion.
- Precision Phenolic Cage: The phenolic resin cage provides excellent dimensional stability and guidance at high rotational speeds, contributing to smooth operation and reduced vibration levels.
- Optimized Contact Angle: The 18° contact angle is engineered to provide an optimal balance between radial and axial load capacity, making this bearing highly effective for combined loading scenarios.
- Super-Precision Manufacturing: Manufactured to P4A tolerance class with tight dimensional controls on the 45 mm bore and 75 mm outside diameter, ensuring exceptional running accuracy and system rigidity.
- Universal Matching Capability: As a Universal Matchable (SU) bearing, it can be paired in sets of two to form pre-loaded duplex arrangements, increasing system stiffness and moment load capacity without selective mounting.
7009 FE/HCP4AH1DGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers requiring superior precision and rigidity.
- Precision Robotics: Articulated arms and CNC machinery joints where accuracy and high-speed response are critical.
- Aerospace Systems: Gyroscopes, navigation systems, and auxiliary power units benefiting from hybrid ceramic performance.
- Medical Equipment: Dental handpieces, surgical robots, and high-speed centrifuges requiring reliability and contamination control.
- Semiconductor Manufacturing: Wafer handling robots and precision positioning stages in cleanroom environments.
