7009 CE/HCP4AH1DT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7009 CE/HCP4AH1DT
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
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 Tandem (DT)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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7009 CE/HCP4AH1DT Bearing Product Overview & Core Advantages
The 7009 CE/HCP4AH1DT is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex tandem (DT) arrangement features two preloaded bearings, delivering superior high rigidity and axial load capacity in one direction. Manufactured to an ultra-precise P4A tolerance class and utilizing ceramic balls, it is engineered for high-speed operation, reduced friction, and extended service life in critical machinery.
7009 CE/HCP4AH1DT Bearing Model Code Explained, Specifications & Naming Convention
The model number 7009 CE/HCP4AH1DT provides detailed technical specifications:
- 7009: Basic bearing series, indicating a 45 mm bore, 75 mm OD, and 32 mm width.
- C: Denotes a 15° contact angle, optimized for high-speed applications with combined loads.
- E: Indicates an optimized internal design, often for higher speeds and lower noise.
- HC: Signifies the use of Hybrid Ceramic balls (steel rings with ceramic balls).
- P4A: Represents a very high precision tolerance class, exceeding ABEC 7 standards.
- H1: Specifies a specific preload level for optimal stiffness and rotational accuracy.
- DT: Identifies a Duplex Tandem matched set of two bearings, increasing axial load capacity in one direction.
7009 CE/HCP4AH1DT Bearing Structural Features & Performance Benefits
- High Rigidity & Axial Stiffness: The duplex tandem (DT) arrangement and specified preload (H1) create an exceptionally rigid bearing unit, minimizing deflection under load for superior positional accuracy.
- Enhanced High-Speed Performance: The combination of a 15° contact angle, a lightweight phenolic cage, and hybrid ceramic construction significantly reduces centrifugal forces and operating temperatures, enabling a high limiting speed of 46,000 rpm.
- Superior Load Capacity: As an angular contact bearing, it is designed to handle significant combined (radial and axial) loads, with a dynamic load rating of 4680 lbf.
- Reduced Friction and Long Life: Ceramic balls offer lower thermal expansion, higher hardness, and electrically insulating properties, leading to less wear, longer lubricant life, and increased overall bearing longevity.
- Ultra-Precision: Manufactured to P4A tolerance class with tight dimensional control on bore, OD, and width, ensuring smooth, quiet, and precise operation.
7009 CE/HCP4AH1DT Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications where speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy actuators.
- High-Frequency Spindles: PCB drilling and routing machines.
- Medical Equipment: Dental handpieces and laboratory centrifuges.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and navigation instruments.
