7009 ACDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7009 ACDTP/HCP4B
Basic Information
System of measurement
Metric
Weight
0.2 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
75 mm
Outside diameter tolerance
-0.007mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
17
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
6210 lbf
Radial static load rating
4860 lbf
Limiting speed
20 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
Price:
$ 251.73
/ each
In Stock
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7009 ACDTP/HCP4B Bearing Product Overview & Core Advantages
The 7009 ACDTP/HCP4B is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single-row bearing is designed to accommodate high combined loads, primarily thrust loads in one direction, while also supporting significant radial loads. Its P4 (ABEC-7) tolerance class ensures ultra-precise running accuracy, making it ideal for high-speed spindles and precision machinery. The combination of a ceramic ball material and a phenolic cage contributes to its high-speed capability, reduced weight, and excellent operational characteristics.
7009 ACDTP/HCP4B Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7009 | Basic bearing series and size designation (45mm bore, 75mm OD). |
| AC | Angular Contact design with a 25° contact angle. |
| DTP | Indicates a preload is applied to the bearing for enhanced rigidity. |
| HC | Refers to the Hybrid Ceramic construction (steel rings with ceramic balls). |
| P4 | Specifies the P4 (ABEC-7) tolerance class for high precision. |
7009 ACDTP/HCP4B Bearing Structural Features & Performance Benefits
- High-Speed Performance & Rigidity: The 25° contact angle and factory-applied preload (DTP) provide high axial rigidity and precise rotational accuracy, which is critical for machine tool spindles. The phenolic resin cage and hybrid ceramic design (ceramic balls) significantly reduce centrifugal forces, enabling a high limiting speed of 20,000 rpm.
- Superior Load Capacity: Engineered to handle high combined loads, this bearing efficiently manages substantial one-direction thrust loads and radial loads simultaneously, as evidenced by its dynamic (6210 lbf) and static (4860 lbf) load ratings.
- Extended Service Life & Thermal Stability: The ceramic balls are harder, lighter, and offer superior corrosion resistance compared to steel. They also generate less heat and provide better performance across the specified temperature range (-30° to 110 °C). The phenolic cage is lightweight and offers excellent dimensional stability at high speeds.
7009 ACDTP/HCP4B Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and milling machines requiring high speed, rigidity, and accuracy.
- High-Speed Motors and Drives: Used in electric motors, turbomachinery, and other high-RPM systems.
- Precision Robotic Systems: In robot arm joints and gears where high positional accuracy and responsiveness are critical.
- Aerospace and Semiconductor Equipment: For applications demanding reliability, high speeds, and operation in varied temperature environments.
