7007 ACDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7007 ACDTP/HCP4B
Basic Information
System of measurement
Metric
Weight
0.13 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.007mm to 0
Width
14 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
16
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3330 lbf
Radial static load rating
2025 lbf
Limiting speed
24 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:
$ 179.1
/ each
In Stock
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7007 ACDTP/HCP4B Bearing Product Overview & Core Advantages
The 7007 ACDTP/HCP4B is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and rigidity. This single-row bearing is distinguished by its 25° contact angle and P4 (ABEC-7) tolerance class, making it ideal for high-speed spindles and precision machinery. Its core advantage lies in its ability to accommodate combined loads (simultaneous radial and axial loads) efficiently. The combination of a phenolic cage and ceramic balls contributes to lower friction, higher limiting speeds, and superior performance in high-temperature environments.
7007 ACDTP/HCP4B Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle, optimized for axial load capacity. |
| DTP | Indicates a specific internal design and preload level for high rigidity and precise running accuracy. |
| HC | Hybrid Ceramic, signifying the use of ceramic balls for reduced weight, lower friction, and higher speed capability. |
| P4 | Denotes a super-precision tolerance grade (ABEC-7), ensuring minimal runout and vibration. |
| B | A modification code, often relating to internal specifications or contact angle. |
7007 ACDTP/HCP4B Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The P4 tolerance class and applied preload ensure minimal deflection under load, providing exceptional shaft positioning accuracy and system stiffness.
- Superior High-Speed Performance: The lightweight phenolic resin cage and ceramic (silicon nitride) balls significantly reduce centrifugal forces, enabling a high limiting speed of 24,000 rpm. This hybrid construction also mitigates heat generation.
- Excellent Load Capacity: The 25° contact angle is optimized to handle significant axial loads in one direction while also supporting substantial radial loads, making it suitable for combined load conditions.
- Extended Service Life and Reliability: Ceramic balls are harder, lighter, and more resistant to wear and corrosion than steel, leading to longer bearing life. The open design allows for effective lubrication management in complex systems.
7007 ACDTP/HCP4B Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications where speed, precision, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and spindle drives requiring high rigidity and accuracy.
- High-Frequency Motors and Spindles: Used in PCB drilling, dental handpieces, and small tool spindles.
- Aerospace and Defense Systems: Gyroscopes, navigation instruments, and auxiliary power units.
