7005 CE/P4ADT
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7005 CE/P4ADT
Basic Information
System of measurement
Metric
Weight
0.15 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
25 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.004mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3038 lbf
Radial static load rating
1868 lbf
Limiting speed
85 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
Chrome Steel
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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7005 CE/P4ADT Bearing Product Overview & Core Advantages
The 7005 CE/P4ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This duplex tandem (DT) arrangement bearing set is preloaded and manufactured to P4A tolerance class, ensuring superior running accuracy and minimal vibration. Its primary advantage lies in its ability to handle combined loads (radial and axial) efficiently in one direction, making it ideal for high-speed spindles and precision machinery where maximum rigidity and positional accuracy are critical.
7005 CE/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| C | 15° Contact Angle | Optimized for high axial load capacity while maintaining good radial load performance. |
| E | Reinforced Design | Increased load rating through optimized internal geometry and more/b larger balls. |
| P4A | High Precision Tolerance Class | Exceeds ABEC 7 standards, ensuring extremely tight dimensional and running accuracy for high-speed applications. |
| DT | Duplex Tandem Arrangement | Two bearings mounted in tandem to primarily increase axial load capacity in one direction and system rigidity. |
7005 CE/P4ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex tandem arrangement and reinforced (E) design work in concert to provide exceptional stiffness and significantly increased axial load capacity, making the bearing set resistant to deflection under heavy or variable loads.
- Precision & High-Speed Performance: Manufactured to P4A tolerance class with a phenolic resin cage, this bearing ensures smooth operation, low vibration, and reduced friction, contributing to its high limiting speed of 85,000 rpm. The 15° contact angle is well-suited for high-speed applications.
- Optimized Internal Geometry: The design incorporates a larger ball diameter (6.35 mm) and a specific ball quantity (14) to maximize the dynamic and static load ratings, enhancing the bearing's service life and reliability.
- Preloaded & Ready-to-Mount: Supplied as a preloaded matched set, the bearings are ready for installation, eliminating complex adjustment procedures and ensuring consistent, immediate performance.
7005 CE/P4ADT Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and milling spindles requiring extreme precision and rigidity.
- Precision Robotics: Arm joints and rotary units where high positional accuracy and moment load capacity are essential.
- High-Frequency Motors & Spindles: Applications in PCB drilling, dental handpieces, and small precision motors.
- Medical & Laboratory Equipment: Centrifuges and other high-speed rotary devices demanding quiet, smooth, and reliable operation.
