7005 CE/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7005 CE/P4ADGA
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
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
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
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7005 CE/P4ADGA Bearing Product Overview & Core Advantages
The 7005 CE/P4ADGA is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to accommodate combined loads (simultaneous radial and axial forces), this bearing features a 15° contact angle and is supplied as a Universal Matchable (SU) pair, enabling simplified mounting in preloaded arrangements for optimal system stiffness. Manufactured to the stringent P4A tolerance class, it ensures minimal runout and superior performance in high-speed machinery. The phenolic cage and chrome steel construction contribute to its reliability and long service life.
7005 CE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CE | Indicates a Universal Matchable (SU) bearing designed to be paired with another identical bearing to form a preloaded set. |
| P4A | Denotes a high-precision tolerance class with enhanced dimensional and running accuracy specifications beyond ABEC 7. |
| DGA | Specifies a light preload (Extra light / Class A) applied to the bearing pair, ensuring consistent rigidity and minimizing deflection under operational loads. |
7005 CE/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and Universal Matchable (SU) pairing allow the bearing set to handle significant combined loads. The 15° contact angle provides an optimal balance between radial and axial load capacity, while the extra light preload (DGA) eliminates internal clearance, resulting in a very stiff bearing arrangement that resists deflection.
- High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, enabling stable operation at the high limiting speed of 85,000 rpm. The precision-ground chrome steel balls and raceways ensure smooth rotation with minimal vibration.
- Precision Engineering: Manufactured to P4A tolerance class, this bearing guarantees tight control over bore diameter, outside diameter, and width tolerances, which is critical for applications requiring high running accuracy and minimal system vibration.
- Optimized Material Selection: The use of high-grade chrome steel for rings and balls ensures high durability and resistance to wear, suitable for a wide temperature range from -30°C to 110°C.
7005 CE/P4ADGA Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: Providing high rigidity and accuracy for milling, grinding, and turning centers.
- High-Speed Machining Centers: Where exceptional rotational speed and precision are paramount.
- Precision Instrumentation: Used in measuring devices and laboratory equipment requiring minimal runout.
- Robotic Drives and Servo Motors: Delivering reliable performance in dynamic, high-accuracy automation systems.
