7004 ACD/P4ADGC
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7004 ACD/P4ADGC
Basic Information
System of measurement
Metric
Weight
0.14 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
42 mm
Outside diameter tolerance
-0.004mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3038 lbf
Radial static load rating
1834 lbf
Limiting speed
103 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 109.58
/ each
In Stock
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7004 ACD/P4ADGC Bearing Product Overview & Core Advantages
The 7004 ACD/P4ADGC is a precision angular contact ball bearing designed for applications demanding high rotational accuracy and rigidity. Engineered to a P4A tolerance class, it excels in handling combined loads (radial and axial) simultaneously. Its Universal Matchable (SU) designation allows for flexible mounting in preloaded pairs to achieve optimal system stiffness and performance. This bearing is pre-lubricated and features a phenolic cage, contributing to its high-speed capability and reliable operation in demanding industrial environments.
7004 ACD/P4ADGC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| D | Indicates a Moderate preload (Class C) for enhanced rigidity. |
| P4A | Denotes a high-precision tolerance class for superior running accuracy. |
| DGC | Signifies that the bearing is part of a Universal Matchable (SU) pair, supplied as a set of two bearings for simplified mounting and optimal performance. |
7004 ACD/P4ADGC Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The angular contact design and Moderate preload provide excellent resistance to deflection under combined loads, ensuring stable and precise shaft positioning.
- High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, enabling a high limiting speed of 103,000 rpm. This makes it suitable for high-speed spindles and other rapid rotation applications.
- Precision Engineering: Manufactured to P4A tolerance standards, this bearing guarantees minimal runout and vibration, which is critical for applications requiring high rotational accuracy.
- Universal Matching: The SU designation allows any two bearings to be mounted together in a back-to-back, face-to-face, or tandem arrangement without selective matching, simplifying installation and inventory.
7004 ACD/P4ADGC Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision and speed are paramount. Key applications include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Gearboxes
