7004 ACD/P4ATGB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7004 ACD/P4ATGB
Basic Information
System of measurement
Metric
Weight
0.2 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
36 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
4005 lbf
Radial static load rating
2745 lbf
Limiting speed
103 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
3
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
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
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7004 ACD/P4ATGB Bearing Product Overview & Core Advantages
The 7004 ACD/P4ATGB is a precision angular contact ball bearing designed for high-performance applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 25° contact angle and Universal Matchable (SU) design enable it to handle combined loads efficiently, making it ideal for arrangements requiring high system rigidity and precise shaft positioning. The phenolic cage and light preload (Class B) contribute to its excellent high-speed performance and smooth operation.
7004 ACD/P4ATGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle |
| P4A | High precision tolerance class for superior dimensional and running accuracy |
| TGB | Pre-lubricated with grease suitable for the specified temperature range |
7004 ACD/P4ATGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and Universal Matchable (SU) configuration allow the bearing to support significant combined radial and axial loads, providing stable and rigid shaft support.
- High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, while the optimized contact angle and light preload enable stable operation at high rotational speeds up to 103,000 rpm.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls on the bore diameter, outside diameter, and width, ensuring consistent high-precision performance in demanding applications.
- Optimized Material Selection: Chrome steel rings and balls provide high hardness and wear resistance, contributing to long service life and reliability.
7004 ACD/P4ATGB Bearing Typical Application Areas
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Drives and Precision Instrumentation
