S7004 ACDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7004 ACDGA/P4A
Basic Information
System of measurement
Metric
Weight
0.068 kg
Tolerance class
P4A
Seal type
Sealed
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
12 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
1872 lbf
Radial static load rating
934 lbf
Limiting speed
100.5 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
3
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
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In Stock
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S7004 ACDGA/P4A Bearing Product Overview & Core Advantages
The S7004 ACDGA/P4A is a high-precision double row angular contact ball bearing designed for applications requiring exceptional accuracy and rigidity. This sealed precision bearing features an extra light preload (Class A) and a universal matching (SU) designation, allowing for simplified mounting in multi-bearing arrangements. Its compact design enables it to accommodate combined radial and axial loads simultaneously, making it an ideal solution for high-speed, high-reliability machinery where space is at a premium and operational stability is critical.
S7004 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| ACD | Double Row Angular Contact Design | Enables high rigidity and support for combined loads. |
| GA | Extra Light Preload (Class A) | Minimizes internal clearance for superior running accuracy and reduced vibration. |
| P4A | High Precision Tolerance Class | Guarantees tight dimensional and running accuracy for demanding applications. |
S7004 ACDGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design and 25° contact angle provide exceptional stiffness, enabling the bearing to handle significant combined radial and axial loads with minimal deflection.
- Precision & High-Speed Performance: Manufactured to P4A tolerance class and featuring a lightweight phenolic cage, this bearing ensures smooth operation and is capable of achieving a high limiting speed of 100,500 rpm.
- Sealed & Lubricated for Life: The integral seals retain the factory-applied grease lubrication, protecting against contamination and providing maintenance-free operation within the specified temperature range of -30°C to 110°C.
- Universal Matching (SU): Bearings are universal matchable, simplifying the assembly of preloaded sets (typically in sets of 3) without the need for selective mounting, which reduces installation time and complexity.
S7004 ACDGA/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Medical and Dental Equipment
- High-Speed Pumps and Compressors
