S7005 ACDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7005 ACDGA/P4A
Basic Information
System of measurement
Metric
Weight
0.079 kg
Tolerance class
P4A
Seal type
Sealed
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
12 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2077 lbf
Radial static load rating
1125 lbf
Limiting speed
83 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
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
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In Stock
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S7005 ACDGA/P4A Bearing Product Overview & Core Advantages
The S7005 ACDGA/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. As a universal matchable (SU) bearing, it can be paired with another identical bearing to create a preloaded set capable of handling combined radial and axial loads in both directions. Its P4A tolerance class ensures ultra-precise running accuracy, while the phenolic cage and sealed design contribute to superior high-speed performance and long-term, maintenance-free operation in compact installations.
S7005 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle. |
| GA | Indicates a specific internal clearance and preload level (Extra light / Class A). |
| P4A | Denotes a super-precision tolerance class, exceeding ABEC 7 standards for exceptional running accuracy. |
S7005 ACDGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The angular contact design and 25° contact angle provide high rigidity, enabling the bearing to effectively support combined loads (radial and axial).
- Superior High-Speed Performance: The lightweight phenolic resin cage ensures stability and low friction at high rotational speeds, contributing to a high limiting speed of 83,000 rpm.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional tolerances on the bore, outside diameter, and width, guaranteeing precise shaft positioning and smooth operation.
- Maintenance-Free Operation: The sealed design retains the factory-applied grease lubrication and protects against contamination, offering long service life without re-lubrication within its specified temperature range (-30°C to 110°C).
S7005 ACDGA/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-precision, high-speed machinery, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Medical and Dental Equipment
- Aerospace Instrumentation
