S7005 ACE/HCP4ADGB
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7005 ACE/HCP4ADGB
Basic Information
System of measurement
Metric
Weight
0.14 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
24 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
2858 lbf
Radial static load rating
1755 lbf
Limiting speed
83 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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S7005 ACE/HCP4ADGB Bearing Product Overview & Core Advantages
The S7005 ACE/HCP4ADGB is a high-precision, double row angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. Engineered to simultaneously handle combined radial and axial loads from both directions, its compact design offers a space-saving solution. Featuring a P4A super-precision tolerance class, ceramic balls, and a phenolic cage, this bearing is optimized for high-speed operation and superior rigidity, making it ideal for high-performance spindles and precision machinery.
S7005 ACE/HCP4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACE | 25° Contact Angle, High Precision | Optimized for high axial load capacity and rigidity. |
| HC | Hybrid Ceramic (Silicon Nitride Balls) | Reduced friction, higher speed capability, and longer service life. |
| P4A | Super Precision Tolerance Class | Ensures extreme running accuracy for applications like machine tool spindles. |
| DGB | Universal Matchable (SU) Arrangement, Light Preload (Class B) | Bearings are supplied in a matched set of 2, ready for installation in a universal (face-to-face or back-to-back) configuration to provide precise preload and optimal stiffness. |
S7005 ACE/HCP4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design and 25° contact angle provide significantly increased radial and axial rigidity compared to single row bearings, enabling stable performance under combined loads.
- Superior High-Speed Performance: The combination of hybrid ceramic balls (lighter than steel, reducing centrifugal force) and a phenolic resin cage allows for a very high limiting speed of 83,000 rpm, minimizing friction and heat generation.
- Precision & Longevity: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration. The sealed design with pre-applied grease protects against contamination, offering a maintenance-free, long service life within a temperature range of -30°C to 110°C.
S7005 ACE/HCP4ADGB Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where precision, speed, and reliability are critical. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring devices and laboratory equipment.
- High-Speed Motors and Drives: Where low friction and high rotational accuracy are required.
- Medical Equipment: Dental handpieces and surgical tools.
