S7013 ACE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7013 ACE/HCP4ADT
Basic Information
System of measurement
Metric
Weight
0.82 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
65 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
100 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
8.731 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
7020 lbf
Radial static load rating
6525 lbf
Limiting speed
31 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Tandem (DT)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
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
Price available upon request.
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S7013 ACE/HCP4ADT Bearing Product Overview & Core Advantages
The S7013 ACE/HCP4ADT is a high-precision duplex tandem angular contact ball bearing designed for demanding applications requiring exceptional rigidity and speed capabilities. This matched set bearing features a 25° contact angle and is preloaded for immediate, high-stability operation. Its construction with ceramic balls and a phenolic cage enables superior high-speed performance and reduced rotational mass. The bearing is sealed and pre-lubricated, offering a maintenance-free solution ideal for high-precision spindles and other critical machinery where uncompromising accuracy and reliability are paramount.
S7013 ACE/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| S7013 | Basic bearing designation, indicating a 65mm bore, 100mm OD, and 36mm width. |
| ACE | Signifies a 25° contact angle and specific internal design optimizations. |
| HC | Indicates the use of Hybrid Ceramic balls (Silicon Nitride). |
| P4A | Denotes an ultra-precision tolerance class (superior to ABEC 7/P4), ensuring minimal runout and vibration. |
| DT | Specifies a Duplex Tandem arrangement, where two bearings are matched to share axial loads in the same direction, increasing axial rigidity and capacity. |
S7013 ACE/HCP4ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex tandem (DT) arrangement and 25° contact angle provide superior axial and radial stiffness, enabling the bearing to handle significant combined loads with minimal deflection.
- Superior High-Speed Performance: The combination of lightweight ceramic balls and a phenolic resin cage reduces centrifugal forces and inertial mass, allowing for a high limiting speed of 31,000 rpm. This design minimizes heat generation and ensures stable operation at high velocities.
- Ultra-Precision Operation: Manufactured to P4A tolerance class, this bearing guarantees extremely tight dimensional and running accuracy, which is critical for applications requiring high rotational precision and low vibration.
- Long-Term Reliability & Maintenance-Free: The integral seals protect against contamination, and the factory-applied grease lubrication is sufficient for the bearing's specified temperature range (-30°C to 110°C), ensuring long service life without re-lubrication.
S7013 ACE/HCP4ADT Bearing Typical Application Areas
This bearing is engineered for the most demanding high-speed and high-precision machinery, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Applications requiring extreme accuracy and surface finish quality.
- High-Frequency Motors and Spindles: Where minimal runout and high rotational speeds are critical.
- Advanced Aerospace and Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
