7011 ACE/HCP4AH1DT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7011 ACE/HCP4AH1DT
Basic Information
System of measurement
Metric
Weight
0.72 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
90 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
7.938 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
5850 lbf
Radial static load rating
5220 lbf
Limiting speed
34 X 1000 rpm
Lubrication
Lubricated
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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7011 ACE/HCP4AH1DT Bearing Product Overview & Core Advantages
The 7011 ACE/HCP4AH1DT is a precision angular contact ball bearing designed for demanding applications requiring exceptional performance. This duplex tandem (DT) arrangement consists of two matched bearings, preloaded to deliver superior high rigidity and axial load capacity in a single direction. Its construction with a phenolic cage and ceramic balls enables outstanding high-speed performance, making it ideal for high-precision, high-reliability machinery where uncompromising accuracy and stiffness are paramount.
7011 ACE/HCP4AH1DT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| ACE | 25° Contact Angle, Enhanced Design | Optimized for high axial load capacity and high-speed operation. |
| HC | Hybrid Ceramic (Ceramic Balls, Steel Rings) | Reduces friction, increases limiting speed, and provides non-conductive properties. |
| P4A | High Precision Tolerance Class | Guarantees extremely tight running accuracy for applications requiring minimal runout. |
| H1 | Preload Level | Specifies a defined preload for enhanced system rigidity. |
| DT | Duplex Tandem Arrangement | Two bearings mounted in tandem to maximize axial load capacity in one direction. |
7011 ACE/HCP4AH1DT Bearing Structural Features & Performance Benefits
- High Rigidity & Axial Load Capacity: The duplex tandem (DT) arrangement with a specified preload (H1) creates an exceptionally stiff bearing system capable of handling heavy axial loads in one direction, making it superior to single bearings for thrust applications.
- High-Speed Performance: The combination of a lightweight phenolic cage and hybrid ceramic construction (ceramic balls) significantly reduces centrifugal forces and friction, enabling a high limiting speed of 34,000 rpm.
- Precision Operation: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for maintaining accuracy in high-speed spindles.
- Optimized for Combined Loads: The 25° contact angle provides an excellent balance, allowing the bearing to handle combined radial and axial loads effectively.
7011 ACE/HCP4AH1DT Bearing Typical Application Areas
This bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed machining centers and grinding spindles requiring utmost precision and rigidity.
- Precision Grinding Spindles: Applications demanding low vibration and thermal stability.
- High-Frequency Motors: Where high rotational speeds and reliability are essential.
- Aerospace & Defense Systems: Critical components in guidance systems and auxiliary power units.
