7011 ACE/HCP4ADGB
Hybrid Ceramic Super Precision Bearings
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7011 ACE/HCP4ADGB Bearing Product Overview & Core Advantages
The 7011 ACE/HCP4ADGB is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This universal matchable (SU) bearing features a 25° contact angle and light preload (Class B), making it ideal for arrangements requiring precise axial positioning and minimal deflection. Its ceramic balls and P4A tolerance class ensure superior running accuracy, low heat generation, and extended service life in high-speed applications. The open design allows for customized lubrication schemes, providing flexibility for various operational environments.
7011 ACE/HCP4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7011 | Basic bearing designation indicating 55 mm bore diameter, 90 mm outside diameter, and 36 mm width |
| ACE | Angular Contact design with 25° contact angle and optimized internal geometry |
| HC | Hybrid Ceramic construction featuring ceramic balls and steel rings |
| P4A | High-precision tolerance class with tight dimensional and running accuracy requirements |
| DGB | Universal Matchable (SU) designation allowing for flexible bearing arrangements in pairs |
7011 ACE/HCP4ADGB Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, minimizes heat generation, and provides excellent electrical insulation properties. This construction enables higher limiting speeds (34,000 rpm) and extended service life compared to all-steel bearings.
Precision Engineering: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional running accuracy and consistent performance in precision applications.
Optimized Internal Geometry: The 25° contact angle and light preload (Class B) provide excellent stiffness and precise axial positioning capability, making it suitable for applications requiring minimal deflection under combined loads.
Advanced Cage Design: The phenolic cage offers excellent strength-to-weight ratio, reduced friction, and compatibility with high-speed operation, contributing to the bearing's high-speed performance.
Universal Matchability: As an SU-type universal matchable bearing, it can be paired in various configurations (back-to-back, face-to-face, or tandem) to accommodate different load conditions and stiffness requirements.
7011 ACE/HCP4ADGB Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding applications
- Industrial Pumps & Compressors: Where high-speed operation and reliability are critical
- Precision Instruments: Medical equipment, measuring devices, and laboratory instruments
- Aerospace Components: Actuators, control systems, and auxiliary power units
- Robotics & Automation: High-precision joints and positioning systems requiring minimal backlash
- Semiconductor Manufacturing Equipment: Wafer handling and processing machinery
