7011 ACEGA/HCP4AL1
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7011 ACEGA/HCP4AL1
Basic Information
System of measurement
Metric
Weight
0.36 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
18 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
3578 lbf
Radial static load rating
2610 lbf
Limiting speed
34 X 1000 rpm
Lubrication
Lubricated
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
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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7011 ACEGA/HCP4AL1 Bearing Product Overview & Core Advantages
The 7011 ACEGA/HCP4AL1 is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. Designed to accommodate combined loads (simultaneous radial and axial loads), this bearing features a 25° contact angle for optimal axial load capacity. Its P4A super-precision tolerance and extra light preload (Class A) ensure minimal runout and vibration, making it ideal for high-speed, high-rigidity applications. The use of ceramic balls and a phenolic cage further enhances its high-speed capability and reduces rotational mass.
7011 ACEGA/HCP4AL1 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| EGA | Universal Matchable (SU) bearing designed to be mounted in pairs (back-to-back, face-to-face, or tandem) to form a matched set. |
| HCP4A | Indicates the tolerance class P4A (higher than ABEC 7) and the extra light preload (Class A). |
| L1 | Specifies the light preload category for the universal matched pair. |
7011 ACEGA/HCP4AL1 Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The P4A tolerance class and controlled preload provide exceptional rotational accuracy and system stiffness, critical for minimizing deflection under load.
- Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage allows for a very high limiting speed of 34,000 rpm, reducing friction and heat generation.
- Excellent Load Capacity: The 25° contact angle is optimized to handle significant axial loads in one direction while also supporting substantial radial loads.
- Matched Set Performance: As a Universal Matchable (SU) bearing, it is supplied from manufacturing with controlled preload and can be paired to achieve precise axial and radial stiffness without additional adjustment.
- Wide Temperature Range: Suitable for operation from -30°C to 110°C, accommodating various industrial environments.
7011 ACEGA/HCP4AL1 Bearing Typical Application Areas
- High-Frequency Machine Tool Spindles
- Precision Grinding Spindles
- High-Speed Robotics and Automation Arms
- Advanced Medical Equipment Spindles (e.g., dental drills, imaging systems)
- Aerospace Actuators and Control Systems
- High-Performance Electric Motors
