S7011 ACD/HCP4ADGB
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7011 ACD/HCP4ADGB
Basic Information
System of measurement
Metric
Weight
0.64 kg
Tolerance class
P4A
Seal type
Sealed
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
11.112 mm
Ball quantity
18
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
13612 lbf
Radial static load rating
13950 lbf
Limiting speed
34 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
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In Stock
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S7011 ACD/HCP4ADGB Bearing Product Overview & Core Advantages
The S7011 ACD/HCP4ADGB is a high-precision double row angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. This sealed bearing is designed to accommodate combined loads (radial and bidirectional axial loads) simultaneously, offering superior performance in high-speed and high-rigidity scenarios. Its compact design, featuring ceramic balls and a phenolic cage, ensures low friction, high-speed capability, and extended service life, making it an ideal solution for precision machinery.
S7011 ACD/HCP4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7011 | Basic bearing designation, indicating a double row angular contact ball bearing with a 55mm bore. |
| ACD | Contact angle of 25°. |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls. |
| P4A | High precision tolerance class (equivalent to ABEC 7), ensuring extremely tight running accuracy. |
| DB | Universal Matchable (SU) arrangement. Two bearings are supplied as a matched set for optimal performance. |
S7011 ACD/HCP4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior stiffness and enables the bearing to handle significant combined radial and axial loads from both directions, ensuring stable operation under complex loading conditions.
- Exceptional 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, minimizing heat generation and power loss.
- Precision & Longevity: Manufactured to a P4A tolerance class, this bearing guarantees minimal runout and vibration. The integral seals and pre-applied grease lubrication protect against contamination and provide maintenance-free operation within a wide temperature range of -30°C to 110°C.
- Universal Matchability: Supplied as a universally matchable (SU) set, these bearings can be mounted in various configurations (back-to-back, face-to-face, or tandem) without requiring selective assembly, simplifying installation and ensuring pre-defined performance.
S7011 ACD/HCP4ADGB Bearing Typical Application Areas
This high-performance bearing is ideally suited for:
- Machine Tool Spindles
- High-Frequency Electric Motors and Spindles
- Precision Grinding Machines
- High-Speed Robotics and Automation Equipment
- Aerospace and Defense Actuation Systems
