S7011 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7011 CD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.32 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.008mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
18
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
8932 lbf
Radial static load rating
7312 lbf
Limiting speed
18 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
Price:
$ 433.99
/ each
In Stock
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S7011 CD/HCP4A Bearing Product Overview & Core Advantages
The S7011 CD/HCP4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior speed performance. Its primary advantage lies in its ability to accommodate combined loads—significant radial loads alongside substantial axial loads in one direction. Manufactured to a P4 (ABEC-7) tolerance class and featuring a phenolic cage and ceramic balls, this bearing is designed for high rigidity and extended service life in demanding operational environments.
S7011 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| C | Specifies a 15° contact angle, optimized for high-speed applications requiring high axial load capacity. |
| D | Indicates the bearing is supplied with a specific preload for enhanced rigidity and precise rotational accuracy. |
| HC | Signifies the use of Hybrid Ceramic components, specifically ceramic balls for reduced friction, lower operating temperature, and higher limiting speed. |
| P4A | Denotes the tolerance class P4 (ABEC-7), ensuring extremely tight dimensional and running accuracy for precision machinery. |
S7011 CD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The combination of a 15° contact angle and an applied preload (D) provides exceptional system stiffness, minimizing deflection under load for superior positional accuracy.
- Enhanced Speed and Durability: The hybrid ceramic design (HC) with ceramic balls and a lightweight phenolic cage significantly reduces centrifugal forces, enabling a high limiting speed of 18,000 rpm and reducing heat generation.
- Superior Load Capacity: The angular contact design is optimized to handle combined radial and axial loads efficiently, with a dynamic load rating of 8932 lbf.
- Sealed and Lubricated for Long Life: As a sealed and pre-lubricated unit, the bearing is protected from contamination and is ready for immediate installation, offering a maintenance-free solution within its specified temperature range.
S7011 CD/HCP4A Bearing Typical Application Areas
This high-performance bearing is ideally suited for:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- High-Frequency Motors
- Advanced Robotics and Automation
