7020 CE/HCP4BVG275
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7020 CE/HCP4BVG275
Basic Information
System of measurement
Metric
Weight
1.12 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
100 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
150 mm
Outside diameter tolerance
-0.009mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
27
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
10102 lbf
Radial static load rating
9000 lbf
Limiting speed
14.5 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:
$ 1158.69
/ each
In Stock
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7020 CE/HCP4BVG275 Bearing Product Overview & Core Advantages
The 7020 CE/HCP4BVG275 is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single-row bearing is distinguished by its P4 (ABEC-7) tolerance class, ensuring minimal runout and superior rotational precision. Its core advantages include the ability to accommodate high combined loads (radial and axial) due to its 15° contact angle, and outstanding high-speed capabilities facilitated by its ceramic balls and phenolic cage. Preloaded and lubricated from the factory, it is ready for immediate installation in high-reliability systems.
7020 CE/HCP4BVG275 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Significance |
|---|---|
| CE | Indicates the use of Ceramic (Si3N4) balls, which reduce centrifugal forces, lower operating temperatures, and enable higher limiting speeds. |
| HC | Refers to a Hybrid Ceramic construction, combining ceramic balls with steel rings. |
| P4 | Specifies the ultra-precision tolerance class (equivalent to ABEC-7), guaranteeing extremely tight dimensional and running accuracy. |
| BV | Denotes a specific cage design and guidance, typically for high-speed optimization. |
| G275 | Likely indicates a specific preload grade and internal clearance selection for optimal stiffness and performance. |
7020 CE/HCP4BVG275 Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The combination of chrome steel rings and ceramic balls significantly reduces friction and heat generation. This results in a higher limiting speed (14,500 rpm), extended service life, and improved reliability in high-speed applications.
- Phenolic Resin Cage: The phenolic cage is lightweight and possesses excellent slip properties, contributing to lower noise levels and superior performance at high rotational speeds.
- Precision & Rigidity: Manufactured to P4 tolerance and supplied with a preload, this bearing delivers high running accuracy and system rigidity, minimizing deflection under load for precise positioning.
- Optimized Internal Geometry: The 15° contact angle is optimally balanced to handle significant combined radial and axial loads simultaneously.
- Ready-to-Install: The bearing is pre-lubricated, simplifying installation and ensuring immediate, optimal performance.
7020 CE/HCP4BVG275 Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers demanding extreme precision and rigidity.
- Precision Robotics: Arm joints and rotary actuators where accuracy, speed, and reliability are critical.
- High-Frequency Motors & Spindles: Applications requiring stable operation at very high rotational speeds.
- Medical & Dental Equipment: High-speed handpieces and diagnostic scanners.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other critical rotating assemblies.
