7020 ACE/HCP4BVG275
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7020 ACE/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
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
27
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
9518 lbf
Radial static load rating
8550 lbf
Limiting speed
12.7 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:
$ 1158.71
/ each
In Stock
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7020 ACE/HCP4BVG275 Bearing Product Overview & Core Advantages
The 7020 ACE/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 25° contact angle and is supplied with a preload, ensuring high system rigidity and minimal runout. Its construction with ceramic balls and a phenolic cage enables superior high-speed capability and reduced rotating mass. Designed to handle combined loads, it efficiently supports significant radial and axial loads simultaneously, making it an ideal choice for high-reliability, high-rotation accuracy scenarios.
7020 ACE/HCP4BVG275 Bearing Model Code Explained, Specifications & Naming Convention
The model number 7020 ACE/HCP4BVG275 provides a detailed technical specification breakdown:
- 7020: Basic designation indicating a 100 mm bore and 150 mm outside diameter.
- ACE: Signifies specific internal design and performance characteristics, including the 25° contact angle.
- HCP4B: Denotes the P4 (ABEC-7) tolerance class and likely refers to a specific preload grade and internal clearance.
- VG275: Indicates the type of high-performance grease used for lubrication, suitable for the specified temperature range.
7020 ACE/HCP4BVG275 Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The preloaded single-row design and P4 (ABEC-7) tolerance class provide exceptional rotational accuracy and 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 resin cage allows for a very high limiting speed of 12,700 rpm.
- Excellent Load Capacity: The 25° contact angle is optimized to handle substantial combined (radial and axial) loads, with high dynamic and static load ratings ensuring long service life.
- Optimized Lubrication: Pre-lubricated with VG275 grease, the bearing is ready for immediate use and operates reliably within a wide temperature range from -30°C to 110°C.
7020 ACE/HCP4BVG275 Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance machinery where speed, accuracy, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In robotic arm joints and gears requiring high positional accuracy.
- High-Frequency Motors and Spindles: Used in motors for CNC machinery and PCB drilling.
- Aerospace and Defense Systems: In gyroscopes, radar systems, and other critical navigation equipment.
