S7020 CD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7020 CD/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
2.11 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
100 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
150 mm
Outside diameter tolerance
-0.004mm to 0
Width
48 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
30375 lbf
Radial static load rating
38250 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
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
No drawings available at the moment, will be launched soon
In Stock
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S7020 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The S7020 CD/HCP4ADGA is a precision double-row angular contact ball bearing engineered for high-performance applications. Its universal matchable (SU) design allows for flexible mounting arrangements in pairs to handle combined loads efficiently. Featuring a P4A tolerance class and ceramic balls, it delivers exceptional rotational accuracy, high rigidity, and superior speed capabilities. The sealed construction with pre-applied grease ensures reliable, long-term operation in demanding environments, making it ideal for applications requiring high reliability and precision.
S7020 CD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | 15° contact angle and specific internal design for optimized load distribution. |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls for reduced friction, higher speed, and longer service life. |
| P4A | High-Precision Tolerance Class: Exceeds ABEC 7 standards, ensuring ultra-precise running accuracy. |
| DGA | Sealed on both sides and pre-lubricated with high-performance grease. |
S7020 CD/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double-row angular contact design provides robust support, enabling the bearing to withstand significant combined radial and axial loads from both directions simultaneously.
- Superior High-Speed Performance: The combination of ceramic balls and a lightweight phenolic cage minimizes centrifugal forces and friction, allowing for a high limiting speed of 10,000 rpm.
- Precision & Longevity: Manufactured to P4A tolerance with a 15° contact angle, it guarantees smooth, precise operation. The sealed construction and factory-applied grease lubrication make it effectively maintenance-free for its service life within the specified temperature range.
- Universal Matchability (SU): Bearings are universally matchable, simplifying installation and ensuring optimal preload and performance when mounted in pairs.
S7020 CD/HCP4ADGA Bearing Typical Application Areas
This bearing is ideally suited for high-demand sectors, including:
- Machine Tool Spindles
- High-Speed Industrial Pumps & Compressors
- Precision Medical & Laboratory Equipment
- Aerospace Actuation Systems
- Robotic Arm Joints and Precision Gearboxes
