S7020 CEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7020 CEGA/HCP4A
Basic Information
System of measurement
Metric
Weight
1.18 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
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°C to 110 °C
Radial dynamic load rating
10102 lbf
Radial static load rating
9000 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
4
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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S7020 CEGA/HCP4A Bearing Product Overview & Core Advantages
The S7020 CEGA/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. This single bearing features an extra light preload (Class A) and is constructed with a ceramic ball and phenolic cage combination, enabling superior high-speed performance. Its design is optimized to handle combined loads efficiently, making it an ideal choice for high-rigidity, high-rotation precision systems. The bearing is universally matchable (SU), allowing for flexible arrangement in sets to meet specific application requirements.
S7020 CEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| CEGA | Specific internal design and clearance for universal matching with extra light preload. | Ensures optimal performance and low heat generation in preloaded configurations. |
| HCP4A | Hybrid Ceramic (balls) with Phenolic cage and P4A tolerance class. | Delivers high-speed capability, electrical insulation, and ultra-precision. |
S7020 CEGA/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 15° contact angle and robust construction provide excellent stability and the ability to support significant combined radial and axial loads.
- Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage allows for a high limiting speed of 10,000 rpm, minimizing friction and heat buildup.
- Ultra-Precision: Manufactured to P4A tolerance class with tight dimensional controls on bore, outside diameter, and width, ensuring minimal runout and superior rotational accuracy.
- Long-Term Reliability: The sealed design with grease lubrication protects against contamination and provides consistent performance within a wide temperature range of -30°C to 110°C.
S7020 CEGA/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision and speed are critical. Key applications include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Aerospace & Defense Systems
- Medical & Dental Equipment
