S7020 ACEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7020 ACEGA/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
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
27
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
9518 lbf
Radial static load rating
8550 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
No drawings available at the moment, will be launched soon
Price:
$ 334.93
/ each
In Stock
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S7020 ACEGA/HCP4A Bearing Product Overview & Core Advantages
The S7020 ACEGA/HCP4A is a high-precision, single-row angular contact ball bearing engineered for demanding applications. Its core advantage lies in its ability to handle combined radial and axial loads simultaneously, making it an ideal choice for high-speed spindles and precision machinery. Manufactured to a P4A super-precision tolerance and featuring a ceramic ball and phenolic cage construction, this bearing delivers exceptional rotational accuracy, high rigidity, and superior high-speed performance. Its sealed design and pre-lubrication ensure long-term, maintenance-free operation.
Model Code In-Depth Analysis
| Code Segment | Technical Meaning |
|---|---|
| S7020 A | Basic bearing designation with Extra light (Class A) preload. |
| C | 15° nominal contact angle. |
| EGA | Optimized internal geometry for enhanced performance. |
| HC | Hybrid Ceramic bearing with ceramic balls and steel rings. |
| P4A | Super-precision tolerance class, tighter than ABEC 7. |
S7020 ACEGA/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row design, combined with P4A tolerance and Class A preload, provides exceptional running accuracy and system stiffness, minimizing deflection under load.
- Superior High-Speed Capability: The lightweight phenolic resin cage and low-friction ceramic (Si3N4) balls significantly reduce centrifugal forces and operating temperatures, enabling a high limiting speed of 10,000 rpm.
- Extended Service Life & Reliability: The hybrid ceramic construction offers superior resistance to wear and is less susceptible to electrical arcing. The bearing is sealed and pre-lubricated, protecting against contamination and providing long-lasting, maintenance-free operation within a temperature range of -30°C to 110°C.
- Universal Matching (SU): This bearing is universally matchable, allowing for flexible mounting in sets (back-to-back, face-to-face, or tandem) to achieve the required rigidity and load capacity for complex applications.
S7020 ACEGA/HCP4A Bearing Typical Application Areas
This high-performance bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- High-Frequency Motors and Spindles: Where extreme rotational accuracy and speed are critical.
- Aerospace and Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
- Medical Equipment: Dental handpieces and high-speed imaging scanners.
