S7020 ACEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Main Dimensions
Ball & Washer Dimensions
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S7020 ACEGA/P4A Bearing Product Overview & Core Advantages
The S7020 ACEGA/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. Engineered with an extra light preload (Class A) and manufactured to P4A tolerance class, this bearing delivers superior running accuracy and rotational stability. Its 25° contact angle is optimized to handle significant combined loads, efficiently supporting both radial and axial forces. The compact design, featuring a phenolic cage and sealed construction, makes it ideal for high-speed spindles and precision machinery where high rigidity and minimal maintenance are critical.
S7020 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| S7020 | Basic bearing designation, indicating a 100mm bore, 150mm OD, and 24mm width. |
| AC | Angular Contact design with a 25° contact angle. |
| EGA | Universal Matchable (SU) bearing, supplied in a set of 4 for precise preload arrangement. |
| P4A | High-Precision Tolerance Class, ensuring extremely tight dimensional and running accuracy. |
S7020 ACEGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and phenolic cage provide excellent dimensional stability and high rigidity, enabling the bearing to withstand substantial combined radial and axial loads.
- Precision Performance: Manufactured to P4A tolerance class with an extra light preload, this bearing ensures minimal runout and vibration, which is critical for high-precision applications.
- Optimized for High-Speed Operation: The lightweight phenolic cage and precision-ground chrome steel components contribute to a high limiting speed of 10,000 rpm, making it a true high-speed bearing.
- Sealed & Lubricated for Life: The sealed construction and factory-applied grease lubrication protect against contamination and provide long-term, maintenance-free operation within a temperature range of -30°C to 110°C.
S7020 ACEGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles
- High-Frequency Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Rotary Tables
