S7020 ACD/P4ADGC
Sealed Super Precision Angular Contact Ball Bearings
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S7020 ACD/P4ADGC Bearing Product Overview & Core Advantages
The S7020 ACD/P4ADGC is a precision double-row angular contact ball bearing designed for applications requiring exceptional rigidity and accuracy. Engineered to simultaneously handle combined radial and axial loads from both directions, this bearing features a universal matchable (SU) design that simplifies mounting and ensures optimal performance in preloaded arrangements. With its P4A super-precision tolerance and sealed construction, it delivers reliable operation in high-speed, high-rigidity applications where minimal runout and long service life are critical.
S7020 ACD/P4ADGC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACD | 25° contact angle, double-row design | Optimized for combined load capacity and high rigidity |
| P4A | Super-precision tolerance class | Exceptional running accuracy for precision applications |
| DGC | Sealed construction with grease lubrication | Contamination protection and maintenance-free operation |
S7020 ACD/P4ADGC Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double-row angular contact design with 25° contact angle provides superior stiffness and can withstand significant combined radial and axial loads in both directions. The universal matchable (SU) configuration allows for precise preload adjustment when mounted in pairs.
Precision Performance: Manufactured to P4A tolerance class with precision-ground components, this bearing ensures minimal vibration and runout. The phenolic cage contributes to smooth operation at high speeds while reducing weight and friction.
High-Speed Capability: With a limiting speed of 16,250 rpm and optimized internal geometry, the bearing maintains stable performance in demanding high-speed applications. The balanced design minimizes centrifugal forces and heat generation.
Maintenance-Free Operation: The integrated seals and factory-applied grease lubrication provide long-term protection against contamination and eliminate the need for relubrication within the specified temperature range of -30°C to 110°C.
S7020 ACD/P4ADGC Bearing Typical Application Areas
- Machine tool spindles and high-precision machining centers
- High-speed industrial pumps and compressors
- Precision instrumentation and measuring equipment
- Robotic joints and automation systems
- Aerospace positioning systems and guidance mechanisms
- Medical equipment requiring high accuracy and reliability
