21-VLL Series Vertical Motors
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| 21-VLL Series Vertical Motors Features and Benefits | |
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| Design Feature | Customer Benefit |
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Excellent Electrical Performance |
Efficiency, power factor, starting current limit, torque characteristics, etc. May be tailored to meet customer requirements |
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Wide Range of Thrust Bearings Bearing selection is based on the speed and thrust load. |
Angular contact ball bearings (self-cooled) Spherical roller thrust bearings (self-cooled, air-cooled, water-cooled, oil-cooled Tilting pad thrust bearings (air-cooled, water-cooled, oil-cooled |
| Lower Noise & Lower Vibration | The latest technology reduces vibration and noise Noise level: 80dB(A) and lower (design value) JEC-2137/IEEE85 at no load 1 m 4 points average Vibration level: 1.8 mm/sec on bearing bracket. IEC60034-14 Grade B at no load (design value) |
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Analytical Technology Improves Design |
- Electromagnetic field analysis - Heat conduction analysis - Air flow system analysis |
| Advanced VPI Insulation System | Improved insulation withstands higher surge Inverter drive operation is an option |
| Type of Protection & Cooling Method - customized enclosures allow a standard production motor to meet individual requirements | - Drip-proof, NEMA Weather Protected - Totally enclosed air-to-air cooled - Totally enclosed water-to-air cooled |
| Quality Control | Designed for inspector/operator safety Bearing lubricant cycle extended and maintenance lowered with standard tilting pad thrust bearing |
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