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the article citations: time:2014-12-16 10:56:56
is a standard bearing, the outer surface of the inside circle or outer ring with alumina formed by plasma spraying coating. resin sealing coating to prevent water and moisture conductive effect. basic coating can withstand voltage of 1000 v dc. can supply according to the requirement, however, able to withstand up to 2000 v or 3000 v dc coatings.
can avoid electric corrosion caused by the damage, so compared with the ordinary bearing used in motor can ensure more reliable operation. compared with other insulation methods, such as shaft or housing insulation, etc., more cost-effective and reliable.
dimension and the basic technical characteristics and the insulation bearing the same, thus one hundred percent swap.
when passes through the bearings, motors, generators and related equipment at risk. that this might damage the bearings of rolling element and raceway contact (electric erosion), and rapid degradation of grease. stray capacitance due to the inherent high frequency current makes the motor and generator is additional risk. if the use of frequency converter, damage increased risk.
is designed to prevent current through bearings. compared with other methods of insulation, the bearing is a cost-effective solution. insulation bearing can pass will be integrated into the bearing ability of insulation and fundamentally eliminate the electric erosion, so as to improve the reliability and increase machine uptime.