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1.Transmission accurate, work without sliding, have constant ratio;

2.Stable transmission,and have buffer,damping capacity,low noise;

3.Transmission efficiently,can reach 98%,save energy obviously ;

4.Convenience in maintenance, do not need lubrication, lower maintenance cost;

5.   Speed range, general could reach 10, linear velocity of 50m/s, has large power transmission range, can reach a few watts to hundreds of kilowatts;

6.  Can be used for long distance transmission, centre distance can reach more than 10m

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