(1) The transmission is accurate, the work without sliding, with a constant transmission ratio;
(2) smooth transmission, with buffering, damping capacity, low noise;
(3) High transmission efficiency, up to 0.98, energy-saving effect is obvious;
(4) The maintenance is convenient, does not need to lubricate, the maintenance expense is low;
(5) The speed ratio range is big, generally can reach 10, the line speed can reach 50m/s, has the large power transmission range, may reach several watts to hundred tile;
(6) can be used for long-distance transmission, the center distance up to 10m above.