1, carrying capacity. In the same outer diameter and the maximum outside diameter of the coupling, the drum-type coupling capacity of the coupling capacity than the straight-tooth coupling increased by 15 to 20%

     2, angular displacement compensation. When the radial displacement is equal to zero, the allowable angular displacement of the straight-tooth coupling is 1o, and the permissible angular displacement of the drum-type coupling is 1o30 ', which is increased by 50%. In the same modulus, the number of teeth, tooth width, the drum teeth than the straight tooth to allow large angular displacement,

     3, drum-shaped tooth surface to the internal and external contact conditions improved, to avoid the angular displacement of the mandibular tooth edge edge squeeze, stress concentration defects, while improving the tooth surface friction, wear conditions, reduced Noise, long maintenance cycle.

     4, the outer teeth of the tail end was the shape of the speaker, so that the internal and external tooth assembly is very convenient.

     5, the transmission efficiency of up to 99.7%.

Based on the characteristics of the past, at home and abroad has been generally replaced by drum teeth tooth straight coupling.

• Elastic sleeve
• GR-shaped coupling elastomer