The characteristics of the drum gear coupling (compared with the straight gear coupling has the following characteristics) 1. Strong carrying capacity.Under the same outer diameter of the inner gear sleeve and the maximum outer diameter of the coupling, the carrying capacity of the drum gear coupling is 15-20% higher than that of the straight gear coupling on average; 2. The angular displacement compensation is large.When the radial displacement is equal to zero, the allowable angular displacement of the spur gear coupling is 1°; while the allowable angular displacement of the drum gear coupling is 1°; 30”, an increase of 50%, in the same mold In terms of number, number of teeth and tooth width, the allowable angular displacement of the drum-shaped tooth is greater than that of the straight tooth; 3. The drum-shaped tooth surface improves the contact conditions of the inner and outer teeth and avoids the edge of the straight tooth under the condition of angular displacement. The disadvantages of squeezing and stress concentration, while improving the friction and wear of the tooth surface, reducing the noise, and having a long maintenance cycle; 4. The tooth end of the outer gear sleeve is in the shape of a horn, which makes the assembly and disassembly of the inner and outer teeth very convenient. 5. The transmission efficiency is as high as 99.7%.Based on the characteristics of the warp, at present, drum-shaped teeth have generally been substituted for straight-tooth couplings at home and abroad. The drum-shaped gear coupling produced by UMA has a complete range of specifications and conforms to the corresponding standards.Drum-shaped gear couplings are rigid, flexible, and inelastic, so they are not suitable for machinery that requires damping, buffering, and two-axis alignment.