GICL, GIICL series drum gear couplings are especially suitable for low-speed and heavy-duty working conditions, such as metallurgy, mining, lifting and transportation industries, and also suitable for shafting transmission of various machinery such as petroleum, chemical industry, and general machinery.

　　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.

　　Gear coupling is composed of internal gear ring with the same number of teeth and flange half coupling with external teeth.The external teeth are divided into two types: straight teeth and drum teeth. The so-called drum teeth means that the external teeth are made into a spherical surface. The center of the spherical surface is on the gear axis. The tooth side clearance is larger than that of ordinary gears. Allows a larger angular displacement (compared to the straight tooth coupling), which can improve the contact conditions of the teeth, increase the torque transmission capacity, and extend the service life.

　　GⅠCL, GⅠCLZ type-drum gear coupling (JB/T 8845.3-2001)GⅡCL, GⅡCLZ type-drum gear coupling (JB/T 8845.2-2001)
GCLD type-drum gear coupling (JB/T 8845.1-2001)
WGP type-drum gear coupling with brake disc (JB/T7001-93)
WGC type-vertical installation drum gear coupling (JB/T7002-93)
WGZ type-drum gear coupling with brake wheel (JB/T7003 — 93)
WGT type—connecting to the middle sleeve drum-shaped gear coupling (JB/T7004 — 93)
TGL type—nylon inner gear ring drum gear coupling (JB/T5514-91)
WGJ type-drum gear coupling with intermediate shaft (JB/T8821-1998)
NGCL type-with brake wheel type (JB/ZQ4644-97)
NGCLZ type-with brake wheel type (JB/ZQ4645-97)
WG type-with brake wheel type (JB/ZQ4186-97) 
CL type gear coupling (JB/ZQ 4218-86)
CLZ type gear coupling (JB/ZQ 4218-86)
NL Type—Nylon Internal Gear Ring Drum Gear Coupling (DB 3202-87)
The drum gear coupling is a rigid-flexible coupling.Gear couplingIt is composed of internal gear ring with the same number of teeth and flange half coupling with external teeth.The external teeth are divided into straight teeth and drum teeth. The so-called drum teeth means that the external teeth are made into a spherical surface. The center of the spherical surface is on the gear axis. The tooth side clearance is larger than that of ordinary gears. Allows a larger angular displacement (compared to the straight tooth coupling), which can improve the contact conditions of the teeth, increase the torque transmission capacity, and prolong the service life.