Drum gear couplings use parallel or spiral grooving systems to adapt to various deviations and accurately transmit torque. They usually have good performance and price advantages.
The tooth tip of the external gear sleeve of the drum-shaped gear coupling is processed into an arc, that is, the tooth blank is processed into a spherical surface. In the section of the tooth center plane and tangent to the pitch cylinder surface, the teeth form a drum shape. The so-called drum-shaped coupling Shaft.