The gear type coupling is composed of the inner gear ring with the same number of teeth and the flange half coupling with outer teeth. Divided into straight teeth and drum tooth outside two kinds of tooth shape, tooth is the so-called drum will made spherical outer teeth, spherical center on the gear axis, backlash is generally large gear, drum gear couplings allows a larger angular displacement (as opposed to straight tooth coupling), can improve the tooth contact conditions, improve the ability to transfer torque, prolong service life. The contact state along the tooth width when angular displacement is present.

Specific models: WGZ1, WGZ2, WGZ3, WGZ4, WGZ5, WGZ6, WGZ7, WGZ8, WGZ9, WGZ10, WGZ11, WGZ12, WGZ13, WGZ14