WGT Type Crowned-Gear Coupling with Intermediate Spacer

The WGT type crowned gear coupling with intermediate sleeve is a rigid-flexible coupling specifically designed for long shaft transmission systems. It is suitable for industrial applications where the power source and driven equipment are arranged over extended distances. The structure consists of flanged half couplings with external teeth, an internally toothed sleeve, and a dedicated intermediate spacer, with all components sharing the same number of teeth. Torque is transmitted reliably through the meshing of crowned gear teeth. Unlike conventional straight-tooth designs, this coupling features spherical external teeth whose curvature center coincides with the gear axis, along with an optimized backlash configuration. This design enables the coupling to maintain stable torque transmission while providing effective compensation for angular, axial, and radial misalignments. The addition of the intermediate sleeve not only extends the connection distance between the two shafts, but also optimizes load distribution in long-distance transmission systems, reducing alignment difficulty and minimizing its impact on operational performance.
In terms of performance, the WGT coupling can accommodate shaft deviations caused by installation errors, thermal expansion, or operational vibration, thereby improving tooth contact conditions and reducing localized stress concentration. The main components are manufactured from high-strength steel, and the gear teeth can be surface-hardened according to specific operating requirements to meet the demands of low-speed, heavy-load, or high-power transmission applications. The crowned tooth design promotes more uniform load distribution across the tooth surface, enhancing transmission efficiency while controlling wear. Combined with a reliable lubrication and sealing system, this coupling is well suited for metallurgy, mining, port machinery, and large-scale conveying systems, ensuring stable long-distance power transmission under demanding operating conditions.