The recently developed GEARex is a crowned gear coupling fully made from steel. It is lubricated with grease, sealed by toroidal sealing rings and is suitable as a flexible shaft connection for positive-locking torque transmission. GEARex is in conformity with the AGMA standard and is certified and approved in accordance with ATEX. This coupling transmits high power while having compact dimensions. The GEARex which is available in various designs is able to transmit torques up to 500 kNm.