Gear couplings also called unisoft gear couplings are power dense and capable of transmitting high torque at high speeds while still remaining inherently well balanced. Gear couplings transmit torque by the mating on two hubs with external gears teeth that are joined by flanged sleeves with internal gear teeth. Large tooth profile for longer life, interchangeable with other ind, std gear couplings. Torque up to 81709 nm, bore up to 260 mm. Different sizes are available