Rigid disc coupling with keyway-hubs The whole coupling and the torque limiter can be dismounted without displacement of the motor, driven shaft and of the hubs. TSCHAN heavy load couplings in the TNT series are specially designed for overload protection in the heavy load industry. The heart of the couplings is in the standardised switching units, up to twelve of which are located around the circumference of the coupling. This achieves great flexibility with regard to disengagement torque, execution and coupling size. Operation

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