... shaft clutch: NAC5, NAC10, NAC40, NAC602. Air pressure ventilation shaft brakes: NAB5T/S, NAB10T/S, NAB20T/S, NAB40T, NAB65T3. Air ... sliding) security chuck: STOSTW, FLOFLW6.pain magnetic powder clutch/brake7. Electromagnetic clutch/brake8.influencing hydraulic system of hydraulic pressure machinery widely ... , automation engineering etc. More than 100 machines. DBK Air Brakes (Type Of Cooling And Fan)