We are offering magnetic particle brake , magnetic particle brakes are ideal for torque & tension control. torque range: 0.6 to 35 lb.-inches. (7 to 395 n-cm) shaft styles: solid shaft extends on 1 or 2 sides. Hollow shaft imperial (inch) or metric mounting holes available. coil: 6, 12, 24 or 90 volts dc. par more...