Friction
Shaft

The pneumatic torque control of these friction shafts with three or more bladder grooves is achieved by means of oiled friction pads of natural felt, which transmit the pressure generated by the flat tubes in the bladder grooves in the shaft body to the inner diameter surfaces of the friction rings. This design allows for the transmission of the same pressure to the inner diameter of each friction ring, which compensates for the different web tensions on each friction ring and enables the manufacture of precisely wound reels. On this friction shaft a material can be wound simultaneously in different widths with at the same web tension.

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