Propeller shafts and vcu (Drive shafts)

PROPELLER SHAFTS AND VCU

Front propeller shaft

The front propeller shaft consists of a thin walled tube with a coupling welded to the front end and a conventional universal joint welded to the rear end. The coupling bolts to the output flange of the IRD. The universal joint is splined to the input shaft of the VCU and secured by a bolt.

The coupling reduces vibration and accommodates both angular movement (10 degrees maximum) and axial movement (50 mm maximum) between the propeller shaft and the IRD.

The universal joint incorporates serviceable, sealed needle bearings.