Marine drive lower unit with sequentially loaded multiple...

Details Marine drive lower unit with sequentially loaded multiple... Marine drive lower unit with sequentially loaded multiple...

B - Operations, Transporting

63

H

115/22

B63H 5/10 (2006.01) B63H 23/02 (2006.01) F16C 17/04 (2006.01)

Patent

CA 1288642

Abstract A marine drive unit includes a lower torpedo housing . At least one propeller shaft is mounted in the housing for rotation about a drive axis . The propeller shaft is driven by a driving gear suitably connected to a marine engine and mounted on the drive axis. A first forward thrust bearing is disposed between the driving gear and the housing. In addition, a second forward thrust bearing is disposed adjacent the forward end of the propeller shaft. A pre-loading device, in the present embodiment a washer-like Belleville spring of a desired capacity, is disposed to provide an adjustable rearwardly biasing force on the second thrust bearing.

591923

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