B - Operations – Transporting – 63 – H
Patent
B - Operations, Transporting
63
H
308/12, 115/27
B63H 21/30 (2006.01) B63H 23/32 (2006.01)
Patent
CA 1264609
ABSTRACT OF THE DISCLOSURE A stern tube bearing system of contra-rotating propeller includes an inner shaft having a rear propeller and an outer shaft having a front propeller, both shafts being rotated in opposite directions. A shaft center portion of the inner shaft is made hollow, a plurality of oil supply holes are bored radially in the inner shaft so as to pass therethrough perpendicularly to the outer peripheral surface thereof, and a plurality of rows of these oil supply holes are arranged in the longitudinal direction of the inner shaft, whereby seizing of the bearing owing to offset contact at its rear end caused by the propeller being overhung can be prevented.
522290
Asanabe Sadao
Koda Masatoshi
Matsumoto Susumu
Morohoshi Shozo
Saki Kunio
Mitsubishi Jukogyo Kabushiki Kaisha
Riches Mckenzie & Herbert Llp
LandOfFree
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