chrishelen
regular
Reged: 07/01/2007
Posts: 1105
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How is your stern tube lubricated?
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dsw
regular
Reged: 22/04/2007
Posts: 225
Loc: kent
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Yes my engine is flex ably mounted with a R&D coupling on the gearbox then another R&D coupling in-between two split shaft couplings where the main shaft then goes through a pillow block bearing then into the stuffing box /gland .and the stern tube is water cooled
Edited by dsw (13/05/2008 18:18)
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Tranona
regular
Reged: 10/11/2007
Posts: 1085
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You say water cooled, but does it have water lubricated cutless type bearings? If so then there needs to be somewhere for the water to come out of the tube because cutless bearings rely on a continuous flow of water.
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TigaWave
regular
Reged: 17/12/2004
Posts: 1734
Loc: Buckland Monachorum
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4mm is fine as a minimum for water exit, we set 3 as a minimum in cutless and stern tube bearing installations. But it sounded like your thrust loads are taken on the engine mounts, in which case add another 9.00mm for foreward movement = 12.00mm min
If the pillow block also has thrust bearings then 4-5mm as a minimum is fine.
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