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Submersible 3-4:1 90 degree reduction gearbox with streamlined casing

Submersible 3-4:1 90 degree reduction gearbox with streamlined casing

(OP)
Does anyone know of individual units that can be bought for trial purposes other than those on the bottom of most outboard engines which seem to have a reduction ratio more like 2:1

Thanks

RE: Submersible 3-4:1 90 degree reduction gearbox with streamlined casing

How many HP, and what rpm? Would a propellor be involved, and would the outbard prop be suitable? Could A 2-1 belt drive for the input be cobbled up?

If you can using an electric motor there are several options for gearmotors for the input here -
http://www.leeson.com/Literature/Grove%20Gear%20Al...
It also mentions "ratio multipliers" "available in cast iron with ratings to 20 HP and ratios from
2:1 to 7.5:1."

RE: Submersible 3-4:1 90 degree reduction gearbox with streamlined casing

(OP)
HP = 10
RPM = 1500-2000
It would be 1000x more ideal if the gearboxes was able to engage and disengage without the need for a clutch. I have been looking at bevel gearboxes but most are very heavy duty and what I want is light and efficient.

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