Saturday, September 16, 2017

Re: [Electric Boats] gear reduction transmissions

 

Good idea Bob,
Here are some links I quickly found to support it.
 
 
 
 
Just to name a few...
However, I noted the Baldor gears were rated for very slow RPMs and low H.P. outputs.  I understand they are primarily for electric motors, but like in my case, I had to select a gear set that would stay in the boat at up to 5500 RPM, and the torque of 33 ICE H.P.  It is a bit overkill, but I am making sure in the design and construction phases, that the gears will not "sink me" when I want to romp on it to show off to my buddies.
 
It is all speculation till you try somethin...
 
Cheers all,
Dan H.
 
 
 
Sent: Saturday, September 16, 2017 6:02 AM
Subject: Re: [Electric Boats] gear reduction transmissions
 
 


Take a look at a Browning Helical Gear Drive. They are available in many reductions & can be purchsed with the C Face adapter.
I used a 3201 to mate up with my motor.

Bob

--------------------------------------------
On Mon, 9/11/17, benjatelcom@gmail.com [electricboats] <electricboats@yahoogroups.com> wrote:

Subject: [Electric Boats] gear reduction transmissions
To: electricboats@yahoogroups.com
Date: Monday, September 11, 2017, 10:30 AM


 









I am searching for a gear reduction system. I would
like it to mount to my Motenergy ME1305 which has a NEMA
143T flange, and be in the 5:1 range.

The motor currently faces forward, with a dual
size 3 V-belt transmission with a 3:1 sheave reduction to my
inboard propeller shaft directly below the motor. The
propeller shaft is too low in the narrow keel to couple
inline with motor so I need to keep the vertical offset.

I'm having a hard time
sorting through gear reduction systems.

The goal is to go from a V belt 3:1 reduction
to 5:1 reduction, but I cannot make my shaft pulley any
larger. O could potentially combine reduction of a
transmission and belts.

I
could also buy a higher torque motor from Motenergy that
tops out at 2200 instead of 3600RPM. This might be cheaper
and easier than a transmission.











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