Ok,,,,
I have contacted ....Applied....for a quote on my sprockets for my type 2 rotary drive,
as per the chart I need a 15 tooth and a 57 tooth sprocket with a three eighth pitch..........the 15 tooth is no problem along with the chain.......but the 57 tooth is a special order and its 450 bucks..........(the 15 tooth is 70 bucks).....
am I looking in the right spot....
is this normal....
please adise
thanks
Couple of things.
I am very familiar with the rotary drive setup in the 40.5 and 43.
The gear ratios are guides, but close matches will also work.
Here is why.
The rotary drives are typically intended to drive the quadrant directly, either through a chain spliced into the stainless quadrant wire, or an independent quadrant on the rudder shaft.
In both cases, the motor is somewhat heavily stressed.
On the hunter install, you are driving a gear on the steering wheel hub.
The wheel is already highly geared to the rudder through the radial drive.
Proof.... You can steer you boat wheel with 1 finger.
Yes,,,,, I know that there is more torque on the wheel rim than at the center of the shaft, but if you hold the wheel at the spoke center, you can still turn the rudder.
Now, what might be making things expensive is the type of hub you are choosing. I would consider looking at a Fenner Transtorque coupling, which will adapt gear flanges, and do a much better job of mounting gears on shafts.
Lastly, you MUST have stainless chain.
I bought a bunch of it for my install, as there is a minimum order.
You can pm me.
I would also get the gears chrome plated. Way Cheaper than stainless.
