Does anybody know where I might be able to purchase a 1:350 (or around that ratio) gearbox?
Does anybody know where I might be able to purchase a 1:350 (or around that ratio) gearbox?
(OP)
I am debating whether to purchase or designed a speed increasing gearbox that will power a generator from a water wheel. The water wheel is moving about 2 rpm and I need an output of 600 rpm to power a generator. Any ideas?





RE: Does anybody know where I might be able to purchase a 1:350 (or around that ratio) gearbox?
How much torque do you need?
When you connect your drive to your waterwheel, the inertia of your generator's armature will be multiplied by the ratio squared, or around 100,000. This could result in some crazy stresses on the generator's shaft. You need to check for this in your calculations.
Mills with waterwheels all used to be belt driven. Why not use some belt drives? Three belts with a 7:1 ratio will have a total ratio of 343:1.
--
JHG
RE: Does anybody know where I might be able to purchase a 1:350 (or around that ratio) gearbox?
You're absolutely right, a belt drive completely slipped over my head; and yes, I was looking to have 3 to 4 connections and space is crucial, so the 7:1 ratio sounds perfect. I'm going to be using mountable bearings with keyed shafts and a steel enclosure, and I want to minimalize the displacement of the system. Also quietness was a factor, so belts will definitely be a viable solution. I just needed to reach an rpm range of 500-650 to power a generator. Inertia shouldn't be a problem, as I've made necessary adjustments so that it won't effect the generator itself.
RE: Does anybody know where I might be able to purchase a 1:350 (or around that ratio) gearbox?
http://www.hitekbalancing.com/blog/2010/11/04/air-...
http://3.bp.blogspot.com/_8H0W-6Yoqp0/SUNBabOoBgI/...\
nearly impossible to achieve (and assemble) shaft-to-bearing fits are the solution.
An alternative is this -
http://evolution.skf.com/us/concentra-%E2%80%93-a-...
http://www.youtube.com/watch?v=v_8W3IJGT_o
RE: Does anybody know where I might be able to purchase a 1:350 (or around that ratio) gearbox?