Well, I am now at the point in re-motoring a loco that I found out that my motor has the wrong style gearing on the worm, and I have to find a worm that would match the gears in the loco. How do you measure the gear to get the needed information to order one online?
Nik
Go to the below site. There is a lot of info about gears. and motors.
I have used there material for some years. Take your time.
About fifteen years ago, I bought their paper catalog and tutorials when NWSL was owned by someone else and they have got a lot of use.
Get a digital caliper that measures in Metric also as most gear stuff now uses Metric dimensions. Most calipers have US and Metric numbers.
My first calipertwenty years ago was plastic and fiberglass combo and no dial or digital capability and I had no-trouble measuring.
Micro Mark has some decent ones that are not expensive. I bought my digital caliper a few years ago and I use it a lot.
Rich
You might get more help if you gave us the scale and brand name and model # of the loco, the type of motor and the gearing {?} it does have.
There may be replacement kits available if there is a known problem by the manufacturer of the gear issue, or is it so old that you don’t expect to find that?
Just a thought and an idea.
Rich: Thanks for the site. As for the caliper, my dad has a caliper from when he was a machinist. No problem there! [8D]
It’s a HO scale Bachmann 4-8-4 that came out of their Overland set. Typical train set motor: Pancake. Not much that I can gather besides that.