As promised, Below are the motor charts we have put together to help everyone identify what motor goes with what product in each product line.
A couple things to bear in mind when looking at these documents;
1.) Take particular note to dimensions of the worm gears. Each mechanical drawing shows the diameter of the worm as well as the length of the worm gear itself (remember, this is just the worm I am talking about). To the left of each mechanical drawing is the factory part number for the "worm gear". This number is very important, as it is included in the part description of every motor we have in stock. (Additionally, each truck we have renamed has the appropriate worm gear that mates to that particular truck (example below)).
2.) The second thing to take note of is the "worm depth". This is shown on the first page of each document. It is the length from the bottom of the motor (the face of the motor that sits on the motor mount) to the bottom flat face of the worm gear. My single biggest fear was dumping motors with the same worm gear into a pile and not paying attention to its overall worm depth, thus having a motor bottom out inside a gearbox. So please pay particular attention to the "worm depth" when researching your motors.
3.) Finally, if you review the document carefully you will find a couple worm gears have the same dimensions. But look at the document closer, as they are typically installed on two different sized motors. For instance two worm gears may measure 7.86mm D X 20mm L. One will be pressed onto an RS385PH and the other pressed onto a RS365SH, so just because you measured the worm gear itself, please ensure you have identified the motor it is married to as well, for each application.
You have to bear in mind that any truck block can work on any number of different locomotives, as well as the motors. But mating the correct motor (think worm gear) and the correct helical gear (think truck block) is the most important first step. Then comes motor size, flywheel dimension, tach bracket, etc.
When the site launches you will see how we renamed the truck blocks as well. Below is an example of the changes implemented;
DA2000008 4-WHEEL TRUCK / POWERED / LONG FRONT / TOP MOUNT FRAMES / 1 HOLE PILOT MOUNT / USE BI-0000009 MOUNT / USE MOTOR W/MD001-M8 WORM
(Understand that the old part name was "truck", all 682 different part numbers were named "truck".........)
As you can see above, the truck block description includes what motor mount to use (very important!) as well as what worm gear to use with this truck block. We have tried to construct a bi-directional relationship between truck blocks, motor mounts and motors, as best that we can. I would imagine someone will find a fly in the soup, but at least it will prove we are human, I suppose?
I would love to tell you that we have every motor you could ever want in stock, but that is not the case. We have made every effort to reduce the number of individual part numbers for a given motor down to one or two or three (based on worm depth) (and yes, we kept the integrity of old numbers by pointing them to the most current part number, motors included).
In some instances you may have to pull a flywheel and worm gear and build a new motor, we have all the motors in stock without flywheels and worm gears, so it is feasible to do this, along with tach brackets, flywheel stripe tape, etc. If it needs to be done, it can be, that's all I'm saying.
Understand our goal is to provide you with the parts you need and organize it in a way that's as easy to understand as possible, so YOU can find what you need (read YOU (not me) LOL).
Sorry for the doldrum, just trying to get the "correct" information distributed.
Before anyone asks; We do not currently have one of these charts for the following product lines, yet:
Tinplate
RailKing One Gauge
HO
S Gauge
They will be developed in the future, but we do not have the information required to get them done at this time.
Hope you can use these documents to your advantage!
Thank you,
Mike Reagan
MTH Parts & Sales LLC
