There are ways of taking a look at a gearbox and it depends primarily on the user. Usually gearboxes are labeled by their ratios. There are additional characteristics about the various types of gearboxes which are more technical than I wish to get into at this stage.
Suffice it to say we wish to slim down the types of ratios available to the Hobbyist which are direct, simple and simple to comply with for the newbie to the professional hobbyist.
We are dealing primarily with Brass Steam Locomotives and the unique gearbox that came with the engine versus replacing the gearbox with better equipment. Ratios vary from very sluggish to high speed. Over the past 50+ years gear boxes have not necessarily been standardized. The overall ratios are 27:1 or 28:1 for high velocity and 36:1 or 37:1 for low speed. Nonetheless, among the locomotives produced in Asia got here with odd ball ratios of forty one:1 which made the engine crawl at best.
The gearbox alone dose not necessarily make the engine run faster or slower. It depends upon the Can Motors rpm values and torque values. For example, if I wished a 2-10-2 locomotive to run at scale commonplace velocity with a load I would selected a gear ratio of 28:1 and a can motor of 12.5 rpm with a superb torque value. Typically the scale of the motor will decide the torque value. Most can motors will fit in a 2-10-2 locomotive. This is a prejudicial choice and is not necessarily the will of anyone hobbyist. I choose the 27:1 or 28:1 ratio gearbox with the correct Can Motor to manage engine speeds.
The opposite ingredient that is necessary for this system to work is the gear situated on the principle driver of the steam engine. This gear is similar ratio that you’d select for you gearbox. The gearbox truly rides on the principle driver gear. With out entering into the particulars of the Can Motor to the gearbox it needs to be noted that the motor shaft to the gearbox shaft should be stabilized so the gearbox doesn’t spin round the primary gear. That’s the technique of attaching the two collectively to incorporate the ability to gearbox mechanism. In another article, I’ll clarify the drive shaft particulars and the types of mechanism which are available to accomplish this task.
It should be noted that there are producers of substancesboxes and the like who have catalogs that will help you decide the type of substancesbox you are looking for. I want to make it clear that for example, a 28:1 gearbox could have several traits about them that make for different uses for various engines. This is where the catalog comes in as very handy reference guide.
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