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Steering worm and gear wheel
I am looking for a steering gear and worm wheel for an 8" scale Burrell tractor. I have looked at the dimensions of one for a 6" Savage and as the gear wheel is 3.687" across the teeth, it is possible I could adapt this. Has anyone got anything of similar size?
I am in fairly urgent need as I cannot steer my engine at the moment and the cost of having one made to the current specification is prohibitive. Has anyone got anything out there that I can consider please? |
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Quote:
Michael |
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Hi Michael
I have looked through the gearboxes I have. The closest ratio I have is 30:1, not the 20:1 you need. My other boxes are 60:1 and 120:1 - not in the right ball park. I have had a look through various suppliers of stock gears. Judging by the sizes you have given you need to source gears of 2.5 or 3 Mod - or imperial DP equivalent. I suspect metric/Mod will be easier to find and cheaper. This company is worth looking at :- https://www.rargears.com/gears/worm-wheels This website gives the dimensions of wheels/worms they supply. Assuming your existing worm is single start, your wheel must be 20 teeth to give you a ratio of 20:1. However you state it has 27 teeth, so something doesn't tally here. Don't forget you also need to confirm the 'hand' of the worm - get it wrong and you will be turning the steering wheel anti-clockwise to steer to the right! Incidentally, a friend had a Series 1 Landrover which had opposite hand steering ! An interesting driving experience ! Is the drawing available? If so, what are the original specifications? Sorry that I can't help you directly. Regards Carl. |
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