Can anyone recommend some kind of 90 degree gearbox to fit a featherweight spinner? Weapon motor is a Turnigy Rotomax 50cc, preferable ratio is somewhere between 2:1 and 3:1. Or will it have to be a custom job?
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Can anyone recommend some kind of 90 degree gearbox to fit a featherweight spinner? Weapon motor is a Turnigy Rotomax 50cc, preferable ratio is somewhere between 2:1 and 3:1. Or will it have to be a custom job?
I've recently designed a right angle gearbox using bevel gears for my featherweight horizontal spinner which seems to work fine. It was a custom job, using a pair of 2:1 bevel gears and keying a timing pulley to the output shaft so it turns with the gear (from beltingonline). Gearbox body was milled from aluminium and the gears/shaft were keyed.
Do you have any more detail on the bevel gears you used? I'm unsure as to what size would be appropriate.
http://www.beltingonline.com/16-32-t...-srb10-2n-7177
Think it was this or something similar. I would say use spiral bevel gears if you can though as they will be smoother and result in less loss through heat/friction from the gears hitting each other.