Gruber
HobbyMasters
M.L. Toys
KidsWheels
Gruber
HobbyMasters
M.L. Toys
KidsWheels
HobbyMasters M.L. Toys
Gruber
KidsWheels
Need new motors? Grind a gearbox? Adding teeth to a pinion?
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By Cougar281
#146611
I've been looking around trying to figure out what gear I need to get for a replacement motor for my daughters little 4 wheeler. The machine is a model SP6V-1006. It's a 'Spider man 6V Quad' (She doesn't care about the spider man part, we got it free and she loves riding it), but the 6v was painfully slow. So I juiced it up with a pair of 6v 4.5Ah batteries to provide 12v to the motor, and boy did it go and she have fun with it! Until the motor melted the brushes melted onto the armature and it ceased to function lol.

The motor is a MY (or HY) 390, rated at 13k RPM @ 6V. The gear on it has 12 teeth, as about 6.6mm across valley to valley and 9.6mm across from peak to peak. I've found people saying it's 32 pitch and others saying 48 pitch.

The shaft on the new motor is 2.26mm.

Does anyone happen to know what gear I need or a good place to get it?

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