Which Low RPM Gear Motor?
1. 12VDC Gear Motor, 7 Rpm 2-7/16" x 1-5/16" Dia.
2. Tamiya 70110 4-Speed Crank-Axle Gearbox Kit
If I used the Tamiya gearbox, I would also have to buy higher voltage motors, so the cost of the two is approximately equal. Because of its layout, I think the Tamiya would be easier to use, but I'm worried about stripping the plastic gears. Also, I have a smaller Tamiya gearbox, and the axle has some play in it and is extremely noisy.
The 12V gear motor, on the other hand, appears to be more robust and probably has metal internal gears, but it would make my robot a bit larger.
Does anyone have experience with Tamiya gearboxes? How do they handle high loads? If anyone has any input on these two choices, or other motors you think would be even better, I'd really appreciate the help. Thanks!