In this Tech Tip video we explain the key differences between Spur Gear Motors and Planetary Gear Motors. For a large selection of gear motors please visit the below link. www.servocity.com/motors/
Yep, I mirror what guys below said. Very good breakdown. I have seen inside the gears before so knew what I would look like inside. But being told the pro/cons and the information about the materials of the different stages of a planetary (eg, nylon vs metal) was great info. And best of all, being told exact meaning of spur.. It got me thinking that a planetary must be spur also, and then having it confirmed a few minutes later was great. Clears up some confusion I always seem to have when looking at motors on websites
Glad to see people like you making proper use of RU-vid. Thanks for the informative breakdown and one suggestion; give the other guy a chance to speak ;)
Great video! I'm curious what would occur if the wax-like lubricant were replaced with gear lube grease (like the ones pressed into zerk fittings in larger machine applications) and if this would lend to even longer life. I've replaced the OEM lubricant in my impact gun with synthetic lube grease after the OEM stuff broke down and caused it to seize. A year later, my impact gun is going strong.
One can reasonably assume for generic parts whatever is used is primarily chosen for cost purposes. Find out what high-end motors use, and do likewise. I wouldn't just use a different grease made for metal for a nylon application.
what is the opposite of a reducer? is there a motor with planetary gears inside them to power a larger radius and add rotations to the smaller radius center axis? like a brushless motor with the magnetic ring rotor and inside there a planetary gear speeding up the rotations?
That's something that isn't commonly available, generally it is easier and cheaper to wind a motor to spin faster than it is to add an external geared "overdrive" setup.
Hello guys, thanks for the great video! I have a question, hoping you could answer it. I am currently looking at the following three products on your website: 1. 5201 Series, 26:1 Ratio, 210 RPM Spur Gear Motor w/Encoder 2. 4" Heavy Duty Wheel 3. Clamping D-Hubs (Tapped), 0.770" Pattern I was wondering: is it enough to use the clamping D-hubs to attach the shaft of the gear motor to the wheel? Do the hubs and the wheel have the same kind of hole patterns to be used with the same type of screws? Thank you!
Backlash is not something that is directly related to the gearbox style (at least when comparing spur vs planetary). Both have the potential for a bit of backlash as there's typically a tiny bit of tolerance built-in between each mating gear. Feel free to contact our Tech Team should you have any additional questions tech@servocity.com
A planetary gearbox is more robust and will better withstand being backdriven. The ratio you backdrive has a lot to do with it; if that ratio is too great, it will be very difficult to backdrive and cause a lot of stress on the gears. Feel free to email us should you have any other questions tech@servocity.com.
An astute observation. I would be lying if I said we had not had a conversation along these lines before shooting this video. We opted for the more common nomenclature.
We appreciate thinking of us! We aren't experts in ebikes and such I don't believe we're the best people to answer that question well. At face value we would go with a Planetary gear motor in most heavy-duty applications similar to ebikes. But we recommend looking for other members of the community who may be more well-versed in the intricacies of ebikes.
