goBILDA 5201 Series Spur Gearmotor discontinued
Hi M. Bill,
I have started purchasing the DB1 robot parts and the chassis is complete. However, it seems the goBILDA motor that you use in this project is no longer availabe. Could you or anyone else suggest me another model that would fit ?
Great projetc by the way. Thanks !
You just need gearmotors that have similar specs such as no load rpm, stall torque, stall current, 12V and has encoders. Then there is the shaft size to consider. And the threaded mounting pattern to attach the motor to frame. The numbers do not need to be exactly the same as the 5201 but reasonably close if you're trying to stay close to the DB1 design.
If you go to your link above search for "FTC Competition Kit". You will see by their kit description that the 5201 series has been replaced by 5202. And they have a 5202 gearmotor that is 117 rpm which is close enough to 105 rpm. Looking at the specs, it probably has the exact same motor but a different style gearbox (planetary). Also look to get the correct mounting adapter for it you are using the "Actobotics" style frame. This isn't the only gearmotor that would do the job there are many others with similar specs available elsewhere.
But it provides way less torque!
I take that back!!! I just found the model you were referring to, the model 5202-0002-0051.
I was looking at the Actobotic's standard duty model 638298, not the correct model! 😨
But is a good bit more expensive the 5201 motors were.
The other thing you might need to consider it their length! If I were to try to put two of these in my version of DB1 they wouldn't fit because there isn't enough room between the ends of the motors I'm currently using for the new motors to fit.
I think I might have stripped the gears on my 5201 and was wondering if I could replace it with a 5202. I guess I would have to use a different calibration for setting the speed but everything else should pretty much be the same.
Pat Wicker (Portland, OR, USA)
From what I have found the 5201 and 5202 use the same DC motor ("Matrix") originally from Modern Robotics. The gear boxes are from goBilda. The 5201 gear box is a spur gear design and the 5202 is a planetary design. So you can take a 5202 gear box and replace the 5201. Be aware there are many different gear ratios available. It would be nice if you could just purchase the gear box but a quick search I only found you can buy just the motor (~ $15) or the whole assembly (~ $40).
See gobilda.com, modernroboticsinc.com, servocity.com
FYI. Gearmotors are 25% off and Actobotics 30% off this week at your link at the top of this post.
Late I know, but I do a small compare of the generic vs the goBildas.