Motor to control friction wheels

General project discussion / help
Did you make a robotic coffee pot which implements HTCPCP and decafs unauthorized users? Show it off here!

Moderator: phalanx

Post Reply
Posts: 1
Joined: Thu Aug 17, 2017 2:28 pm

Motor to control friction wheels

Post by singerep » Thu Aug 17, 2017 2:36 pm

Hello all!

My latest project involves a motor that can drive an approximately 25 oz wheel, however the wheel needs to be spinning extremely fast, at around 4000-6000 rpm. The wheel is about 6 inches in radius. Is it possible to use a cheap brush motor that can obtain these speeds (how will the load affect it), or is there something else that I should try.


Support Volunteer
Posts: 1740
Joined: Wed Dec 22, 2010 2:05 am

Re: Motor to control friction wheels

Post by Valen » Tue Sep 12, 2017 3:48 pm

Is the wheel the load of the motor? Or is something else touching the wheel that must be driven? You need specific data on that. Friction, Moment of Inertia together with rotational acceleration OR Torque with rpm must be known.

Cheapness has no concept in engineering or physics. Only in economics. Given enough time and no (static) friction even your smartphone vibrator motor would get it up to speed.

Consider this: ... _1377.html

Post Reply