|
I'm a fan of bearings
I think ball bearings are a better choice if you can fit them in. In the end they are lower friction and lower maintenance, even for low speed devices.
For any kind of precision operation where we are trying to control one of our motors to hold a position or to drive the robot to the same place every time, the low friction of the ball bearing will be an advantage.
Sliding friction is the enemy.
Ken
|