1.Fixed hole: 4mm
2.Center Distance to Fixed holes: 40mm
3.Ball body height: 20mm
Universal Wheel for Robotic Arm
This ball caster kit includes a white housing, a metal ball, two spacers .Note that our ball casters are designed for small robots; they are not intended to bear more than a few pounds. With more weight than this, friction between the ball and the housing will probably keep it from rolling well.