W420 Steel Ball Wheel (OT3680)

Caster wheel is necessary for mobile robot to support the base, especially with mobile robots which only have 2 (steering) wheels. Here is the perfect alternative, namely a steel ball and suitable for small mobile robot. The height is 20mm (from mounting surface to the ball) and the mounting hole is 3.0mm, while the distance between mounting holes is 40mm.Features:Steel ball wheel20mm heightDistance to 40mm mounting hole.DimensionsLength: 5cmWidth: 2.4cmHeight: 1.9cm