ACROBOTIC N20 3/8″ Metal Ball Caster Wheel


  • 3/8″ diameter metal caster wheel
  • Size: the housing is 3/4″ (max. width) × 0.4″ (height)
  • #2 mounting screws included; 4 × 1/8″ rollers allow for frictionless movement
  • Perfect for robotics projects!



This listing is for a small, light ball caster wheel with an internal 3/8″ diameter metal ball. The total height of the assembled caster is 0.4″.

This ball caster kit includes a white ABS plastic housing, a 3/8″ diameter metal ball, a spacer (1/16″ thick), and two #2 screw sets.

The two included #2 screws can be used to mount the ball caster to any surface (the distance between the screw holes is 0.53″). Four (4) smaller 1/8″ diameter metal balls are included to allow for frictionless rolling movement of the main caster. Note that our ball casters are designed for smaller vehicles: 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.


  • Diameter: 3/8″
  • Color: white enclosure w/ chrome metal ball
  • Mounting: 2 × #2 screws
  • Weight: 0.14 oz
  • Caster type: metal
  • Perfect for robotics projects!

Additional information

Product Dimensions

0.45 x 0.66 x 0.2 inches; 0.1 Ounces

Date First Available

March 31, 2017






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