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RAM Electronics's Description
Metal caster wheel 20mm, is 1mm thick steel plate stamping on the machine,
load 15KG no problem, and exquisite workmanship, this caster strong and
lightweight, 20mm height wheel body, with a total weight of only 40gm.
This allows the robot to walk or move to a more flexible and comfortable,
and the other parameters are as follows:
* Fixed hole position: 4mm
* Fixed hole center distance: 40mm
* Wheel body height: 20mm
* Bull's eye ball diameter: 15mm
* Bull's eye ball protrusion height: 4mm
* Slide the small steel ball number: 40
* Universal wheel total weight: 37gm
* The maximum load: 15KG