3d printed ball bearing is defined as a mechanical component

A 3d printed ball bearing is defined as a mechanical component that constrains relative movement to the desired motion within the same axis and also reduces friction between moving parts. 3d printed ball bearing come in many different guises, including but not limited to the following:
Plain 3d printed ball bearing: Also referred to as a slide bearing, this is the simplest type of bearing comprising of just a bearing surface and no roller elements. They are the least expensive type for this reason. A plain bearing is compact, lightweight, and has a high load-carrying capacity.

Rolling 3d printed ball bearing: A rolling-element bearing carries the load by placing the rolling elements (typically balls or rollers) between the inner and outer bearing rings, known as races. It’s the relative motion of the two races that causes the rolling elements to move with very little rolling resistance and sliding.
Common types include spherical, cylindrical, tapered, and needle roller bearings.
Ball-bearing types include angular contact, thrust, and deep groove bearings.
Jewel 3d printed ball bearing: A type of plain bearing in which a metal spindle turns in a jewel-lined pivot hole. The hole is typically shaped like a torus. They are used widely in mechanical watches where low friction, longevity, and dimensional accuracy are vital.

Fluid 3d printed ball bearing: Load in this bearing is supported by a thin layer of rapidly-moving pressurized liquid or gas between the bearing surfaces. Zero contact between the surfaces means there is also zero sliding friction, resulting in lower overall friction as well as lower wear and vibration.
Magnetic 3d printed ball bearing: A bearing that supports a load using magnetic levitation. Magnetic bearings support moving parts without physical contact, resulting in lower friction, zero mechanical wear, and reduced vibration.
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