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Rolling-element bearing
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== Overall design == '''Design description''' Bearings, especially rolling element bearings, are designed in a similar fashion across the board consisting of the outer and inner track, a central bore, a retainer to keep the rolling elements from clashing into one another or seizing the bearing movement, and the rolling elements themselves.<ref name=":0" /> The internal rolling components may differ in design due to their intended purpose of application of the bearing. The main five types of bearings are ball, cylindrical, tapered, barrel, and needle.<ref name=":1" /> Ball - the simplest following the basic principles with minimal design intention. Important to note the ability for more seizures is likely due to the freedom of the track design. Cylindrical - For single axis movement for straight directional movement. The shape allows for more surface area to be in contact adding in moving more weight with less force at a greater distance. Tapered - Primarily focused on the ability to take on axial loading<ref>[https://www.ferrovial.com/en/stem/axial-load/#:~:text=Axial%20load%20is%20defined%20as,structure%2C%20producing%20a%20uniform%20effort. axial loading]</ref> and radial loading.<ref>[https://blog.orientalmotor.com/motor-sizing-basics-part-4-radial-load-and-axial-load#:~:text=Radial%20Load%20is%20defined%20as,to%20the%20motor%20shaft%20axis). radial loading]</ref> It does this by using a conical structure enabling the elements to roll diagonally. Barrel - Provides assistance to high radial shock loads that cause misalignment and uses its shape and size for compensation.<ref>{{Cite web |title=Barrel roller bearings |url=https://www.schaeffler.us/us/products-and-solutions/industrial/product-portfolio/rolling_and_plain_bearings/barrel_roller_bearings/ |access-date=2024-02-26 |website=www.schaeffler.us |language=en-US}}</ref> Needle - Varying in size, diameters, and materials these types of bearings are best suited for helping reduce weight as well as smaller cross sections application, typically higher load capacity than ball bearings and rigid shaft applications.<ref name=":2" />
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