Stainless steel caster wheel usually use on Acid corrosion condition. We need prevent the stainless steel caster from rust.So the material choosing is very important. Consider both rust resistance function and cost XinChen Caster Wheel Company suggestion is

USE SS304 material as mounting plate and Bracket material.
USE SS302 as ball and bolt material
The best bearing material is Teerling Bearings

If have any more question about stainless steel caster wheel,could contact us freely.

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