Main material for deep groove ball bearing is high carbon chrome steel ball bearing(GCr15),this is fundamental type bearing.Normally used for electrical machine,cutting machine,electric drill and so on high speed applications.There are also special material like stainless steel and ceramic.The former mainly resist corrosion.The latter mainly resist acid-base,extreme temperature and so on harsh environments.
Inner diameter: 3mm-100mm
Outer diameter: 6mm-210mm
Width: 2mm-47mm