... 4")Grade Available: G5, G10 - G1000Application: Universal for many application. For example: balls &roller bearings, Linear montion, Balls ... Hardness: Hardness is HRC 60 min. Referencethe accompanying chart for minimum casedepth.Size Available: 2.0mm - 50mm ... Available: G40 -- G1000Application: Moderate loads and alow rotatingparts, for example: castors, conveyors, rollerskates, drawer slides, seat ...