1.Stainless steel, carbon steel motor shaft 2.Standard: ASTM, AISI, BS, DIN, JIS, NF 3.100%QC ... steel , Stainless steel,brass or as per customer’s requirements.2) Diameter: 0.3-17mm, tolerance:+/-0.001mm3) Roundness: 0.001mm4 ... AE.run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Shaded pole motor shaft