Balls for a ball bearing are made of Automobile Engineering Mcqs November 23, 2019 BILAL KHATTAK0 A.Stainless steel B.Carbon chrome steel C.High speed steel D.Stainless steel E.Mild steelRelated Mcqs:Steel balls for ball bearings are generally made ofSprings are made ofRails for railway track are made ofWhich material has the best damping capacityDies for drawing are generally made ofWhile using HSS tools on a lathe, cutting speed will be maximum when machiningPreheating of material to be welded is necessary in case ofAs per ISS : designation T 70 W 18 4V 1 isIf the rake angle on a HSS lathe tool is 25 degrees the materials being machined isPipes for bicycle frames are made of