... ball bearing 40*80*18mm Chrome steel , Abec-1, C0 Low noise, Good hand feeling long life Ball Bearing 6208ZZ GCr15 40*80 ... *18mmChrome steel , Abec-1, C0Low noise, Good hand ... tools, dynamotor, minerals machinery, farm machinery, home electric appliace, etc. long life Bearing 6208ZZ, GCr15