... cage 4) Precision: P0, P6,p5 5) Suffixes: a) "K", ID of bearing with tapered ,the taper is 1:12 ... ,or brass cage4) Precision: P0, P6,p55) Suffixes: a) "K", ID of bearing with tapered ,the taper is 1:12 ... ", adapter sleeves.The combined unit is for K series bearnigs. E.G. 1205KH b) "H", adapter sleeves.The combined unit is ... services.Regards:Mandy Lee WELCOME your inquiry and chating online at any time!