... component needle roller bearings ( F, FH, MF, MFH, FY series)Drawn cup roller clutches / clutch and bearing assemblies ( HF, ... needle and cage assemblies for pin connecting rod ( KZK, KBK series)Heavy duty needle roller bearings (NK, NKS, RNA49, RNA69 ... .The shoulder of the stud and the surface retaining ring on the stud form the guiding faces on the two sides of the outer ring.When the curve rollers ...