KT182216 Needle roller cages for general usage: Two types: 1, Metal stamping(TLA, TA ... , Steel plat(NA, TAF, TAF=NK) KT182216 Needle Roller Cages for General Usage :Two types:1, Metal stamping(TLA, TA, ... is GCr15 bearing steel, quench-hardening HRC61---65.Material for cages is quality low-carbon steel or reinforced nylon.Special ... R...VR,NART...UUR...VUUR KT182216 Needle Roller Cages for General Usage