Small and Medium-Sized Needle Roller Bearings: Two types: 1, Metal stamping(TLA, TA, TLA=HK) 2, Steel plat(NA, TAF, TAF=NK) Small and ... Medium-Sized Needle Roller Bearings :Two types:1, Metal stamping(TLA, TA ... ...R,NAST...Z...ZZUU-NART...R...VR,NART...UUR...VUUR Small And Medium-Sized Needle Roller Bearings