... 2, Steel plat(NA, TAF, TAF=NK) NAXI1223Z Needle roller bearings :Two types:1, Metal stamping(TLA, TA, TLA=HK ... is -300C---+1000C.For general-disposition design of bearings, refer to the relevant recommendation in the applied technology ... of rolling bearings.TLA...Z*TLAM,TA...Z*TAM,BA...ZOH* ... ...R...VR,NART...UUR...VUUR NAXI1223Z Needle Roller Bearings