... TLA=HK) 2, Steel plat(NA, TAF, TAF=NK) Precision needle roller bearings :Two types:1, Metal stamping(TLA, TA ... the special structural requirements of customers as well.Product Precision Accuracy:Dimensional tolerance and geometrical accuracy is based on GB/ ... special requirements of bearing running clearance, inscribed circle and precision grade, please contact this company.Materials:Material for needle ...