INA Needle Roller Bearings INA Needle bearing type: HK. Type. BK. Type. NK. Type. NKS, TypeNA, TypeRNA, TypeNAO, TypeRNAO, TypeNKI, TypeNKIS, TypeEtc. IKO Needle bearing type: NAType, RNAType, TAFType, TRType, BRType, KT, EGType, KTV, EGTypeEtc. Needle Roller Bearing Applications: Widely used in automobiles, motorcycles, mopeds, electric tools, textile machinery, agricultural machinery, industrial sewing machines,