... printing machinery, tobacco machinery, engineering machinery, sewing machinery, food- Bearing NO.d(mm)D(mm)H(mm) NAOL 644(4744 ... bearings (NKXR,NKXR-Z) Radial needle roller-thrust cylindrical needle roller bearings (ZARN) Thrust-cylindrical needle roller bearings (811,812,WS, ... ,KR,KS,KBK,KZK) Drawn cup needle roller clutches and assemblies (HF,HFL) Inside rings (IR, LR) High Quality Needle Bearing 644