... printing machinery, tobacco machinery, engineering machinery, sewing machinery, food- Bearing NO.d(mm)D(mm)H(mm) NAOL 644(4744)220380175processing ... Not obstructs side needle roller bearings(NAO,RNAO) Needle roller-thrust ball bearings (NX,NX-Z,NKX,NKX-Z) Needle ... (NKXR,NKXR-Z) Radial needle roller-thrust cylindrical needle roller bearings (ZARN) Thrust-cylindrical needle roller bearings (811,812,WS ...