NSK/NTN/KOYO NF303EM-NF305EM Cylindrical Roller Bearings – High-Precision, Heavy-Duty
Basic Info
| Inner Diameter | 17 mm |
| Outer Diameter | 47 mm |
| Width | 14 mm |
| Model No. | NF303EM |
| Type | Cylindrical Roller Bearing |
| Material | Bearing Steel |
Introduction
NF303EM is a high-precision single-row cylindrical roller bearing made of bearing steel, designed for radial load applications. It features an open seal type, oil/grease/dry lubrication options, and precision ratings from P0 to P2. Originating from Japan and branded NSK, it offers reliable performance in OEM/ODM industrial use.

















