NAU4906 caged roller bearing single unit, 30 mm ID x 47 mm OD x 17 mm width, double-row heavy-duty high-carbon steel, open type with outer ring oil holes, 12000 rpm max, metric NAU series
✔️ Double-row caged roller, high carbon steel, oil holes, 12000 rpm
This single caged roller bearing (NAU4906) is a heavy-duty double-row unit used in industrial gearboxes, conveyors, and compact linear slide units for radial load support and lubricated service.
✅ 30 mm inside diameter (ID)✅ 47 mm outside diameter (OD)
✅ 17 mm width, double-row design
✅ High carbon steel rollers and cages
✅ Open enclosure with outer ring oil holes for lubrication
✅ Dynamic load rating ~13000 N, static ~16200 N
✅ Max speed 12000 rpm, temp range -20 to 120 C
✅ Metric NAU series model NAU4906, single bearing per unit
💡 What is a double-row caged roller bearing used for in heavy machinery and linear slide units?
Double-row caged roller bearings are handy when you need compact, high-radial-capacity support with easy oiling access. - Great for heavy-duty gearboxes, rolling mills, and confined linear slide units that demand high radial stiffness - Offers higher load capacity than single-row or sealed ball bearing options while allowing oil-feed via outer ring holes - Works well in systems where ceramic elements aren’t needed and robust steel rollers improve life under shock and vibration