Single RNA4872 machined caged needle roller bearing, 390 mm ID x 440 mm OD x 80 mm width, high carbon steel with oil hole, RNA48 metric series for linear slide units and heavy-load applications

Single RNA4872 caged needle roller bearing, 390×440×80 mm
✔️ High carbon steel, oil hole, RNA48 series, ID 390 OD 440 W 80

Single bearing for heavy-duty linear slide units and industrial shafts. Machined caged needle roller design gives high radial load capacity for conveyors, gearboxes, and machine tools.

✅ Model: RNA4872 (RNA48 metric series)
✅ Type: Machined caged needle roller, open enclosure
✅ Material: High carbon steel, with oil holes for lubrication
✅ Dimensions: ID 390 mm, OD 440 mm, Width 80 mm
✅ Loads & speed: Dynamic 680000 N, Static 2320000 N, Max speed 650 rpm
✅ Rows: 1; Weight: 34.320 lb; Pack: single bearing each

💡 What is a needle roller bearing used for in linear slide units and heavy machinery? They are handy where space is tight and you need strong radial support without a big footprint. - Ideal for linear slide unit rails, cam followers, and compact gearbox shafts - Offers higher radial capacity than many sealed ball bearing options in tight spaces - Machined caged types with oil holes make onsite lubrication and maintenance easier