RNA4856 Machined Caged Needle Roller Bearing, RNA48 Series, 305 mm I.D., 350 mm O.D., 69 mm Width, High-Carbon Steel, Oil Hole, Open Type, Single Bearing (Each) for Gearboxes and Linear Slide Units

RNA4856 Caged Needle Roller Bearing, 305x350x69 mm
✔️ Single bearing, high-carbon steel, oil hole, 305 mm ID, 350 mm OD.

This machined caged needle roller bearing is a single bearing (each) used in heavy-duty gearboxes, transmissions, and linear slide units where a compact, high-radial-load solution is required.

✅ Model: RNA4856, RNA48 Metric Series
✅ Type: Machined caged needle roller, single-row, open
✅ Bore (I.D.): 305 mm; Outer (O.D.): 350 mm; Width: 69 mm
✅ Material: High-carbon steel, with oil hole for lubrication
✅ Dynamic load capacity: 486000 N; Static capacity: 1550000 N
✅ Max speed: 950 rpm; Weight: 21.45 lb; SKU: 864031

💡 What is a needle roller bearing used for in industrial gearboxes and linear slide units? Needle roller bearings give high radial load support in a tight package, making them handy where space is limited but load demands are high. Quick selection notes: - Compact solution for tight shafts and heavy radial loads, a common alternative to sealed ball bearing setups - Ideal for gearboxes, transmissions, and linear slide unit guides where a small cross-section and high load rating matter - Machined caged versions with oil holes deliver better cage guidance, lubrication access, and higher static capacity