RNA4980 Machined Needle Roller Bearing, 450 mm ID x 540 mm OD x 140 mm Width, High-Carbon Steel Caged with Oil Holes, RNA49 Metric Series, Open Enclosure, Dynamic Load 1,590,000 N

RNA4980 machined needle roller bearing 450x540x140mm single
✔️ 450 mm ID, 540 mm OD, 140 mm W; caged, oil holes; 1-row

This single caged machined needle roller bearing is built for heavy shafts and linear slide unit guides. It’s made of high-carbon steel for strong radial support in open-enclosure industrial gearboxes and conveyors.

✅ Model: RNA4980, RNA49 Metric Series
✅ Inner diameter: 450 mm; Outer diameter: 540 mm; Width: 140 mm
✅ Material: High-carbon steel; Type: caged machined, open enclosure
✅ Dynamic load capacity: 1,590,000 N; Static load capacity: 4,270,000 N
✅ Max speed: 500 rpm; Rows: 1; Oil holes included for lubrication
✅ Single bearing unit; approx weight 29.36 lb; ideal for shaft and slide applications

💡 What is a machined needle roller bearing commonly used for in industrial linear slide unit and heavy shaft applications?
Needle roller bearings support high radial loads in compact spaces while keeping rotation smooth and compact. Short intro sentence: Handy for machines that need big load capacity without bulky diameters.
- Ideal for linear slide unit guides, cam followers, conveyors, and gearbox shafts
- Works well with sealed ball bearing housings or in open enclosures with oil holes for grease or oil lubrication
- High-carbon steel offers strength for heavy-duty use; consider ceramic elements for higher-speed or corrosive setups