Heavy duty roller bearing NAG4911 55 mm ID x 80 mm OD x 25 mm W, full-complement high-carbon steel with oil holes, 2-row uncaged metric NAG series, 48100 N dynamic / 77700 N static capacity

Heavy-duty roller bearing NAG4911, single unit
✔️ 55 mm ID x 80 mm OD x 25 mm W; full complement; oil holes

This single-unit, full-complement roller bearing is built for heavy radial loads in industrial gearboxes, conveyor drives, and linear slide unit setups where oil lubrication and an open enclosure are preferred.

✅ Model: NAG4911, NAG Metric Series, 2-row uncaged
✅ Dimensions: 55 mm ID x 80 mm OD x 25 mm width
✅ Material & design: High carbon steel, open enclosure with oil holes for lubrication
✅ Load & speed: 48,100 N dynamic capacity, 77,700 N static capacity, max 3,500 rpm
✅ Operating range: -20 to 120 °C; heavy duty full-complement type; weight 0.870 lb; single bearing pack

💡 What is a roller bearing used for in heavy-duty machinery and linear slide unit applications? Roller bearings support high radial loads and guide rotating shafts, making them handy for rugged, medium-speed systems. Here’s how they help in common setups: - Carry concentrated radial loads in gearboxes, conveyor drives, and pillow block bearing housings for reliable uptime - Fit linear slide unit arrangements that need open-enclosure lubrication and oil-hole access for grease or oil top-up - Consider sealed ball bearing or ceramic options when contamination control or higher speed performance is required - Match dynamic/static ratings and temperature limits for longer service life and predictable maintenance intervals