Single Caged Roller NAU4909UU Double-Row Bearing, 45 mm ID x 68 mm OD x 22 mm W, High-Carbon Steel, Sealed, Outer Ring Oil Holes for Heavy Duty Industrial Use

Single double-row caged roller bearing NAU4909UU
✔️ 45 mm ID x 68 mm OD x 22 mm W; sealed; outer ring oil holes

This listing is for a single NAU4909UU double-row caged roller bearing, a sealed heavy-duty part commonly used in industrial gearboxes, conveyors, and linear slide units where robust radial capacity and relubrication access matter.

✅ Model: NAU4909UU
✅ Double-row caged roller configuration for high radial loads
✅ I.D. 45 mm, O.D. 68 mm, Width 22 mm
✅ High carbon steel rings and rollers for heavy-duty service
✅ Sealed enclosure with synthetic resin rubber seals
✅ Outer ring with oil holes for easy relubrication
✅ Dynamic load capacity 24,800 N; static load capacity 32,800 N
✅ Maximum speed 3,500 rpm; temperature range -20 to 120 °C
✅ NAU metric series; works well in sealed ball bearing setups and linear slide unit guides
✅ Single bearing per pack (one bearing)

💡 What is a caged roller bearing used for in industrial machinery? Caged roller bearings are handy when you need strong radial support and straightforward relubrication options. - Ideal for heavy-duty gearboxes, conveyors, and linear slide unit guides where sealed ball bearing performance is required. - Outer-ring oil holes let maintenance staff top up lubricant without teardown, improving uptime and service life. - Choose sealed designs to guard against contamination; consider ceramic rollers for high-speed or corrosive environments.