RNA4909UU Caged Machined Needle Roller Bearing, 52 mm ID x 68 mm OD x 22 mm W, High Carbon Steel, Oil Hole with Seals, Single-Row RNA49 Metric Series, Single Bearing (Each)

RNA4909UU Caged Needle Roller Bearing, Single Each
✔️ 52 mm ID x 68 mm OD x 22 mm W, high carbon steel, oil hole, seals

This single caged, machined needle roller bearing fits tight radial spaces like linear slide units, gearboxes, and automation gear where sealed support and compact profile matter.

✅ Model: RNA4909UU; RNA49 Metric Series; single-row design
✅ Inner diameter 52 mm, outer diameter 68 mm, width 22 mm
✅ Material high carbon steel, synthetic rubber seals, oil hole feature
✅ Dynamic capacity 38900 N, static capacity 63400 N, max speed 3500 rpm
✅ Caged machined type, single bearing sold each, ideal for sealed ball bearing replacements

💡 What is a sealed needle roller bearing used for in linear slide units? A sealed needle roller bearing keeps lubricant in and contaminants out for longer life. - Provides compact radial support for low-profile shafts in linear slide unit setups - Reduces maintenance frequency by keeping grease and oil where it belongs - Handles high radial loads with a small envelope, handy for tight machinery spaces