NA4905UU Machined Needle Roller Bearing, Single Unit, 25 mm ID x 42 mm OD x 17 mm Width, Inner Ring, Sealed with Oil Hole, High Carbon Steel, Caged Metric Series

Single NA4905UU machined needle roller bearing, sealed
✔️ 25 mm ID x 42 mm OD x 17 mm W; inner ring; oil hole; sealed

This single machined-type needle roller bearing is a sealed, caged unit used on compact shafts and linear slide units to support high radial loads in automotive and industrial gearboxes.

✅ Model NA4905UU, NA49 metric series
✅ Material: High carbon steel with inner ring
✅ Size: 25 mm ID x 42 mm OD x 17 mm width
✅ Dynamic 20300 N; static 25100 N; max speed 6500 rpm
✅ Caged machined type, oil hole and synthetic rubber seals
✅ Single bearing per pack, SKU 1911538

💡 What is a sealed needle roller bearing used for?
A sealed needle roller bearing keeps grease in and dirt out while handling high radial loads in tight spaces. - Great for compact shaft supports in transmissions, pumps, and linear slide units for smooth, low-profile motion - Useful when sealed ball bearing or ceramic options don't fit due to space or load limits - Handy for applications needing oil hole lubrication, long service life, and reduced maintenance