Machined needle roller bearing NA4914 single unit, 70x100x30 mm (bore x OD x width), caged inner ring with oil holes, high carbon steel, NA49 metric series, open type, 5000 rpm max

Single machined needle roller bearing NA4914
✔️ 70x100x30 mm bore x OD x width, caged inner ring, oil holes

This is a single machined needle roller bearing intended for high radial loads in tight spaces; commonly used in transmissions, gearboxes, linear slide units and industrial shafts.

✅ Model NA4914, NA49 metric series, caged machined design
✅ Inner diameter 70 mm, outer diameter 100 mm, width 30 mm
✅ High carbon steel material, inner ring included, oil holes present
✅ Dynamic load 83200 N, static load 158000 N, max speed 5000 rpm
✅ Open enclosure, single bearing pack, weight ~1.000 lb

💡 What is a needle roller bearing used for in compact linear slide units and heavy shaft setups? Needle roller bearings are built to handle high radial loads in limited radial space while keeping friction low. Quick overview: - Ideal for compact linear slide unit guides and shafts where sealed ball bearing size is too large - Offers higher load capacity per footprint than many sealed ball bearing or ceramic options - Common in automotive transmissions, machine tools, and gearboxes for tight assemblies