RNA4909 Machined Caged Needle Roller Bearing, 52 mm ID x 68 mm OD x 22 mm Width, High Carbon Steel, Open Single Bearing Unit with Oil Hole, SKU 862399

Single RNA4909 caged needle roller bearing 52 mm ID
✔️ 52 mm ID x 68 mm OD x 22 mm W, high carbon steel, oil hole

This single RNA4909 machined caged needle roller bearing is a compact, high-load option used in linear slide units, precision shafts, gearbox assemblies, and constrained industrial spaces where thin cross-sections and strong radial capacity are needed.

✅ Type: Caged machined, open, single-row
✅ Series/model: RNA49 metric series, RNA4909
✅ Dimensions: 52 mm ID x 68 mm OD x 22 mm width
✅ Material: High carbon steel; dynamic capacity 43500 N, static capacity 73300 N
✅ Max speed 7500 rpm; oil holes for lubrication; weight 0.430 lb; SKU 862399

💡 What is a needle roller bearing used for in linear slide units and compact shafts? Needle roller bearings support high radial loads in tight spaces and are handy when a thin profile and strong load capacity are needed. - Ideal for linear slide unit guides, compact shafts, gearbox bearings, and other constrained assemblies - Offers higher radial load capacity than many sealed ball bearing solutions while saving radial space - Preferred when ceramic options are unnecessary; caged machined types simplify lubrication and maintenance