Machined caged needle roller bearing RNA4930, 170 mm ID x 210 mm OD x 60 mm width, high carbon steel, oil hole, open single-row type for linear slide units and industrial shafts

Machined caged needle roller bearing, single unit
✔️ RNA4930, 170 mm ID x 210 mm OD x 60 mm W, high carbon steel, oil hole

Single open machined caged needle roller bearing for heavy-duty industrial shafts and linear slide units, used in conveyors, gearboxes, and machine tools.

✅ Model RNA4930, RNA49 metric series; open, single-row caged design
✅ Dimensions: 170 mm ID x 210 mm OD x 60 mm width
✅ Material: high carbon steel with oil holes for lubrication
✅ Dynamic load capacity 324000 N; static 712000 N; max speed 2500 rpm
✅ Use cases: linear slide units, industrial shafts, conveyors, gearboxes
✅ Pack size: single bearing; net weight 9.000 lb; SKU 863896

💡 What is a needle roller bearing used for in industrial linear slide units? Needle roller bearings carry high radial loads in tight spaces and are handy when shaft diameter or envelope size is limited. Quick pointers to guide selection and care: - High load capacity in narrow cross sections, ideal for linear slide units and industrial shafts - Consider sealed ball bearing alternatives when contamination or sealing is critical - Look at ceramic rollers for higher speed or improved heat resistance in special applications - Use oil holes and scheduled lubrication to extend life and performance