LRTZ505823 Inner Race (Metric) 50 x 58 x 23 mm, High Carbon Steel, Machined for RNA4910UU Needle Roller Bearing Assembly, Single Piece, General industrial use replacement part

LRTZ505823 inner race, 50 x 58 x 23 mm metric ring
✔️ Single piece inner race, high carbon steel, fits RNA4910UU

This single inner ring (LRTZ505823) is a machined metric race for needle roller bearing assemblies and linear slide units, commonly used in industrial automation and equipment maintenance.

✅ Model: LRTZ505823
✅ Type: Metric inner race for RNA4910UU assemblies
✅ Bore (ID): 50 mm
✅ Outside diameter (OD): 58 mm
✅ Width: 23 mm
✅ Material: High carbon steel, machined finish
✅ Pack: Single piece, sold each

💡 What is an inner ring used for in needle roller bearing assemblies and linear slide units? A durable raceway that keeps rollers aligned and lowers wear for smoother operation. - Provides a hardened, precise raceway for needle roller bearings and consistent rolling contact - Helps preserve preload and alignment in linear slide unit setups and machined bearing assemblies - Works alongside sealed ball bearing designs or ceramic upgrade options for longer service life - Handy for quick replacement, maintenance, and OEM repairs in automation and industrial gear