LRT455222 Single Inner Ring Metric 45 mm ID x 52 mm OD x 22 mm Width Tapered Bore Inner Race for Needle Roller Bearings Fits RNA4909 Assemblies High Carbon Steel Linear Slide Unit

Single metric inner ring 45 mm ID, 52 mm OD, 22 mm
✔️ Tapered bore inner race, high carbon steel, fits RNA4909, 22 mm width

This is a single LRT455222 metric inner ring (inner race) designed for machined needle roller bearings and RNA4909 assemblies. It’s commonly used in linear slide unit guides, conveyor rollers, and general industrial repair or OEM applications where a durable inner ring is needed.

✅ Part number: LRT455222 (single piece)
✅ Inner diameter: 45 mm (metric)
✅ Outer diameter: 52 mm
✅ Width: 22 mm
✅ Bore type: Tapered bore for secure fit with RNA4909
✅ Material: High carbon steel for general usage durability
✅ Suitable for: Machined needle roller bearings, linear slide unit guides

💡 What is an inner ring used for in needle roller bearing assemblies? A short intro: The inner ring (inner race) provides a hardened running surface for the rollers and keeps alignment in needle roller systems. - It supports radial loads and provides a precise surface for needle rollers to roll against, improving life and performance. - Commonly used in linear slide unit guides, conveyor rollers, and small transmission shafts as a replacement or OEM part. - Compatible with machined needle roller bearings and useful when fitting tapered-bore inner races like those matched to RNA4909.