Inner Ring LRT556325 Metric 55 mm ID x 63 mm OD x 25 mm Width Single High Carbon Steel Bearing Component for Assembly with RNA4911 Needle Roller and Linear Slide Units

Single metric inner ring 55 mm x 63 mm x 25 mm
✔️ ID 55 mm, OD 63 mm, Width 25 mm, High carbon steel, Fits RNA4911

This single inner ring is the inner race for needle roller bearing assemblies, made for general industrial use in linear slide units, conveyors, gearboxes, and automated machinery. Pack: single bearing inner ring for one assembly.

✅ Model LRT556325, LRT Metric Series
✅ Tapered bore (machined) to match RNA4911 assemblies
✅ Material: High carbon steel for general usage
✅ Dimensions: ID 55 mm, OD 63 mm, Width 25 mm (single piece)
✅ SKU 861733, machined needle roller inner ring, weight ~0.320 lb each

💡 What is an inner ring used for in needle roller bearings and linear slide units?
It provides the hardened inner race for rollers and keeps the bearing components properly aligned.
- Keeps needle rollers aligned and supplies a precision inner race for accurate load transfer and longer service life. - Handy for linear slide unit installs, cam followers, compact gearbox assemblies, conveyors, and automation gear. - Use with compatible RNA series rollers; consider sealed ball bearing or ceramic alternatives when contamination resistance or lower friction is needed.