Inner Ring LRT404822 Metric Needle Roller Bearing, 40 mm ID x 48 mm OD x 22 mm Width, High Carbon Steel Machined Type for RNA4908 Assembly, Single Unit for Industrial Use

Inner ring LRT404822 40 x 48 x 22 mm needle bearing
✔️ Single unit, 40 mm ID x 48 mm OD x 22 mm width, high carbon steel

This is a metric inner ring (model LRT404822) for needle roller bearing assemblies, machined for use in linear slide unit setups and general industrial applications. It mates with RNA4908-type rollers and is handy for tight radial fits where sealed ball bearing swaps aren’t ideal.

✅ Model: LRT404822, Metric series
✅ Type: Inner ring, machined/tapered bore option noted
✅ Dimensions: 40 mm ID x 48 mm OD x 22 mm width
✅ Material: High carbon steel, for standard industrial loads
✅ Fits with: RNA4908 needle roller bearing assemblies
✅ Pack: single unit, SKU referenced for one piece
✅ Weight: approx 0.200 lb, machined precision fit

💡 What is an inner ring used for in a needle roller bearing assembly?

An inner ring provides the raceway surface for needle rollers and keeps rollers aligned; it’s a handy part when you need reliable radial support without moving to sealed ball bearing designs. - Provides a hardened raceway for needle roller bearings and improves load capacity - Used in linear slide unit setups, transmissions, and tight fit housings - Helps when replacing worn shafts or switching from sealed ball bearing designs