LRT172120 Inner Ring Metric Needle Roller Bearing, 17 mm ID x 21 mm OD x 20 mm W, High Carbon Steel Inner Race for Assembly with TAF212920, Single Piece, General Purpose

LRT172120 metric inner ring, 17 x 21 x 20 mm single
✔️ High carbon steel inner ring, for TAF212920 assembly

This single metric inner ring (inner race) is made for needle roller bearing assemblies, commonly used in industrial machines and linear slide unit setups for compact, reliable shaft support.

✅ Model: LRT172120, metric inner ring, tapered bore
✅ Dimensions: 17 mm ID, 21 mm OD, 20 mm width
✅ Material: High carbon steel, machined needle roller race
✅ Fits with: Designed to assemble with TAF212920 bearings
✅ Usage: General industrial, linear slide unit, sealed ball bearing applications
✅ Pack: Single piece, weight approx 0.040 lb each

💡 What is an inner ring used for in needle roller bearing assemblies? An inner ring provides the hardened raceway that needle rollers run on, keeping load distribution accurate and protecting the shaft from wear.

Quick overview: - Provides a durable inner race for needle roller bearings, improving life and load handling - Works well in sealed ball bearing and linear slide unit configurations for compact systems - Pairs with compatible assemblies like TAF212920 and supports applications needing high carbon steel parts