Single Metric Inner Ring Tapered Needle Roller Bearing 70 mm ID x 80 mm OD x 30 mm Width High Carbon Steel Sleeve for Assembly with RNA4914 General Machine Use

Single metric tapered inner ring 70x80x30 mm for RNA4914
✔️ 70 mm ID x 80 mm OD x 30 mm width, high carbon steel

This single machined inner ring (tapered race) fits needle roller bearing assemblies and is typically used in gearboxes, machine tools, and linear slide unit setups where a compact, high-load inner race is needed.

✅ Model: LRT708030, LRT Metric Series
✅ Dimensions: 70 mm ID, 80 mm OD, 30 mm width
✅ Material: high carbon steel, machined inner sleeve
✅ Fits with: to assemble with RNA4914 needle roller bearing
✅ Pack: single inner ring for one assembly

💡 What is an inner ring used for in a needle roller bearing assembly? An inner ring provides the hardened raceway and accurate shaft fit that needle rollers need to run properly. Here’s a quick breakdown of why it’s handy: - Provides a hardened raceway for rollers to improve load capacity and service life, often used alongside sealed ball bearing or ceramic options. - Ensures precise shaft fit and alignment for gearboxes, linear slide units, and other machine tool applications. - Simplifies assembly with RNA-style needle roller sets and other linear or rotary bearing solutions.