Inner Ring for Needle Roller Bearing Assemblies, Metric 35 mm I.D. x 42 mm O.D. x 20 mm Width, High Carbon Steel Tapered Bore, Fits RNA4907, Single Unit

Metric inner ring 35x42x20 mm, single bearing
✔️ 35 mm I.D., 42 mm O.D., 20 mm width, high carbon steel, fits RNA4907

This machined metric inner ring is a replacement race for needle roller bearing assemblies used in linear slide units, conveyors, and industrial powertrains. Sold as a single unit for repair or build projects.

✅ Type: Inner ring, tapered bore (metric)
✅ Dimensions: 35 mm I.D. x 42 mm O.D. x 20 mm width
✅ Material: High carbon steel, machined finish
✅ Compatibility: Designed to assemble with RNA4907 needle roller bearing
✅ Series/model: LRT354220 (metric series)
✅ Pack size: Single unit, sold individually
✅ Weight & SKU: 0.140 lb, SKU 861327

💡 What is an inner ring used for in needle roller bearing assemblies? An inner ring supplies the precision raceway that supports rollers and carries radial load for smooth rotation. This short intro shows where it helps most. - Improves roller alignment and load distribution in needle bearing setups, boosting service life. - Works with linear slide unit applications and sealed ball bearing housings where a tapered bore is required. - Can be matched with ceramic or steel rollers depending on application needs for reduced friction and long life.