Metric inner ring for needle roller bearing, tapered bore 20 mm ID x 25 mm OD x 20.5 mm W, high carbon steel, general use, fits TR253825, single bearing, for linear slide units

Single metric needle roller inner ring 20 x 25 x 20.5 mm
✔️ Tapered bore, 20 mm ID, 25 mm OD, 20.5 mm W, high carbon steel

This single inner ring is a machined tapered-bore race for needle roller bearings, used in linear slide units, conveyors, and general machinery assemblies.

✅ Inner diameter: 20 mm
✅ Outer diameter: 25 mm
✅ Width: 20.5 mm
✅ Material: high carbon steel, machined finish
✅ Bore type: tapered; compatible with TR253825 and LRT series
✅ Pack: single bearing inner ring for one unit use

💡 What is an inner ring used for in a needle roller bearing for linear slide units and sealed assemblies? An inner ring provides a hardened raceway that keeps rollers aligned and reduces shaft wear. - Provides a precise, low-friction surface for needle rollers to improve load capacity and service life. - Enables tapered-bore mounting and tight fits in linear slide units and compact housings. - Works with seals, sealed ball bearing setups, or ceramic components to help keep contaminants out and improve reliability.