LRT424720 Inner Ring for Needle Roller Bearings, Metric 42 mm ID x 47 mm OD x 20 mm Width, High Carbon Steel, General Purpose, Fits TAF475720, Single Piece

Inner ring LRT424720 for needle bearings, single
✔️ 42 mm ID x 47 mm OD x 20 mm W, high carbon steel, metric

This single inner ring is a precision machined metric inner race for needle roller bearings, used in gearboxes, transmissions, and linear slide unit assemblies.

✅ Part number: LRT424720, metric series
✅ Fits companion ring TAF475720 for assembly
✅ Inside diameter: 42 mm; Outside diameter: 47 mm
✅ Width: 20 mm; machined needle roller bearing race
✅ Material: high carbon steel for general usage

💡 What is an inner ring used for in needle roller bearing assemblies? An inner ring provides the raceway for rollers and helps support and align rotating shafts. - It creates the rolling surface that reduces friction and wear in bearing assemblies. - Often found in linear slide unit setups, gearboxes, and sealed ball bearing retrofits. - Use hardened steel rings to boost life when paired with ceramic or hybrid rollers. - Handy for precise, machined applications where tapered-bore mounting is required.