Single metric bearing race 40x45x20 mm, high carbon steel needle roller inner ring, designed to assemble with TAF455520 & RNAF456220, suitable for general industrial and machinery use

Single metric bearing race 40x45x20 mm inner ring assembly
✔️ 40 mm ID x 45 mm OD x 20 mm W, HC steel, for TAF455520 & RNAF456220

This single inner ring (bearing race) is made from high carbon steel for needle roller applications, commonly used in linear slide units, transmissions and industrial machinery.

✅ ID: 40 mm (inside diameter)
✅ OD: 45 mm (outside diameter)
✅ Width: 20 mm (race thickness)
✅ Material: high carbon steel, machined needle roller race
✅ Series/model: LRT404520, designed to mate with TAF455520 and RNAF456220
✅ Application notes: fits needle roller setups, sealed ball bearing housings, linear slide unit use

💡 What is an inner ring for needle roller bearings used for in linear slide units and industrial machinery? It provides a hardened running surface that keeps rollers aligned, controls clearance, and cuts wear under radial loads. Here's why it's handy: - Supports radial loads and enables compact linear slide unit layouts for tight machinery spaces. - Pairs with needle rollers, sealed ball bearing assemblies, or ceramic elements to improve motion precision and reduce friction. - Simplifies assembly and maintenance when used with matching parts like RNAF456220 or TAF455520.