The IKO LRT354034 is an inner ring in the IKO Inner Rings product series. It is listed as a metric, general-usage inner ring intended to assemble with RNAFW405034.
The bearing material is listed as High Carbon Chrome Steel, while the title introduction references high carbon steel. The product data identifies RNAFW 405034 as the assembled bearing. The category path is Brand > IKO > Inner Rings.