The IKO IRT1520 is part of the IKO Inner Rings series and is listed for assembly with the TA1820Z. It has a metric bore and is identified by order number IRT1520.
This component is an inner ring manufactured under the IKO brand. The supplied product data places it in the category path Brand > IKO > Inner Rings.
The inner ring has a 15 mm inside diameter, an 18 mm outer diameter, and a 20.5 mm width. The stated mass is 12.3 g, and the minimum corner dimension is 0.3 mm.
The supplied product data identifies the material as high carbon steel in the detailed title and as high carbon chrome steel in the structured material field. The stated assembly reference is TA1820Z; no assembled bearing is listed for the TLA_Z, TLAM, YT, or YTL references in the supplied data.
The product data lists TA 1820Z under assembled bearings for TA_Z, TAM. The fields for TLA_Z, TLAM and YT, YTL show no listed assembled bearing.