The IKO IRT1720 is part of the IKO Inner Rings series and belongs to the Brand > IKO > Inner Rings category path. It is designed as a metric inner ring for shell-type assembly use based on the supplied product information.
The product data identifies the bearing material as High Carbon Chrome Steel. The detailed title also describes the part as high carbon steel. The listed mass for the IRT1720 is 13.7 g.
The supplied data lists assembly with TA2020Z, TA202820Z, TLA2020Z, and YT202820. It also groups these references as TA 2020Z and TA 202820Z for TA_Z/TAM assemblies, TLA 2020Z for TLA_Z/TLAM assemblies, and YT 202820 for YT/YTL assemblies.