The IRT17102 is an IKO Inner Ring from the Inner Rings product series. The order number is listed as IRT1710-2, and it is described as a metric inner ring for shell-type assembly with TA2210Z.
The product data lists the IRT17102 for assembly with TA 2210Z under the TA_Z and TAM assembled-bearing group. No bearing is listed for the TLA_Z, TLAM, YT, or YTL groups. The listed mass is 12.4 g, shown in the supplied data as 12,4 g.