The LRTZ253031 is an IKO inner ring within the Inner Rings series. It is a metric inner ring intended for general usage and is listed for assembly with RNA 6905UU bearings.
This product is an IKO inner ring, model LRTZ253031, categorized under Brand > IKO > Inner Rings. It is identified as an inner ring rather than a complete bearing assembly.
The supplied data lists a 25 mm inside diameter, 30 mm outer diameter, and 31 mm width. The associated shoulder and fillet-related values are rs min. 0.30 mm, da min. 27.0 mm, and da max. 29.0 mm.
The LRTZ253031 inner ring is specified as High Carbon Chrome Steel. The product introduction also describes it as a metric inner ring for general usage and for assembly with RNA6905UU.
The structured product data identifies the bearing material as High Carbon Chrome Steel. No additional material grade, treatment, certification, or performance claim is provided in the supplied data.