The IKO LRTZ253025 is listed in the Inner Rings product series and category path. It is a metric inner ring identified for general usage and is specified to assemble with GTR 304425.
The supplied product data lists the LRTZ253025 with a shaft diameter and inside diameter of 25 mm, an outer diameter of 30 mm, and a width of 26 mm. The listed bearing material is high carbon chrome steel; the detail description also identifies the component material as high carbon steel.
The product data includes a minimum chamfer dimension of 0.30 mm, a minimum da value of 27.0 mm, a maximum da value of 29.0 mm, and a listed mass of 42.0 g. These values can be reviewed against the mating assembly requirements before selection.