The B-LOC B0301 Shrink Disc, SD Series, is a shrink-disc coupling sized 30-10 that clamps a hub to a 30 mm shaft. Manufacturer catalogs list a 1.181 in (30 mm) bore with a tight +0 / -0.002 tolerance and show mounting using M5 x 18 fasteners. This model is intended for industrial drive assemblies that require a precise, reversible shaft-hub connection using standard shrink-disc clamping patterns.
