This radial shaft seal prevents lubricant leakage and blocks contaminants at the point where a rotating shaft passes through a housing. It is built with a bore diameter of 12.0 mm and an outside diameter of 19.0 mm, giving a net mass of 0.9 g. The compact cross-section suits tight housing bores where the sealing element must fit within a narrow radial space. Designation G12X19X3-C indicates the sealing lip geometry defined by INA for this size range, matching the 12 mm shaft to a 19 mm housing bore. The seal is intended to run directly on the rotating shaft surface, maintaining contact through the lip to retain grease or oil within the bearing arrangement while excluding dust and moisture ingress from the outside environment.