19746 SMALL BORE SEALS Radial shaft seal with metal case and single sealing lip, for grease Radial shaft seals are used between rotating and stationary machine components, or between components in relative motion. HM21 seals are designed with a sealant coated metal case. They have a conventional double sealing lip made of elastomer. Typical applications include grease lubricated agriculture machinery. Maximise the exclusion of contamination Accommodate low speed Easy installation