25X33X4 HM4 R 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. HM4 seals are designed with a single metal case. They have a conventional single sealing lip made of elastomer. Typical applications include grease lubricated agriculture machinery. Maximise the exclusion of contamination Accommodate low speed Easy installation