2.75X3.875X0.5 R21 Imperial Oil Seal

The rotary shaft seal is constructed with a metal casing which is coved in a rubber material and can be used on any size of shaft. The rubber covering prevents the metal casing from rusting and helps prevent damage to the housing during assembly. This standard rotary shaft seal comes single lipped. The single lip seal R21 seals against internal media which provides protection against dirt and dust.