Oil Seals (rotary shaft seals) are available in metric and imperial sizes.
The primary function of an oil seal is to protect and enhance the lifespan of bearing systems by retaining lubricants thereby reducing friction.
It is possible to offer various sizes ranging from 6mm to 1000mm on the ID.
The standard oil seal will be a rubber covered metal inner and have one sprung lip. Should contaminants need to be kept away from the bearing system an un-sprung wiping lip can be added to many sizes. For separation of fluids two sprung lips can be incorporated, whilst for systems in excess of 0.5 bar pressure special designs are available. Standard oil seals can also have a ground metal outside diameter giving metal to metal contact in housings.
Rotary shaft seals are made in Nitrile, Viton, E.P.D.M silicone or P.T.F.E depending on the application.
For heavy machinery split seals reduce downtime, whilst for shaft mounted seals the sprung sealing element would make contact with the housing.