Installation methods play an important role in the function of oil seals. A good seal design without the proper installation method can lead to serious damage to the seal structure, resulting in malfunction or unwanted leakage. It is necessary to use the correct installation tools or follow the proper installation instructions.

The assembly of the sealing rings must be done with great care. The seal, shaft and housing must be clean, as dirt that may enter the system during assembly between the sealing lip and the shaft can cause leakage.

As the inner diameter of the seal must be stretched during assembly, the shaft must be chamfered.

• Angle for the chamfer should be approximately 30° to 50°.
• When there is a groove in the shaft, a mounting sleeve must be used to protect the sealing edge.
• The housing chamfer must be at least 1 mm long.
• The sides must be robust.

During assembly, it is essential to avoid damage to the seal. If the seal has to pass over irregularities, such as threads or splines, the shaft must be covered with an assembly sleeve, such as those offered in our repair kits for worn shafts.

The seal must be pressed evenly into the housing. Preferably, an adapted fitting tool should be used, so that the pressure is transferred through the metal-reinforced part of the seal. It is recommended to use hydraulic presses or automated pneumatic pressure presses for pressing. If the installation force is provided manually by the operator, contact plates should be used. Without the contact plate, the manually operated shaft may damage the seal or cause leakage.