Installing Non-Contact Seals

One of the most important requirements for mounting our non-contact labyrinth seals is to make sure the inner ring is wobble free. This may be achieved by pressing the inner ring against the shoulder whenever possible. High accuracy is required between shaft and shoulder.

The following mounting methods are general enough that they can be used for all labyrinth seals, including gap seals.

Method One: Face Mounting

If the non-contact labyrinth seal can be face mounted, then we suggest using a mounting bushing to cover the seals and the inner/outer ring, in order to push the seal in place. Both rings are about the same width (+-0.1mm), therefore you will reach a good working position.

For units of extreme accuracy or if the axial clearance is of high importance we recommend a space at the mounting bushing’s aluminum outer ring for optimum positioning.

Method Two: Mounting Inside the Unit

If face mounting is not possible due to the design of the spindle or application, we recommend another way of mounting the non-contact labyrinth seals as outlined below.

Method Three: The Catch All Mounting Method

The below method for mounting can be used for applications when method one or two won’t work.

After the assembly the distance ring will be removed and both rings will be in the perfect position for high sealing efficiency.