Description
Inside every vacuum pump, there is a spinning shaft. This shaft needs to be sealed where it exits the pump housing. Otherwise, oil could leak out, and air could leak in.
The Busch Shaft Seal (Part# 487000063) is designed for this exact job. It creates a perfect, tight seal around the rotating shaft of your Busch R5 vacuum pump.
A vacuum pump relies on tight seals to create suction. The shaft seal is one of the most important seals in the entire pump.
If this seal wears out or fails, you will likely see oil leaking from the pump. This is not just messy. It can lead to low oil levels, which can cause serious damage to the pump’s internal parts. It also hurts the pump’s performance.
Replacing this seal during routine maintenance prevents these problems before they start.
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