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Radial shaft seals sit between rotating and stationary components, or two components in relative motion. They have two main parts. One is a cylindrical outer covering with an interference fit that seals statically against the housing bore. The second, a sealing lip, seals dynamically and statically against the shaft.
SKF industrial shaft seals and accessories are divided into three main groups: Radial shaft seals Axial shaft seals and Wear sleeves. Different seal types within these groups are described with their respective design, materials and applications. Product descriptions are followed by product tables. It should be noted, however, that
Rotary shaft seals provide sealing and wiping functionality for rotating and swiveling movements under low pressure and high velocity. They perform two essential functions. The primary function is to retain the bearing or system lubricant in the system to avoid leakage.
Technically anything that is sealing a shaft, be it an O-ring, a lip seal, braided packing, or a mechanical face seal can all be called a shaft seal. So let's discuss just how each of these is used. Let's start with the simplest first.
A mechanical seal is simply a method of containing fluid within a vessel (typically pumps, mixers, etc.) where a rotating shaft passes through a stationary housing or occasionally, where the housing rotates around the shaft.
Mar 1, 2001 · A guide to shaft seals. Machines require rotating shaft seals to retain lubricants and prevent foreign particles from entering sealed cavities, which damage machinery and lead to premature failure. By Joseph L. Foszcz, PE/CPE, Senior Editor, Plant Engineering Magazine March 1, 2001.
Jul 2, 2021 · Rotary shaft seals, also called oil seals or just shaft seals, are used to close and seal the gap between stationary and rotating components. They prevent oil leakage and make sure no contaminants go through the clearance.
