It may seem logical that compressing an o ring more tightly would improve its sealing ability. In practice, excessive compression can create problems, especially in applications involving repeated movement. O ring compression, commonly called

An O-ring may look correctly installed and still fail after the system begins operating under pressure. One possible cause is extrusion. Extrusion occurs when part of the rubber ring is forced into the clearance between mating components. Under

A standard rotary shaft oil seal is generally designed to retain lubricant under conditions close to atmospheric pressure on its air side. It should not automatically be used in a pressurized housing. This is an important distinction when selecting

An oil seal can leak even when its sealing lip shows no obvious cracks, cuts, or visible wear. In some cases, the problem is not the seal itself but the shaft surface running against it. The sealing lip and shaft form a working contact area. For

Not every oil seal failure originates from excessive pressure or improper installation. In many cases, the root cause can be traced to a less obvious issue: incompatibility between the sealing material and the substances it encounters during

Many people assume that an oil seal is simply an oil seal. Yet the operating conditions found in automotive applications are often far more demanding than those encountered in general industrial equipment. This is one reason why automotive oil seals