- Moreover, the 7mm spark plug wires are designed to withstand high temperatures and mechanical stress, making them more durable and less prone to degradation over time
7mm spark plug wire. Their robust construction contributes to a longer lifespan, reducing the need for frequent replacements and maintenance costs.
1) Common seal types and their features
Several variables must be considered when selecting oil seals. The physical dimensions and materials will vary depending on the environment of use. In addition, oil seals must remain lightweight, compact, and exhibit high self-lubrication performance.
VMQ, also known as silicone, is also used for oil seals, but this is less common because the mechanical strength of VMQ is low and this material has poor wear-resistance This makes it less suitable for dynamic applications, but it can withstand fairly low and high temperatures from -60 °C to 200 °C. Many types of VMQ are also suitable for contact with pharmaceutical and food products, so VMQ is an option worth considering. VMQ oil seals are usually available on request.



Polytetrafluoroethylene (PTFE, Teflon®)
First, an elastomer, most often nitrile, is vulcanised to a metal ring. This creates a stiffening effect that includes a specialised metal tension spring directly behind the sealing lip, keeping the oil seal firmly in place against the moving part.