When shopping for lip seals, you may come across single and double lip seals. All lip seals are ring-shaped seals that protect against leaks. They are commonly used around rotating shafts where they fill the open space and prevent fluids … Read More

Spring plungers are available in different lengths. Some of them are long, whereas others are short. Regardless of length, all spring plungers feature a spring-loaded ball or nose. The spring is enclosed within the plunger’s body. It will apply constant … Read More

Threaded stem casters are a popular choice for chairs, toolboxes, carts, material handling equipment and other wheeled objects. Casters are often categorized according to the way in which they are mounted. Threaded stem casters are mounted via a bolt-like stem … Read More

Not all fasteners consist of a single, solid material. Many of them are plated for better performance. Plated fasteners feature an inner core that’s covered in a separate material. One of the most common plating materials is zinc. Zinc-plated fasteners … Read More

Mechanical seals are often categorized according to the material from which they are made. Silicone seals are made of silicone, whereas polytetrafluoroethylene (PTFE) seals are made of PTFE. While some seals are made entirely of PTFE, however, others are made … Read More

Mechanical springs are used in a variety of applications. Consisting of coiled metal, they are designed to store energy when exposed to a load. Some springs will become shorter when exposed to a load, whereas others will become longer. Regardless, … Read More

Not all pull handles are made of metal. While aluminum and steel are common materials in which they are made, pull handles are available in thermoplastic as well, such as Duroplast. Originally developed by Wolfgang Barthel in the 1950s, Duroplastic is … Read More