

Oil seals can be made from various materials, including rubber, silicone, and polyurethane. The choice of material often depends on the operating conditions such as temperature, pressure, and the type of lubricant being used. For the 50x65x8 oil seal, nitrile rubber (NBR) is commonly utilized due to its excellent oil resistance and durability in a range of temperatures.
Moreover, a walking foot is beneficial when working with fabrics that have a tendency to stretch or shift, such as knits or certain types of lightweight materials. This foot can help maintain the integrity of the stitch and keep the fabric from distorting as it passes through the machine.