

1. Automotive Industry In vehicles, oil seals are crucial for various components, including the engine, transmission, and differential. The 20x35x7 oil seal can effectively prevent engine oil from leaking out, which is essential for maintaining lubrication and preventing damage to engine parts.
2. Walking Foot A walking foot, or a feed dog system, can be invaluable when sewing fur and leather. This feature helps to feed the materials evenly through the machine, minimizing the risk of shifting. It works by moving the upper layer of the fabric in sync with the feed dogs beneath, which is particularly useful when working with slippery and bulky materials.