

The primary function of the 20x35x7 oil seal is to prevent the escape of lubricants from one chamber to another, ensuring that machinery operates smoothly and efficiently
. By sealing the gaps between moving parts, the oil seal helps in minimizing friction and wear, contributing to the longevity of equipment. Moreover, preventing oil leakage is crucial for maintaining proper lubrication levels, thereby supporting optimal operational conditions and reducing potential breakdowns.2. Labor Labor costs can vary widely depending on the geographical location and the complexity of the roof design. On average, labor can add another $50 to $100 per square, taking into account the experience of the roofing contractor and regional market rates.