

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. Design Specifications The unique design aspects, such as the sealing lip geometry and the hardness of the rubber, are optimized to balance flexibility and resilience. This design ensures proper contact with the shaft, reducing the risk of oil leakage and improving the overall efficiency of the machinery.
In contrast, drum brakes utilize a cylindrical drum that rotates with the wheel. When activated, brake shoes inside the drum expand against its inner surface, creating friction to slow the vehicle down. Drum brakes are generally more compact and cost-effective to manufacture, which is why they’re often found in the rear brakes of economy vehicles. However, they tend to perform less effectively in adverse weather conditions and can suffer from brake fade during prolonged use due to overheating.