oil seal for motor
In addition to protecting against external contaminants, dust wiper seals also help retain lubrication within the system. By preventing dust and dirt from entering the system, these seals help reduce friction between moving parts, which can prolong the life of the equipment and reduce maintenance costs. Proper lubrication is essential for the smooth operation of hydraulic cylinders, pneumatic systems, and other machinery, and dust wiper seals play a vital role in ensuring that lubricants stay where they are needed most.
dust wiper seal



Firstly, exceeding the maximum allowable diameter of a brake drum can detrimentally affect the vehicle's braking performance. When the diameter is too large, the brake shoes may not make proper contact with the drum surface. This reduced contact area limits the friction generated during braking, which can lead to increased stopping distances—an alarming safety hazard in emergency situations. Moreover, improper brake drum size can result in uneven wear of brake components, leading to further complications and costs for maintenance.
maximum allowable brake drum diameter
