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In addition to preventing fluid loss, oil seals also protect machinery from external contaminants such as dust, dirt, and moisture. These particles can cause significant damage if they enter the inner workings of equipment. The presence of a well-functioning oil seal eliminates this risk, fostering a clean operational environment.
20x35x7 oil seal

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When the rear hub oil seal begins to fail, it can have a number of negative effects on the vehicle

rear hub oil seal. Oil may begin to leak out of the hub, leading to low oil levels and potential damage to the hub components. The hub may also become contaminated with dirt and debris, causing increased wear and potential failure of the bearings and other parts.

rear hub oil seal. Oil may begin to leak out of the hub, leading to low oil levels and potential damage to the hub components. The hub may also become contaminated with dirt and debris, causing increased wear and potential failure of the bearings and other parts.
The two raceways in a 51100 bearing are usually separated by a cage or retainer, which helps to maintain the spacing and alignment of the balls. This design allows the bearing to handle high axial loads without experiencing excessive wear or premature failure

51100 bearing.

51100 bearing.