An oil seal, also known as crankshaft retainer, is a small device, but essential to ensure the proper engine operation. It plays a key role in all moving parts of an engine, acting as a physical barrier. This mechanical seal fulfils the dual purpose of sealing a rotary shaft to maintain the necessary lubrication (avoiding leaks) and preventing other foreign matter from contaminating shafts and bearings in the rotary shaft equipment.
Both sealing types are popularly used in different mechanical engineering applications. How are they different? The article explains the fundamental working mechanism of both categories of seals.
In the manufacturing sector, oil seal rubber parts are employed in pumps, compressors, and various machinery where lubrication is critical. Their ability to maintain a seal under high pressure and rotational speeds makes them indispensable in these settings. Regular maintenance and inspection of wheel hub oil seals are essential