rod wiper seal

Wheel bearing grease seals, often referred to simply as grease seals, are fitted between the stationary and rotating parts of a wheel bearing assembly. They create a barrier that prevents grease from leaking out while simultaneously keeping dirt, dust, moisture, and other contaminants at bay. Typically made from durable materials such as rubber or synthetic compounds, these seals are engineered to withstand high temperatures and pressures, which can occur during operation.

The primary function of axle hub seals is to retain lubrication. Proper lubrication is essential for the smooth operation of moving parts, reducing friction and wear. Without effective sealing, the lubricant can leak out, leading to inadequate lubrication of the gears and bearings, which may cause premature wear and eventual failure of the components.

Hub oil seals can wear out over time due to various factors, including age, temperature variations, and mechanical stress. Signs of a failing oil seal may include oil leaks, unusual noises from the wheel hub, or the presence of contaminants inside the hub assembly. Regular inspections are essential, especially during routine maintenance checks, to identify any potential issues before they escalate.