What is the maximum operating temperature that bearings can withstand?

The maximum operating temperature that bearings can withstand is typically around 120°C (248°F). This temperature threshold is crucial because exceeding it can lead to several detrimental effects on bearing performance and longevity.

At elevated temperatures, the lubricants used in bearings can break down more rapidly, leading to increased friction and wear. Additionally, higher temperatures can cause thermal expansion of the bearing materials, which may change the tolerances and clearances between parts, resulting in decreased efficiency and possible failure.

While bearings may occasionally operate at higher temperatures under certain conditions, sustained operation beyond 120°C is generally not advisable for standard bearing materials, as this can significantly reduce their lifespan and reliability. Some specialized bearings may be designed to withstand higher temperatures, but for standard applications, 120°C is a widely accepted upper limit.