How often should grease-lubricated bearings be regreased?

Grease-lubricated bearings should typically be regreased every 3 to 6 months to ensure optimal performance and longevity. This frequency allows for the maintenance of adequate lubrication, which is crucial for reducing friction and wear between moving parts.

Over time, grease can become contaminated or lose its lubricating properties, which can lead to increased heat generation and ultimately result in bearing failure. Regreasing within the 3 to 6-month interval helps prevent such issues by replenishing the grease and expelling any contaminants that may have accumulated.

In contrast, regreasing monthly may lead to over-lubrication, which can cause the grease to break down more quickly, whereas intervals extending beyond 6 months might not provide sufficient lubrication, risking premature wear and potential equipment breakdown. Annual regreasing is generally considered too infrequent for most operational environments, especially if the bearings are in continuous or heavy-duty use.