Effects of excessively high lubricant viscosity
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Experts, what effects does too high viscosity of lubricating oil in sliding bearings have on them?
The oil is viscous, making it difficult to form an oil film; this can lead to metal friction, which may damage the bearing shells and even the shaft surface.
One can imagine it exaggerately: what would happen if, at sub-zero temperatures, the lubricant froze? It is necessary to heat it to around 15 degrees, and the lubricating oil must meet the requirements for the unit’s operation before it can be started