excessive lubrication cause of bearing failure

17 Aug 2017 10:03

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The main purpose behind bearing disappointment is intemperate grease. The grease gun can be a more prominent adversary than one may might suspect. Lubing orientation is important to keep up bearing life. Oil limits grinding between contact surfaces, secures against erosion and the passage of remote issue, and disseminates warm from the bearing. Be that as it may, support work force frequently apply excessively grease. The abuse of the grease gun can cause untimely disappointment of the bearing and offset any advantages the grease had in ensuring the bearing.


A grease gun has a normal rating of 6,000 pounds for every square inch (PSI). This can go up to as high as 15,000 PSI. Bearing seals bomb around 500 PSI. Many administration professionals regularly "pass by feel," yet with an outrageous distinction between the grease gun weight and the bearing's seal disappointment, the harm may happen before they "feel" anything.

Once the seals are cleansed, the bearing is inclined to sullying. Dampness and different flotsam and jetsam can enter the bearing, eroding the bearing surfaces. Any grease that was cleansed from the bearing will be moved once again into the bearing after it cools, carrying outside contaminants with it.


Over lubing likewise causes warm development in the bearing. This happens in light of the fact that there is no place for the warmth to disperse. A "full" bearing will hold a higher temperature than a legitimately filled one. Likewise, if a heading is hot to the touch, it is not really overheating and needing more grease. The warmth—alongside the interior stirring of the bearing—will constrain the grease to the outside of the bearing. The grease will then separate and solidify, hindering any future grease from getting to the contact surfaces, conflicting with the fundamental capacity of limiting grating between contact surfaces.


One answer for this issue is to decide how much grease is removed with each pump of the grease gun. An administration professional can quantify the quantity of ounces of grease that are ousted per pump with a scale. Each grease gun shifts.

A moment arrangement is to take a gander at programmed lubricators, which are made to the bearing producer's details. Programmed lubricators convey a deliberate measure of grease to the bearing at a planned interim. Upkeep work force just need to decide the interim at which the lubricator exhausts itself. They at that point change the lubricator once it purges.


Following an appropriate lubing calendar can spare the organization cash as well as free up time that could be better spent by the upkeep staff. Bearing makers distribute oil diagrams for their items, and most will prepare staff on the correct oil hones.

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