We use deep groove ball bearings in the process, occasionally forced open the lid sealed bearings, this time we will find that there are some side bearing full of grease. While the other side is not fat, and some bearing grease is evenly distributed on both sides, especially the high price of bearings, this is what causes it?

We know the need is bearing grease and rust, especially sealed deep groove ball bearings, bearing grease can not operate at high speed during operation, life is much shorter. And bearing in the production process is a process of coming to a bearing inner and outer rings and ball, after the cage is assembled, the first is to wash, then rinse the pressure side of the seal cover, then flipped over bearing, greased (general It is added 30% to 35% of the internal volume of the bearing), and then a lid.

Here we find, sealed deep groove ball bearings plus one side is no oil, grease is applied to only one side of it in the production process; if both sides, then add oil, bearing production process on more than one step, so it will reduce the production efficiency.

This time people may ask, why would some bearing grease on both sides of it? If the bearing grease seals on both sides, this is a relatively high price, and the other is over the bearings. Why do you say? This is the high price of bearings are generally better quality, this is the result of deep groove ball bearing side full inspection, that is, to go through the bearing rotation test, after which the rotation bearing grease on the inside of the distribution; the other is the bearing I had used, used, and oil will certainly be distributed evenly.

So the new deep groove ball bearings on both sides of only one side and the other side did not have grease is normal, users do not worry, just take a few turns bearings, mechanical or above to get a few minutes of rotation, bearing grease on the inside of the uniform rotation , it does not affect the use.