Date: 2013-08-20

Why needle roller bearings were mixed

　To determine standard is not strictly a production of needle roller bearings, the key ring needle roller bearing is a way of judging whether a hybrid? So how can I tell them? Next, we will look at specific measures for action.
　　First, we can use the left hand needle roller bearings to seize, then began to turn to it from the outside, in the turning process on whether or not you can listen to other voices? If the user has heard other noises, so clearly, so the needle is a counterfeit product. Can also see, the entire production is a problem, if you came from the workshops of the factory, often experience this problem easily. Because in the course of the production of needle roller bearings, adding a lot of dust or other impurity substances too much, you will experience this problem. Under such circumstances, in later use, there will be not smooth, even has a lot of noise.

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