1. The bearing mark should generally be marked with the bearing code and the manufacturer's code (or trademark), and if necessary, other signs that are jointly recognized by the manufacturer and the subscriber.

2. The non-separable bearing shall mark the basic content to be indicated on the end face of a ferrule. To distinguish the reference end face, the process symbol mark is allowed to be marked on the non-reference end face of the ferrule.

3, separate bearings, should be marked on the detachable ferrule and the ferrule with rolling elements are marked with the basic content.

4. In the code of the closed bearing, the seal ring code or the dust cover code can be simplified. For example, -2Z can be abbreviated as -Z; -2RS can be abbreviated as -RS.

5. The bearing mark is generally marked on the non-standard end face of the ferrule, but it can also be marked on the ferrule reference end face, the outer ring outer cylindrical surface, the shroud, the cage, the retaining ring, the seal ring and the dust cover according to the product pattern requirements. .

6. When the effective width of the end face of the marking part is less than 1.0mm, the marking is allowed on the outer cylindrical surface of the bearing. If there is any difficulty in marking the outer cylindrical surface of the bearing, it can be marked on the packaging.

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