How to identify the quality of the bearing are as follows:
1. Look. Observe the machined surface of the bearing. The surface of the inferior bearing is rough and the chamfering is uneven.
The surface of high-quality bearings is delicate and smooth, with even chamfers.
2. Turn. Hold the inner ring of the bearing with one hand, and rotate the outer ring of the bearing with the other hand.
When the bearing is inferior, you can feel the presence of foreign objects in the bearing channel.
The selection is not smooth. The high-quality bearings rotate smoothly and smoothly without blocking.
3. Listen. When the bearing is in operation, the inferior bearing has a “click” friction sound, while the high-quality bearing does not exist.
Post time: Aug-08-2022