From the current market situation, polyurethane coated bearings are widely used in real life. However, in order to meet the needs of certain bearings, there are various ways to use them during the actual use of polyurethane coated bearings. What should be paid attention to in polyurethane coated bearings? Everyone must have a better understanding of this.
1. Polyurethane coated bearings must pay attention to strength in practical use, because the coating mold needs to pay attention to the strength of the skeleton to prevent deformation after coating.
2. When using polyurethane encapsulated bearings, attention should also be paid to their shrinkage, and the encapsulation mold should pay attention to the shrinkage rate. From the appearance, the outer parts basically do not shrink at all. Then it is a design issue because many places need to be placed outside, so in principle, it will not affect the sealing. This can be considered very good. However, from the current situation, the softening temperature of the bottom part and the encapsulation material should differ by at least 20 degrees Celsius.
3. When choosing polyurethane coated bearings, attention should also be paid to the relevant mold positioning to achieve truly reliable sealing. Prevent deformation during use, and leave extra space for pre pressing at the sealing position, especially on the back with soft rubber.
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