The size of the seal also plays a crucial role. The size of the sealing space is 90 diameter, and the suitable size of the outer diameter of the oil seal is 90-90.35 diameter.
However, the outer diameter of the oil seal we just started to use is often larger than 90.35 or smaller than 90. When it is too large, due to the overall strong contraction in the process of the device,
Whn it is too small, it is used to form the relative movement between the oil seal outer ring and the seal hole during the operation.
Thus, the outer ring is gradually worn to form a gap between the outer ring of the oil seal and the hole, and the slurry is extruded from the gap to cause the seal to be invalid.