Pay attention!!

1) Do not hit the bearing surface directly with a hammer during installation

2) Do not use insulating bearings with defective surfaces

3) Clean the bearing chamber and bearings, and do not adhere to conductors

4) Select a suitable shoulder to avoid current flowing through the bearing from the side of the bearing

5) The angle of 0.5MM depth and slope of 10-15° need to be reduced on the bearing chamber