How should prevent spherical bearings eroded?
With a thin layer of grease in the cavity and the head cover, which plays the role of anti rust. Note that the grease in the cavity should not be smeared too much, otherwise it will affect heat dissipation and brake. Put the outer bearing on the axle neck, adjust the nut by hand, then tighten the adjusting nut with the axle wrench according to the required torque. After tightening the nut, turn a few turns to see the installation of the bearings; on the other hand, make the bearings match the race properly by turning. At this time, the bearings are tight and the wheels are free to rotate without feeling the axial clearance. Finally, the locking plate, the fixing nut, the tyre, the dust cover and the decorative cover are arranged in turn. Spherical bearings after adjustment, driving a mileage (about 10km), check for parking, wipe touch temperature, if fever, is caused by tight bearing adjustment, should be re adjusted, appropriate to relax the tension bearing.
Clean the inner cavity with a cloth at last. Check the bearing and bearing rings, found cracks, fatigue spalling and loose roller bearings, etc., should replace bearings. If it is found that pitted the bearing rings, bearing should be replaced. Check with spherical bearings and shaft diameter, the clearance should be less than 0.10mm to measure the shaft neck, should be the two parts in the vertical ground (the largest wear parts measurement). If the clearance exceeds the specified limit of use, the bearings shall be replaced so that the normal fit clearance is resumed. Do not allow the burr, in shaft neck pits to narrow the gap. After all parts meet the requirements, the inner bearings will be coated with grease and placed in the rear. Should pay attention to the spherical bearing cavity grease, grease into the bearing should be until the grease coming from the other side of the bearing so far.
It has a lot to do with the dust cover. If the seal is good, the chances of erosion are small.
