Heavy Truck Wheel Bearing
The main components of heavy truck hub bearings are composed of heavy truck large inner ring, large outer ring, rolling elements (rollers), cages, locks, heavy truck frames (spherical shells), bolts, etc.
Product introduction:
The main components of heavy truck hub bearings are composed of heavy truck large inner ring, large outer ring, rolling elements (rollers), cages, locks, heavy truck frames (spherical shells), bolts, etc., and according to the assembly requirements of automobile hub bearings And features, the internal need to assemble double-row tapered roller bearings, so as to bear better axial load and radial load. The working features are mainly as follows: the heavy-duty truck hub bearing is assembled on the axle shaft of the heavy-duty truck, and the inner ring of the double-row tapered roller bearing is fixed on the main shaft. The rings and rollers rotate according to the speed of rotation, and the tires of the heavy truck are mounted on the bolts to drive the car to walk. The main structure and assembly form of heavy truck hub bearings.
一．Causes of bearing jamming:
1. Poor lubrication
2.Unqualified bearing quality。
3.Machining accuracy is not enough
4.Incorrect bearing selection
5.Improper bearing fit
6.Bearing wear and clearance reduction
7.Unreasonable structural design
二．Bearing stuck solution:
1. Add lubricating oil in time, keep the oil pipe unobstructed, and use lubricating oil within the warranty period;
2. Select the bearing that matches the equipment model, installation size, etc.;
3. Regularly check the wear of the bearings, and replace the bearings if necessary;
4. You can check the spline part of the universal drive shaft, and there is no gap of 20-30mm, which is not conducive to the flexibility of the spline part and affects the universal alignment;
5. The joints of the universal transmission part are rusted and dead, and they will not be pulled and pushed. The universal joint does not have the effect of adjusting the center. When the shaft rotates, it will not be strong or concentric, which will cause the outer bearing to be stuck;
6. Replace with a new flower drive shaft that can be pulled and pushed flexibly;
7. The key parts are too long, 50-70mm. Because the total length of the spline is only 90mm, 50-70mm is drawn out, and the spline meshing part is only 20-30mm, and axial runout will occur during operation. Axial tension on the bearings causes serious wear and tear, resulting in the life of the bearings being stuck.
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