The main factors used to adjust is installed, use and maintenance, repair and other maintenance are in line with technical requirements. According to NTN thrust bearing installation, use, maintenance, maintenance of the technical requirements for operation of the bearings to withstand load, speed, temperature, vibration, noise and lubrication condition monitoring and inspection, abnormal immediately find reasons to tune in Guangxi NSK Bearings whole, to return to normal. Installation conditions are the primary factors used one of the factors bearing is often caused by improper installation package bearing between the various components of the stress state changes, bearing in abnormal operating conditions and early termination of life.
Internal factors mainly refers to structural design, quality manufacturing processes and materials, three factors determine the quality of the bearing.
NTN thrust bearing materials, **llurgical quality of early bearing failure was the main influence factors. As **llurgical techniques (such as bearing steel vacuum degassing, etc.) and progress, to improve the quality of raw materials. Raw material quality factors in bearing failure analysis in the proportion has decreased significantly, but it is still bearing failure of one of the main factors. The appropriateness of the selection of Sichuan NSK Bearings is still bearing failure analysis must be considered.
Manufacture of bearings generally through forging, heat treatment, turning, grinding and assembly of multi-channel processing operations. The reasonableness of the processing technology, advanced, will also affect the stability of the bearing life. NTN thrust bearing which affect the quality of the finished product heat treatment and grinding processes, often associated with the failure of the bearing has a more direct relationship. In recent years, deterioration of the bearing surface layer of the study, the bearing surface of the grinding process and the quality of the close.
NTN thrust bearing life analysis of the main task is based on a lot of background material, analysis of data and failure modes, failure to identify the main factors causing the bearing to make targeted improvements to extend bearing service period, to avoid the occurrence of bearing unexpected early failure.
First, the removal
1. First with a hex wrench to loosen the eccentric sleeve bearing NSK bearing locking screw in Xinjiang, and then cover with a small iron bar into the sink hole eccentric sleeve, going against the axis of rotation eccentric to play loose.
2. Loosen the bolts fixed bearing. Together with the bearing removed from the shaft with the bearing. Note that the demolition of one end of the bearing shaft before. Axis should be the other side of the bearing seat bolts loose, so as not to do with each other at both ends of the bearing strength and damage.
Second, the installation
1. NTN thrust bearing to the shaft before installation, you must first unplug the jacket bearing a fixed pin, while the journal surface clean and smooth, polished and oiled in the journal at the rust and lubrication (bearings in the shaft to allow a slight rotation).
2. With the bearing and the bearing lubricant topcoat, NTN thrust bearing into the bearing seat. Then assembled with the bearing sleeve with NSK bearing on the shaft. Pushed to the desired location for installation.
3. Fixed bearing, do not tighten the bolts to let the bearing jacket can rotate within the bearing. Also installed the other end with a shaft bearing and seat, the axis of rotation a few times, so that the bearing itself automatically find the location is. Then the bearing bolt good.
4. Loaded eccentric. Condom in the first eccentric thrust bearing NTN sets of eccentric steps, and along the axis of rotation by hand tightening. Then insert a small iron bar, or put the sink hole to withstand eccentric. Hand-hammer percussion along the axis of rotation direction of the small iron bar. The eccentric sleeve is securely installed, and finally put the eccentric locking socket head cap screw.
