The standard size and accuracy are selected according to the use part, use conditions and environmental conditions. The suitable bearing for cooperation is the condition to ensure the life and feasibility of the slewing ring and the slewing bearing.
1. Part of use: Tapered roller bearings are suitable for receiving combined radial and axial loads based on radial loads. They are usually paired with two sets of bearings. They are mainly used on the front and rear hubs of cars, automatic bevel gears, and differentials. Transmission parts such as gearboxes and reducers.
2. Allowable speed: Under the environment of correct installation and good lubrication, it is allowed to be 0.3-0.5 times the limit speed of the bearing. general
Under normal circumstances, 0.2 times the limit speed is appropriate.
3. Allowable skew angle: Tapered roller bearings generally do not allow the shaft to skew relative to the housing hole. If there is skew, the maximum value should not exceed 2'.
4. Allowable temperature: Under normal load, the lubricant has high temperature resistance and sufficient lubrication, the general bearing is allowed to work at an ambient temperature of -30℃-150℃.
The running status of the machine that needs to be checked is the focus of people's attention on this bearing, and it has become more and more important to prepare a complete check plan. Since it is an important condition monitoring of all rotating mechanical components to prevent slewing bearings, slewing bearings from damage, and to prevent unplanned maintenance equipment from forming an important part of early detection of bearing damage during equipment shutdown.
But not all machines are equipped with this advanced equipment. In this case, the machine operator or maintenance engineer must insist on the bearing failure signal alarm.
The dent in the bearing outer ring track can cause oscillation. As for the equipment that is formed by knocking scars, noise will occur, and this noise bears different speed levels. If there is intermittent noise, then the rolling part may be damaged. This kind of sound appears. When the appearance is damaged, the launch date, if the bearing is hissing, the sound pollution often causes serious damage to the bearing and forms an irregular huge noise.
But usually it is not necessary to replace the bearing at this time. Therefore, if the slewing ring and the slewing bearing are damaged, of course, they can also be perceived by hearing. Such as the use of better methods, such as electronic health monitoring equipment, the operation of the bearing before the eruption.
