The turntable bearing originated from the needs of low -speed overloads and the large -sized and large angles of action of rotating. Loads, large bearing of special structures such as setting support, rotation, transmission, and fixing. The turntable bearing device can withstand a lot of loads. Whether in the case of work or not working, it will bear working loads, self -heavy loads, slope loads, collision loads, temperature loads, and so on.
Frequently load forms of turntable bearing:
1. In the traditional sense, axial load, radial load and overturned torque. In the rolling bearings, at the contact point of the rolling lane with the maximum load load, the total plastic deformation is less than one tenth of the rolling diameter, and it has no great impact on the normal operation of the bearings. The bearing bearing bearing capacity determined by this plastic deformation condition is called the rated static load, and it is generally represented by C0. The rated static load is determined under the hypothetical load conditions. For the directional bearing, the rated static load refers to the radial load. The radial component, the thrust bearing refers to the central axial load. The basic rated static load and basic rated static load of the bearing refers to the maximum load that can withstand the bearing when the bearing is static or rotating.
2. Working load: refers to the weight of the transit support device in the work and the sum of the weight of the weight, and the weight of the total amount is slowly transferred to the rotary support device.
3. Temperature load: In the work, machinery and equipment will generate a certain temperature, and all these temperatures must be absorbed by the transfer support device, so that the rotary branch will bear all the temperature.
4. Wind load: Mechanical work In the open air, it is necessary to consider the role of wind load, including wind direction, rain, thunderstorms, and so on. The above is only a part of the load of the recking support device. In fact, the rotating support device must also bear more loads in order to meet the weight and load of the machinery in the work. Under normal circumstances, the turntable bearing itself has installation holes, lubricating oil and sealing devices, which can meet the different needs of various hosts working under different working conditions.
5. Risk load: the accidents, unpredictable loads, cross -stresses, risk stress, accidental violence, etc. Therefore, the choice of turntable bearing will have the presence of the safety factor to ensure that everything is lost.
6. Dynamic load: including inertial load, vibration and impact load. When the quality of the movement speed and direction changes, the quality force is called inertial force.
7. Static load: The load capacity of the bearing is static, which is determined by the allowable plastic deformation. The plastic deformation in rolling bearing is inevitable. If the limited allowable plastic deformation is small, the static load capacity of the bearing is also small; if the permanent plastic deformation is large, the pit generated on the roller will increase the noise and vibration and operating accuracy of the bearing in the operation of the roller. Reduce the normal work of the bearings.