People who know how to make something with their own hands love to make certain devices on their own. For example, to assemble a machine, in particular a tractor, they use various spare parts from different types of used equipment. At the same time, it is very difficult to assemble some of the components. For example, in order to correctly select such important elements as bearings , you need to pay attention to the purpose of the nodes, as well as to the fact what is the load on them.
What can be the direction of the load
Without a doubt, this parameter is the most important. When engaged in the selection of elements for a particular technique, it should be taken into account first of all. Ball bearings can be used under the following conditions:
- small shaft diameter;
- minimum load.
If the loads are significant, roller parts should be used.
What can be the load
When the load is distributed in different directions, double type ball bearings of the appropriate size must be used. If the unit works with radial loads, it is necessary to use models with cylindrical rollers, where there are no sides. In addition, roller type needle bearings can also be used. When the mechanism is subjected to axial loads, then thrust bearings must be selected. A single ball bearing can also handle the load in one direction.
If the loads are multidirectional, then roller assemblies with tapered rollers may be the best choice. You can also use elements of the radial-contact design. Indicators such as the angle of surface contact and axial load must be consistent with each other. It should be noted that if the contact angle increases, then the axial load capacity increases. When the main load is in the axial direction, use thrust-type ball bearings with four-point contact. In addition, spherical roller bearings can be used.
