Non-Standard Bearings Non-standard size
Flat bearings are roller bearings and cylindrical roller composed of flat bracket, which is divided into needle roller bearings and spherical plain bearings. Its role is to maintain the needle roller and cylindrical roller flat type. When used in conjunction with different flat washers, there are different combinations of bearings. The advantage is to increase the length of the contact between the device and the device, so that the bearing in a smaller space can get high carrier load capacity and high stiffness. But also reduce the edge of the application force, to extend its service life.
Non-standard bearings are non-standard size or do not meet the requirements of the size of the bearing, that is, the appearance and design dimensions do not meet the standards of the relevant requirements of the bearing. It is suitable for some special requirements of the equipment, because the size is different from the standard bearing size requirements, it must find some bearing manufacturers custom, the production of the number of batches, and the design has some limitations, so non-standard bearing prices are generally expensive. Some of its parts, such as the size of the ball, must be customized according to the specific size.
(Bearing assembly) tips and precautions (bearing heater)
Whether the bearings are installed correctly affect the accuracy, longevity and performance of the bearings. ⒈ use copper rods and manual installation
This is a simple way to install small and medium bearings. When the bearing inner ring for the tight fit, the outer ring for the more loose with the copper rod close to the bearing inner ring end, with a hammer directly hit the copper rod, through the copper rod force, the bearing slowly installed on the shaft. Bearing inner ring larger, you can use copper rods along the bearing inner ring around the uniform force percussion, avoid just beat the side, can not be too much force, to symmetry tapping, gently tapping slowly installed, so as not to install slanting bearing The
⒉ use of the sleeve to install this method and the use of copper rods to install the same reason. It is the sleeve directly on the bearing end of the bearing (bearing mounted on the shaft when the inner surface of the inner ring; installed in the shell hole when the outer ring end), with a hand hammering force can be evenly distributed in the installation Of the bearings on the whole ring face, and can be used in conjunction with the press, installation effort and save time, reliable quality. The sleeve used for the installation should be made of soft metal (copper or low carbon steel pipe can be). If the bearing is mounted on the shaft, the sleeve diameter should be slightly larger than the journal 1-4mm, the outer diameter is slightly smaller than the bearing inner ring diameter, or the thickness of the sleeve, the thickness should be made equal to the bearing inner ring thickness 2 / 3-4 / 5, and both ends of the sleeve should be flat and perpendicular to the barrel. If the bearing is installed in the seat hole, the sleeve diameter should be slightly smaller than the bearing diameter.