How to correctly choose servo motor bearing seat - bearing knowledge

Parallel cutting seam type bearing seat by a single piece of metal, usually commonly used aluminum, using spiral seam broken pieces to comply with the bias and transmission torque. They usually have a very good function and have the price advantage, in a lot of practice, it is the product of choice. The design of the single piece of the original data to make it complete without back the merits of vacant land transfer torque and no maintenance. There are two basic series: single joint type and joint type. Single slit type has a gradually more laps long cut seam, the bearing has good elasticity and small bearing load. It can accept all kinds of bias, the most suitable for treatment of Angle displacement and axial displacement, but parallel to accept force is weak, due to the single slit together in two different directions and bending will happen a lot of external pressure, so as to cause damage to parts early. Although long single slit bearing can accept easily bend to situations, but under torsion load and the rigidity of the bearing has the same influence. Under torsion load is too large rotary gap will influence the accuracy of the bearing and extinction of all its functions. Single slit bearing is a kind of economic choice, the most suitable for low torque in use, especially in the cohesion encoder and other lighter in the instrument. Many cutting seam bearing usually has two or three cutting seam, in order to make rigid Issue (low torque The problem) 。 Cutting seam type allow for more about not weaken accept favour to make the cutting seam under the condition of short, short cut the seam to reinforce the torque of the bearing stiffness and overlapping in together, make its can accept very large torque. This function makes it suitable for the use of light load, for example, servo motor and ball screw. With this functionality is not without any negative effect: as the growth of the kerf width size beyond the single slit type, the bearing load increases, but the big minority situation, also can have enough land for maintenance of bearing. The concept of a few manufacturers cut more seam type extension to another level. In addition to a multiple slitting, two sets of slitting and are used together. Multiple sets of slitting make the bearing more elastic and abilities to accept. Growth size means growth parallel to accept to, compared with single cutting seam and single set of bearing seat, kerf width in parallel to the situation, multiple sets of cutting seam bearing can bend in different directions, and thus more able to adapt to accept the deviation. Today a few of the series of bearing seat is made of aluminum, but there are a few vendors provide the design with stainless steel consumption. With stainless steel housing, in addition to corrosion resistance, also can accept and stiffness increased torque, sometimes can reach twice the aluminum similar product. But the growth of torque and stiffness were offset by the growth and quality of inertia. A lot of negative effects in will surpass its strengths, so the use of households had to find other ways of bearing seat. In a small motor used in the high incidence of motor torque is used to control the inertia of the bearing, it will severely reduce the all the functions of odds and ends.