What are the applications of Clutch bearings

Time:2022-05-06 13:50:34

Usually the space in which one-way bearings can be installed is limited. In most cases, the shaft diameter (or one-way bearing inner diameter) is based on mechanical design or other design constraints. Therefore, the selection of the type and size of the one-way bearing is determined according to the inner diameter of the one-way bearing. Therefore, the important dimension tables of standard one-way bearings are compiled according to the international standard inner diameter size.

There are many sizes of standard one-way bearings, and it is best to use standard one-way bearings in the design of mechanical installation (that is, whether the one-way bearings are designed to be easily purchased or not, there is a digression, some models of one-way bearings are listed in the catalogue. Yes, there are DC one-way bearings, but some non-standard one-way bearings are not available in mainland China. They are classified according to their use characteristics: sometimes the futures will take a long time, so when selecting one-way bearings, you should consider the time, cost and later replacement. cost) the load of the one-way bearing, the load applied to the one-way bearing, the fume hood, the nature, size, and direction of which are variable, the test bench. Usually, the additional base load is shown on the dimension table. However, axial load and radial load, etc., DC one-way bearing is also the main factor in selecting a suitable one-way bearing. When the ball and needle roller one-way bearings are of the same size, needle roller one-way bearings usually have higher load capacity and suffer greater vibration and shock loads.

The allowable speed is determined according to the type, size, precision, type of cage, load, lubrication method, and cooling method of the one-way bearing. The one-way bearing table lists the allowable speeds of standard precision one-way bearings under oil and grease lubrication. Generally, deep groove ball one-way bearings, self-aligning ball one-way bearings and cylindrical roller one-way bearings are all suitable for high-speed operation. There are many varieties of one-way bearings, and the quality of DC one-way bearings is somewhat different. However, regardless of the quality of one-way bearings, they are classified according to the characteristics of use: the inspection of one-way bearings in use is inseparable from the inspection of individual one-way bearings. How many steps are required, including: 1. Look at the one-way bearing. Check whether the one-way bearing is rusted, whether the one-way bearing is broken, and whether the one-way bearing is peeling off.

one-way bearing-overrunning clutch-CSK one-way bearing-AS one-way bearing listen to whether there is noise in the one-way bearing, and whether the noise of the one-way bearing is normal 3. Use instrument diagnosis, such as electronic diagnostic instrument , stethoscope, etc.

The noise of the plain bearing raceway, the sound is because the plain bearing rotating raceway turns in the rolling corner, stimulating a smooth and continuous noise contact ball plain bearing species, only when the sound pressure level or tone, a huge attract attention . The bearing housing hole tolerance is recommended to be H7 and J7, and the linear shaft tolerance is recommended to be g6 and h6. The bearing installation must be pressed in with a stepped mandrel; Until the retainer is deformed and the steel ball falls off, the bearing installation direction should be as shown in Table 1, which can improve the bearing capacity and prolong the life. The bearing seat hole may compress the bearing, and the lead clearance will become smaller. At this time, the linear shaft is rotated by hand. If the shaft can contact the steel ball and can rotate easily, the matching clearance is 0~+0.01mm; if a little force can be used to rotate , the matching clearance is -0.01~0mm (interference); if the force cannot be rotated, the matching clearance is more than 0.01mm. In this case, the steel ball may slide at the same time when rolling, which will reduce the service life of the bearing and the shaft. , can only be used under light load, low speed and high centering requirements.

The inner and outer diameters of adjustment type and open type bearings are measured before the cut, and there will be some elastic deformation after the cut, and the matching clearance should be installed in the bearing seat for measurement (steel retainer bearing, KH bearing is similar). The adjustment direction of the bearing seat with adjustable clearance should be perpendicular to the direction of the bearing cut to ensure uniform clearance. The structural characteristics of the linear bearing cannot be rotated, and good guidance is required, so the linear bearing is generally two shafts + four sets Bearings or two shafts + two sets of extended bearings are used as a combination. The installation of the two shafts should be straight. After the whole combination is assembled, the transmission mechanism must be installed flexibly by hand pushing and pulling, and the transmission power must be sufficient to overcome the bearing friction. Resistance, the friction resistance of linear bearings is approximately one thousandth of the working load.