Analysis of IKO bearing inspection matters needing attention in operation

Imported bearing when choosing to pay attention to many things, the most important is to follow the IKO bearing their own characteristics to choose. Here are simple explain for everybody, in the process of selection should pay attention to matters. 1, the precision of the imported bearing: in most case, applying general size and rotating precision of the rolling bearing is enough. Bearing need higher precision when demand a higher level. 2, no neutral compensation: no neutral in machining shaft neck surface or bearing with surface, especially with surface processing is not done in the middle of a pack card. Also can produce in the wrong when using bearing seat. Due to work load in the shaft bending deformation, resulting in IKO bearing inner and outer circle, also can appear in the wrong. 3, rotational speed, single row bearing friction especially low, therefore can achieve the highest speed. 4, low operation noise: in a small motor, office equipment and household appliances and other general requirements are lower running noise. 5, conical hole: with a conical bore bearing can be installed directly to the cone shaft neck ( For example: high precision structure of single row and double row cylindrical roller bearings) 。 When installing this kind of bearings can adjust out of a given radial clearance. Most with a conical bore self-aligning ball bearings, cylindrical roller bearings and spherical roller bearings are available through a set of installation set to the cylindrical shaft neck. This type of bearing special is easy to install and remove. 6, stiffness, IKO bearing stiffness is usually directed bearing the force needed to produce certain elastic deformation. Machine tool spindle and pinion shaft bearings are required to have high stiffness. As a result of the rolling element and raceway contact condition is different, the rigidity of the roller bearing is higher than the stiffness of ball bearing. 7, bearing radial load, mainly bear radial load bearing for centripetal bearing. This type of bearing the nominal contact Angle of a0 & lt; 45 = 0. Size of the same roller bearing is larger than the ball bearing can bear radial load. N and NU type cylindrical roller bearing can bear radial load, other types of centripetal bearing can bear radial load, can also carry axial load. 8, the axial load bearing, mainly bear axial load of bearing, generally for the thrust bearing, its nominal contact corner a0 & gt; 450. Thrust bearing and thrust angular contact ball bearing according to the different structures can take one or two directions at the same time of axial force. When bear particularly high force optimization with thrust cylindrical roller bearings, thrust spherical roller bearings. 9, the length of the imported bearing its own compensation: a shaft bearing and bearing usually adopt fixed bearing and floating bearing structure. The length of the winding shaft bearing compensation error and thermal expansion. 10, separable bearing ( Accuracy) : this is a kind of ring can be installed in a separate IKO bearings, when both ring with tight fit its advantage is very outstanding. Separable bearings include four-point contact ball bearing, two and a half circle of double row angular contact ball bearings, cylindrical roller bearings, tapered roller bearings, thrust ball bearings, thrust cylindrical roller bearings, thrust spherical roller bearings. Then bearing vibration test to check the bearing damage is very sensitive, peeling, indentation, rust, crack and wear will be reflected in the bearing vibration measurement, therefore, through the use of special bearing vibration tester ( Frequency analyzer, etc. ) Can measure the size of the vibration, through frequency points cannot deduce the abnormal situation. However each machine measured values for bearing or sensor installation position and different using conditions, thus requiring prior to each machine is analyzed by the measured value of the determined after judgment standard. Finally said IKO bearing temperature generally have a bearing on the surface of the outdoor temperature can be deduced, for this is simple, if using the oil hole can directly measure temperature of bearing outer ring, is more appropriate. Usually, the temperature of the bearing with operation began to slowly rise, 1 - After 2 hours to reach steady state. The normal temperature of bearing for machine heat capacity, heat dissipating capacity, rotational speed and load. If the appropriate lubrication, installation department, the bearing temperature will rise sharply, appear unusually high temperature, must stop at this moment, take the necessary precautions. Based on a lot of test data, because the temperature by lubrication, rotational speed, load, the influence of the environment, so you should use thermal device can monitor the working temperature of bearing, and implement e. automatic alarm when the temperature is more than the household or stop to prevent the shaft accidents.