KOYO bearing structure types of maintenance requirements - bearing knowledge

1, bearing the thrust angular contact ball bearing thrust angular contact ball bearing contact Angle 60 ° commonly used thrust angular contact ball bearings are generally two-way thrust angular contact ball bearings, mainly used for precision machine tool spindle, commonly used together with the double row cylindrical roller bearing, it can be subject to bi-directional load and have high precision, good rigidity, low temperature, high speed, convenient installation. 2, bearing deep groove ball bearings on the structure of each ring of deep groove ball bearing have cross section is about the equator of the ball perimeter of a third consecutive raceway groove type. Deep groove ball bearing is mainly used to bear radial load, also can absorb a certain amount of axial load. When KOYO bearing radial clearance increases, has the properties of Angle contact ball bearing, can carry alternating axial load in two direction. Compared with other kinds of bearings of the same size, such bearing small friction coefficient, extreme high speed, high precision, is a user selection of the preferred type of bearing. Deep groove ball bearing has simple structure, easy to use, is the production batch is the largest, the most widely application scope of a class of bearings. 3, bearing the thrust tapered roller bearings as the roller in the thrust tapered roller bearings for tapered roller, the rolling bus bar in the structure and the washer raceway of busbar are concurrent in the bearing axis line at some point, therefore the rolling surface can form pure roll, limit rotational speed is higher than the thrust cylindrical roller bearings. Features: thrust tapered roller bearings can withstand one-way axial load. Thrust tapered roller bearing type code 90000 type. 4, bearing the double row circular cone roller bearings in the structure and characteristics of double row tapered roller bearing structure is various, the maximum is 35000, has a double raceway outer ring and two inner ring, a baffle between the two inner ring, changing the thickness of the baffle can adjust the clearance. This type of bearings in bear radial load at the same time it can be subject to bi-directional load, can be within the scope of the bearing axial clearance limit shaft and the shell axial displacement. The structure characteristics of tapered roller bearing. Tapered roller bearing type code 30000, tapered roller bearing for separating type bearing. Tapered roller bearing is mainly used to bear the joint mainly consisting of radial load and axial load. Compared with the angular contact ball bearing, large carrying capacity, limit rotational speed is low. Tapered roller bearings can withstand axial load in one direction, can limit axial displacement of shaft or housing in one direction. For the KOYO bearings and keep its long-term performance into full play, must earnestly to do regular maintenance ( Regular inspection) 。 Through proper periodic inspection, do early detection of fault, prevent accident arrangement is very important to increase productivity and efficiency. 1, clean the bearing will be removed, with photography method such as first and then record the appearance. In addition, to confirm the amount of residual lubricant and lubricant sampling, and then clean the bearing. A, bearing cleaning divided into rough washing and fine washing, can be put in use at the bottom of the container and on the metal frame. B, rough washing, oil using a brush to remove grease or adhesive. If at this time in oil bearing, pay attention to the rolling surface due to foreign bodies such as damage. C, fine cleaning, slowly rotating bearings in the oil, must be carefully. Commonly used cleaning agent for neutral aqueous diesel or kerosene, according to the need to sometimes use warm lye, etc. No matter use which kinds of detergent, often should filter clean. After cleaning, coating anticorrosive oil or antirust grease on the bearing immediately. 2, examination and judgment to judge removed KOYO bearing can use again, to inspect the dimension precision, rotating accuracy, internal clearance and mating surface, raceway surface, cage and seal rings etc. About the test results that can be used by bearing the judgement or master of bearing. Judgment standard according to the mechanical properties and important degree and inspection cycle. If you have the following injury, bearing shall not be used again, must be replaced. 1) Bearing parts of rupture and defects. 2) The raceway surface material on the surface of the rolling strip. KOYO bearing fault identification method to remove the check, can identify or predict the bearing has a trouble-free operation, to increase productivity and efficiency is very important. Main recognition method is as follows: 1) Through the voice recognition through the voice recognition need to have a lot of experience. Must go through adequate training to achieve voice can identify the bearing and the bearing. Therefore, should as far as possible from staff to carry out the work. With listening gear or listening bar on the shell can be clearly heard the sound of the bearing. 2) Through the method which can identify working temperature comparison method of identification, is limited to use in place of running condition is not change. Therefore, must carry out continuous recording of temperature. Failure, temperature not only, also can appear irregular change. 3) Through the state of lubricant, and the recognition of lubricant sampling analysis, through its pollution degree is mixed with foreign bodies in the judgement or metal powder, etc. The method for big can't close to observe KOYO bearing or bearing are particularly effective.