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Description of parameters of FAG single row tapered roller bearings

by:JNSN     2022-03-17
FAG Single Row Tapered Roller Bearing Features Tapered roller bearings consist of solid inner and outer rings with tapered raceways and tapered roller assemblies using stamped steel cages. Bearings are separable. Therefore, the inner and outer rings with roller and cage assemblies can be installed separately. In addition to the standard size and standard marked bearings, there are special metric and inch bearings, these bearings are not standard marked Z-5 or F-8. In the new design, please use the metric tapered roller bearing first. Radial and axial load carrying capacity Tapered roller bearings are capable of bearing axial loads in one direction and high radial loads. Usually two tapered roller bearings are paired in a symmetrical arrangement. Contact angle The axial load carrying capacity depends on the contact angle; that is, the larger the contact angle, the greater the axial load the bearing can withstand. The factor e in the dimension table indicates the size of the bearing contact angle and load capacity. Angular misalignment compensation The improved contact line between the tapered rollers and the inner and outer ring raceways optimizes stress distribution at the point of contact, preventing edge stress and allowing bearing misalignment compensation. When the load ratio P/Cr is 0.2, the relative inclination angle of the inner and outer rings of the bearing cannot exceed 4 minutes. If you need to bear a larger load or a larger inclination angle, please contact Qingdao Ruijing Electromechanical Equipment Co., Ltd. Sealed Standard design tapered roller bearings are unsealed. Lubricated bearings can be lubricated with oil or grease. Operating temperature Single row tapered roller bearings are suitable for an operating temperature range of 30°C to +120°C. If the continuous working temperature is +120 C, please contact us Qingdao Ruijing Electromechanical Equipment Co., Ltd. Outside diameters greater than 240 mm are dimensionally stable at +200 °C. Single row tapered roller bearing cage Single row tapered roller bearing adopts stamped steel plate cage. Since the cage has a certain amount of protrusion, the installation dimensions and cage protrusion in the dimension table, page 111, must be noted. Suffix Suffixes for existing designs, see table. Existing Design Design and Safety Guidelines Equivalent Dynamic Load Equivalent Dynamic Load P is suitable for carrying radial and axial loads. It is consistent with the calculated life of the bearing under the combined load in the actual process. For bearings under dynamic load, the following formula is used: single row bearing Fa kN bearing axial dynamic load under dynamic load Fr kN bearing radial dynamic load e, Y factor, see dimension table P kN Equivalent dynamic load under combined load. Suffix Description Design A Improved Internal Design Standard X External Dimensions Compliant with International Standard P5 Higher Precision Special Design Load Ratio Bearing Equivalent Dynamic Load P u003d FrP u003d 0.4 Fr + Y Fa Equivalent Static Load Equivalent Static Load P0 Suitable for Bearing Radial and Shaft to the load. The stress caused by it at the center point of the maximum force area between the contact surfaces of the rolling elements and the raceway is equal to the stress caused by the actual load synthesis. For a single bearing under static load, use: Single bearing under static load F0a kN Bearing static axial load F0r kN Bearing radial static load Y0 For parameters, see dimension table P0 Bearing equivalent static load under combined load kN. Minimum load To ensure that the bearing does not slip during operation, the bearing bears at least a minimum radial load Fr min in the radial direction. This is especially important for high-speed, high-acceleration conditions. Under continuous operation conditions, the minimum radial load of roller bearings with cages must meet P/Cr 0.02. It is the bearing itself that affects the speed limit of the bearing. The limit speed nG must not be exceeded, see dimension table. Bearing pairing design Only the peripheral structure design is reasonable, the bearing can give full play to its performance. Shaft and housing tolerances For cylindrical bore radial bearings, see table, page 37, for recommended shaft tolerances. Recommended housing tolerances for radial bearings, see table on page 38. The maximum value of chamfering radii ra and rb of adjacent parts and the diameter of adjacent structural shoulders are given in the installation dimension table. Cage convex The cage protrudes slightly to the side. To prevent scratching of the cage, the lateral minimum dimensions Ca and Cb in the dimension table must be considered in the design of adjacent structures.
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