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Unique details of axial positioning of bearings
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.1) Spherical roller bearings with fixed sleeve positioning bearing speed; receiving smooth radial load and small axial load; can be used on the optical axis by means of conical adapter sleeves. Move the washer to position it. Use the nut to tighten the friction of the sleeve to position the bearing.
.2) The inner hole has a tapered bearing. The inner hole has a tapered bearing on the taper shaft; the requirement is to make the axial load check the top shaft and the bearing; therefore, the device should pay attention to the directionality of the inner hole taper. End and at the shaft end promise to be machined into a thread; can be directly positioned with a nut.
If the bearing is not at the shaft end of the device; and the shaft is not allowed to be machined into a thread. In this case; the threaded ring that is merged with the two halves can be inserted into the groove of the shaft; then the nut is used to position the bearing.
.3) Special positioning in certain special cases; the shoulder and rounded dimensions of the shaft cannot be cut off according to the equipment dimensions listed in this catalogue; transition gaskets can be used as axial supports.
.4) The retaining spring retaining ring positioning shaft accepts the axial load is not large, the rotating speed is not high, the shaft is short and the threading is difficult to machine on the journal; the elastic retaining ring with a rectangular cross section can be selected. The method of loading and unloading is very convenient; the position is occupied.
.5) The thrust washer is positioned when the journal is short and the shaft is machined into a thread; if the bearing speed is high and the axial load is large; the washer can be positioned; that is, the washer is used on the shaft end face. More than one screw for positioning; use a retaining washer or wire to screw it; avoid loosening.
.6) The nut is positioned at a high bearing speed and accepts a large axial load; the end face of the nut and the inner ring of the bearing should be straight with the axis of rotation of the shaft. Otherwise, even tightening the nut will damage the bearing orientation of the bearing and The normal working condition of the bearing; the rotation precision and service life of the descending bearing. The unique feature is that the inner hole of the bearing and the shaft are loosely matched; more demand is strictly controlled.
In order to avoid the looseness of the nut during the rotation process; the need to adopt appropriate technical measures to avoid loosening. Use the nut and the retaining washer to position; insert the inner teeth of the retaining washer into the keyway of the shaft; One of the bends into the incision of the nut.
2. When the outer ring of the bearing outer ring is in the equipment of the outer casing hole; the inner side of the outer casing hole usually has the orientation of the shoulder fixed bearing; the other side is positioned with the end cover, the thread ring and the hole with the elastic retaining ring. .
.1) Elastic retaining ring positioning The axial position occupied by this positioning method. The 鹦 鹦 鹦 悖 悖 圃旒虻ィ 〉 〉 〉 〉 〉 〉 〉 〉 〉 〉 〉 〉 〉 〉 〉 〉 〉 〉 〉 在 在 在 在 轴承 轴承Add an adjustment ring; easy to adjust the axial orientation.
.2) Deep groove ball bearing with retaining groove on the outer ring of the bearing; can be positioned by the stop ring.
This type is used when the retaining shoulder cannot be machined due to conditional constraints in the housing bore; or when it is necessary to reduce the generalized dimensions.
.3) Thread ring positioning bearing has higher speed; axial load is larger; it is not suitable for positioning with end cover; threaded ring can be used to position radial bearing and thrust bearing; at this moment can be used to adjust axial clearance of bearing.
.4) End cap positioning end cap positioning is used for all types of radial bearings and angular touch bearings; in the case of high bearing speed and large axial load. End caps are used to position the outer ring of the compression bearing; The cover can also be made into a labyrinth seal.
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