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Analysis of common axial tightening methods for bearing rings
Source: Bearing network time: 2018-03-13
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(1) Regarding the case where the bearing speed is high; when receiving a large axial load; the end face of the nut and the bearing ring should be straight with the axis of rotation of the shaft; otherwise, tightening the nut will damage the correct device orientation of the bearing; Rotational accuracy and service life; in particular, the inner bore of the bearing and the shaft are tightly controlled for loose fit. To avoid loosening of the nut during rotation; adopt proper anti-loose method; use slotted nut and retaining washer Secure the bearing to avoid loosening the nut. When tightening, insert the internal teeth of the washer into the key groove of the shaft; then bend any external teeth into the bad mouth of the nut.
(2) The shaft is fastened with the elastic retaining ring in the axial load; the bearing speed is not high; if the thread on the journal is difficult, the cross section is rectangular and the elastic retaining ring is fastened. Demolition and convenience; the area occupied.
(3) End face thrust washer fastening is difficult for the thread on the journal; the bearing speed is high; in the case of large axial load; the washer is fastened with two screws at the shaft end; with a retaining washer or wire Anti-loose.
(4) Fasten the double row radial spherical bearing with low speed and accepting smooth radial load and small axial load with the adapter sleeve; it can be used with the taper adapter sleeve on the optical axis. The nut and the retaining washer are fastened; the nut is tightened by the nut to tighten the sleeve.
(5) The tapered tapered bore bearing of the tapered bore bearing is placed on the tapered journal; the axial load must be tightened to the shaft and the bearing. The taper of the bore is directional; End and the thread at the end of the shaft; can be directly tightened with a nut. If the bearing is not at the shaft end; and the thread is not allowed on the shaft; in this case, the threaded ring of the two halves can be engaged to the groove of the shaft. Inside; tighten the bearing with a nut.
(6) The fastening of the shoulder and the rounded corner is not in a special case; when the shoulder and the roundedness of the shaft are not up to the dimensions of the device listed in the sample; the transition ring can be used for axial support.
2. The outer ring of the bearing outer ring is arranged in the bearing housing; one end is usually fixed by the shoulder of the box; the other end is fastened with the end cover, the threaded ring and the hole with a circlip. The shoulder on the bearing box And the dimensions of the axial fastening parts and the touch parts of the bearing rings; can be determined according to the device scale of the various types of bearings listed in the sample bearing scale table.
(1) End cap fastening is used for all types of radial bearings and radial thrust bearings; in the case of high bearing speed and large axial load. End caps are tightened with screws to compress the bearing outer ring; It can also be sealed with a curved road.
(2) Threaded ring fastening is used for high bearing speed and large axial load; it is not suitable for tightening with end cover. When tightening the radial thrust bearing with threaded ring; can adjust the axial clearance of the bearing.
(3) The axial position of the hole with the elastic retaining ring. The 鹦 鹦 鹦 æª (18) 圃旒虻ィ 糜诔惺 〉 〉 〉 嵯蚋 嵯蚋 嵯蚋 嵯蚋 嵯蚋 嵯蚋 嵯蚋 . . . . . . . . 轴承 轴承 轴承 轴承 轴承 轴承 轴承 轴承Add an adjustment ring; it is easy to adjust the axial orientation.
(4) The single-row deep groove ball bearing with the retaining groove on the outer ring of the retaining ring is fastened; it is fastened with the retaining ring. When the bearing box is unable to process the stop rib due to the condition constraints, or the parts need to be reduced At the time of scale; use this type of uranium bearing.
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