Dismantling the technique of outer spherical bearing

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      Spherical bearing is a bearing outer surface is a spherical surface, self-aligning bearings on both sides of the bearing with sealing cover. 390000 series of spherical bearing is a kind of common agricultural machinery, in 2, Futian, Xinjiang Zhongyuan combine harvester, is widely used by the bearing, a locomotive with as many as 30 disc. 390000 series of spherical bearing is through the eccentric sleeve bearing inner ring and the shaft is fixed on the eccentric sleeve, the inner six angle screw fastening. In the repair of machine hand, many not disassembling the bearing, so it is necessary to introduce the technical points and 390000 series of outer spherical bearing and the matters needing attention:
A, disassembly
The first 1 locking screws of eccentric sleeve on the six angle wrench to loosen with inside, and then use a small iron bar into the sink of eccentric top hole, against the axis of rotation direction play loose eccentric sleeve.
2 unscrew the bolts. The bearing and a bearing seat together removed from the shaft. Note in the bearing and shaft before. Should bearing bolt loosen the other end of the shaft, so as to avoid each other at both ends of the bearing strength and damage.
Two, installation
1 bearing to the shaft before installing, you must first remove the fixed pin bearing jacket, while the journal surface polished smooth and clean, and in the shaft neck anoint rust and lubrication (bearings in the shaft to allow a slight rotation).
2 in the bearing seat and the bearing surfaces coated with lubricating oil, the bearing load in the bearing seat. Then the assembled bearing and the bearing seat is sheathed on the shaft. Pushed to the desired location for installation.
The 3 fixed bearing seat do not tighten the bolts, let the bearing sleeve bearing can rotate within the. Also installed on the same shaft end bearing and seat, axis rotating ring, so that the bearing itself automatically find the location is. Then the bearing bolts.
4 eccentric sleeve. The eccentric sleeve is sheathed on the eccentric sleeve bearing on the steps, and tighten by hand along the rotation direction of the shaft. Then insert a small iron bar or resist sink hole on the eccentric sleeve. Hammer percussion along the axis of rotation of the small iron bar. The eccentric sleeve is installed firmly, finally locking eccentric sleeve within six angle screw.


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