Double pillow block bearing disassembly and installation precautions

Disassembly steps and precautions:

1. Use an Allen wrench to loosen the locking screw on the bearing eccentric sleeve, then use a small iron rod to insert the counterbore on the eccentric sleeve of the top cover, and loosen the eccentric sleeve against the direction of shaft rotation.

2. Loosen the bolts that fix the double pillow block bearing. Remove the bearing from the shaft together with the double pillow block bearing. Note before removing the double pillow block bearing at one end of the shaft. The bearing housing bolts at the other end of the shaft should be loosened to avoid damage to the bearings at both ends.

Installation steps and precautions:

1. Before installing the bearing on the shaft, you must first remove the fixing pin of the bearing jacket, and at the same time, polish the surface of the journal to smooth and clean, and apply oil to prevent rust and lubrication at the journal (allow the bearing to rotate slightly on the shaft).

2. Lubricate the double pillow block bearing and bearing mating surface, and put the bearing in the double pillow block bearing. Then put the assembled bearing on the shaft together with the bearing seat. Push to the required position for installation.

3. Do not tighten the bolts of the double pillow block bearing first, and make the bearing jacket rotate in the bearing seat. At the same time, install the double pillow block bearing and seat on the other end of the same shaft, rotate the shaft a few times, and let the bearing automatically position itself. Then tighten the double pillow block bearing seat bolts.

4. Install eccentric sleeve. First put the eccentric sleeve on the eccentric step of the bearing inner sleeve, and tighten by hand in the direction of shaft rotation. Then insert a small iron rod or press against the counterbore on the eccentric sleeve. Tap the small iron rod with the hammer in the rotation direction of the shaft. Make the eccentric sleeve installed firmly, and finally tighten the hex socket screw on the eccentric sleeve.

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