How to test the bearings and shaft
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For larger diameter bearing, gap is larger, with a narrow feeler direct detection. For small diameter of the bearing, clearance is lesser, inconvenience with feeler, bearing clearance, however, must use the thickness of the appropriate feeler.
2, the lead test
Pressure lead method is used to inspect bearing clearance is detected using feeler accurate, but more trouble. Aluminium wire used in the test should be soft, shoulds not be too big or too small in diameter, the diameter of the most ideal for the clearance of 1.5 to 2 times, showed soft lead wire for testing the actual work.
Detection, first open the bearing cover, the diameter of the lead wire, appropriate to cut it into 15 ~ 40 mm long segments, on the shaft neck and upper and lower bearing interface, cover the bearing cover, tighten the retaining bolt torque by the regulation, unscrew the bolt, then remove the bearing cover, micrometer is used to inspect flattening lead wire thickness, and the average of the top bearing clearance.
If the top gap is too small, can add pad on the surface of the upper and lower tile combination. If too large, the reduction of pad, scraping the inquiry or watering the tile again.
The adjustment of the bearing force: in order to prevent the bearing shell may occur in the process of job rotation and axial movement, besides the fit interference and stop parts, bearing bush must also to compaction with bearing cover, tip clearance method, measurement method and measure the thickness of the soft lead wire, can be used to calculate the bearing force (using the elastic deformation of axle bush compressed to say)
General bearing compression force in 0.02 ~ 0.04 mm. If the clamp force do not conform to the standard, usable increase or decrease of the bearing and bearing joint surface of the gasket thickness method to adjust, tile back no padded.
Sliding bearing in addition to to ensure the radial clearance, should also guarantee the axial clearance. Detection of axial clearance, remove the shaft to an extreme position, and then measured with a feeler dial indicator or shaft position from one extreme to another extreme position of channeling momentum namely axial clearance.
When the clearance is not in conformity with the provisions of the sliding bearing, should be adjusted. Often use shim adjustment of open type bearing radial clearance (clearance).
234407BM 234706BM 234406BM 517/2860V/YA 5610/2500 517/1720X1V 527/1181M 510/1180M 517/930 510/670 590/560 510/500 52780 59080 517/368M 51760U 517/238 6207-2ZN 6206-2ZN 6205-2ZN 6204-2ZN 6203-RZ 6203-2ZN 6202N 6202-2ZN 6201-2ZN 6200ZZ 6200-2ZN 62/32-ZN 62/32-Z 62/32N 62/32-2Z 62/32-2RZ 62/32-2RS 62/28-2RZ 62/22-2RZ 61996 61992 61988 61984
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1, the scale testFor larger diameter bearing, gap is larger, with a narrow feeler direct detection. For small diameter of the bearing, clearance is lesser, inconvenience with feeler, bearing clearance, however, must use the thickness of the appropriate feeler.
2, the lead test
Pressure lead method is used to inspect bearing clearance is detected using feeler accurate, but more trouble. Aluminium wire used in the test should be soft, shoulds not be too big or too small in diameter, the diameter of the most ideal for the clearance of 1.5 to 2 times, showed soft lead wire for testing the actual work.
Detection, first open the bearing cover, the diameter of the lead wire, appropriate to cut it into 15 ~ 40 mm long segments, on the shaft neck and upper and lower bearing interface, cover the bearing cover, tighten the retaining bolt torque by the regulation, unscrew the bolt, then remove the bearing cover, micrometer is used to inspect flattening lead wire thickness, and the average of the top bearing clearance.
If the top gap is too small, can add pad on the surface of the upper and lower tile combination. If too large, the reduction of pad, scraping the inquiry or watering the tile again.
The adjustment of the bearing force: in order to prevent the bearing shell may occur in the process of job rotation and axial movement, besides the fit interference and stop parts, bearing bush must also to compaction with bearing cover, tip clearance method, measurement method and measure the thickness of the soft lead wire, can be used to calculate the bearing force (using the elastic deformation of axle bush compressed to say)
General bearing compression force in 0.02 ~ 0.04 mm. If the clamp force do not conform to the standard, usable increase or decrease of the bearing and bearing joint surface of the gasket thickness method to adjust, tile back no padded.
Sliding bearing in addition to to ensure the radial clearance, should also guarantee the axial clearance. Detection of axial clearance, remove the shaft to an extreme position, and then measured with a feeler dial indicator or shaft position from one extreme to another extreme position of channeling momentum namely axial clearance.
When the clearance is not in conformity with the provisions of the sliding bearing, should be adjusted. Often use shim adjustment of open type bearing radial clearance (clearance).
