Company cases about About the wear of the gear motor bearings

About the wear of the gear motor bearings

2025-07-03

The bearings of the gear motor will be worn during operation, but there is a limit to its wear, otherwise it will not work normally. Among them, the needle bearing and seat hole wear, the meshing gear seat hole and the needle bearing and the shaft neck should have a clearance of 0.01-0.08mm, and the meshing gear shaft neck is usually meshed. If it exceeds this range, it needs to be replaced immediately.

If the tooth surface shows uniform wear, the wear along the tooth length direction should not exceed 30% of the original tooth length, the tooth thickness should not exceed 0.40, the gear meshing area should not be less than 2/3 of the tooth surface, the running gear meshing clearance should generally be 0.15-0.26mm, and the gear wear transmission gear is under normal working conditions.

The use limit is 0.80mm, the meshing clearance of the engaging gear should be 0.10-0.15mm, and the use limit is 0.60mm. It can be measured with a dial indicator or soft metal rolling method. If the clearance is exceeded, it should be replaced in pairs. Mainly due to the gear meshing clearance not meeting the requirements, 2 gear tooth broken gear tooth broken. The gear tooth meshing position is improper or it is subjected to a large impact load during operation. If there is a small breakage of no more than 2mm on the edge of the gear tooth, it can be repaired with an oilstone and continued to be used.

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