Cross roller bearing raceway gears and repair

Commonly used in the manufacture of gears with steel quenched and tempered steel, hardened steel, case hardening steel and nitriding steel. Slightly lower than the strength of forged steel, commonly used in sizes larger gear; poor mechanical properties of gray cast iron can be used for light load of open gear drive; ductile iron can partially replace the steel gears; multi-purpose plastic gear at light load and low noise requirements of the place, with its paired gear generally good thermal conductivity of steel gears. Once the gear wear, how to fix next described in detail.

Crossed roller bearing Gear Repair:

The best way to go is to measure the wear of the ring gear worst damage teeth, the gear module to ensure the same case, by calculating, re-hobbing, negative change of the gear position, the same, the gear unit associated with it The output pinion positive displacement, in order to ensure that the two gears meshing center distance constant, a pair of gears to high displacement. Followed by the corrupted repair worn teeth first with liquid plastic or surfacing and leave allowance, then hobbing to its original size. To ensure that the original transmission parts and spare parts (such as the output pinions, etc.) can be used again, the need to ensure the same gear center distance of tooth repair, using the method of surfacing reprocessing.

Raceway Repair:

Four raceway formed by the diameter of the square cross-section, the diagonal perpendicular to the ground, that is, each raceway by both the overall cross-sectional diameter of the center line of a 45 ° angle, the raceway surface damage is more serious, oval-shaped, with a flange ring and the annular surface dents to the front indicated baselines grinding raceway surface (due to high surface hardness), by measuring the roundness deviation of 3mm, after grinding, measuring hardness, were HRC30 ~ 40, in order to ensure a 45 ° angle, special production model (see figure II) is used to measure angles. Raceway surface-hardening, quenching hardness HRC55 ~ 60. Then again grinding.