We installed the induction-hardened helical gear in our main speed reducer about five weeks ago. The previous gear from another supplier started showing pitting after three months, so we needed something that could handle sustained peak torque without surface fatigue.
The gear arrived with a test report showing case depth at 2.5 mm and hardness within the 58–62 HRC range. We mounted it on a 75 kW reducer driving a conveyor system. During the first week we ran it at 80% load to check for abnormal noise or vibration. The helical profile ran noticeably quieter than the straight-cut gear we had before.
After a month of daily operation, including several ramp-ups to full torque, the tooth flanks show no visible wear or discoloration. The backlash measured at the output shaft stayed within 0.08 mm, which is better than our spec. We plan to keep monitoring it quarterly, but so far the gear has met every claim on the datasheet.
What stood out was the communication during the ordering process. The engineering team asked for our exact center distance and face width instead of just quoting a standard module. That attention to fit saved us from having to modify the housing.