In the design process of transmissions, one major criterion is the resulting noise emission of the powertrain due to gear excitation. Within the past years, much investigation has shown that the noise emission can be attributed to quasi-static transmission error. Therefore, the transmission error can be used for a tooth contact analysis in the design process, as well as a characteristic value for quality assurance by experimental inspections.

Excessive machine tool vibration during a precision grinding operation can result in poor workpiece quality in the form of chatter, rough finishes, burn, etc. One possible reason for excessive vibration is directly associated with the relationship between natural frequencies of a machine tool system and the operating speed of the grinding wheel spindle.

No, not that president! I mean Matt Croson, the new president of the American Gear Manufacturers Association, who started in June and has been busy getting to know the gear industry and AGMA's members.

There is an old saying that “the fools always win in the end because stupidity has no limits, while genius does.” Occasionally we see this acted ou...

Continuing with the Manufacturing Month theme… Darle W. Dudley referred to the gear trade as an “art.” This reminds me of the early days of Ge...

This proposed standard would not make any recommendations regarding the required quality for any application. The intent is to establish standard pre-finish quality classes for typical finishing operations, which only include the inspection elements that are important to properly evaluate pre-finish gear quality as it applies to the finishing operation. It would be the responsibility of the manufacturing/process engineer, quality engineer, or other responsible individual to establish the required pre-finish quality class for their application.

News on the latest products in the industry.

Comprehensive descriptions of what you will find in the booths of many leading gear industry suppliers at IMTS 2016.