The Influence of a Grinding Notch on the Gear Bending Strength Rating
The article "The Influence of a Grinding Notch on the Gear Bending Strength Rating" appeared in the November/December 2018 issue of Gear Technology.
To achieve the requested quality, most gears today are ground. The usual grinding process includes treating the gear flank but disengaging before reaching the root rounding area. If the gear is premanufactured with a tool without protuberance, then at the position where the grinding tool retracts from the flank a grinding notch in the tooth root area is produced. Such a notch may increase the bending stresses in the root area, thus reducing the strength rating.
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