| 摘要 |
A combined ring gear rounder and gear tooth burnisher in which the gear is driven in rotation by a drive pinion, a burnishing pinion engages the gear teeth diametrically opposite to the drive pinion, means are provided for moving the burnishing pinion toward and away from the drive pinion to provide for loading and to provide burnishing pressure between the teeth of the burnishing pinion and ring gear. Rollers engaging the smooth side of the ring gear at opposite sides thereof at zones intermediate the drive and burnishing pinions are movable radially inwardly and outwardly with respect to the ring gear to effect ring rounding.
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