bevel gear chewed up by the hub bevel gear

took mixer apart down to removal of gear case cover.upon removal of this cover found the bevel gear and hub bevel gear chewed up .removed them both then replaced them both.and also had to solve a clearence problem between the 2 gears they were too loosely meshing. so had to push the hub retainer closer to take up the meshing slack.not sure my repair will hold but i have another set of gears and another solution that will surely fix it.