redneck joe
Supreme Mariner
- Joined
- Mar 18, 2009
- Messages
- 11,446
So, built wrong and it broke.failed heat treatment on the worm allowed the teeth to deform and wipe out the teeth on the wheel. Additionally, centrifugal cast C91700 was spec'd and the vendor used sand-cast C91700 which is about 60% the strength. so the worm wheel failed sooner than it should.