Blacksheep10
Well-known member
- Joined
- May 19, 2020
- Member Number
- 91
- Messages
- 468
I don't venture out of CC anymore, so here goes
Welding a spider pin to a carrier. The spiders started galling on the pin slightly (barely), but it was enough to snap the roll pin, float it out, and ruin the R&P. This is on a 35 year old Bomag roller compactor. The ring and pinion were like 3K. Can't buy a whole new third, hard/impossible to put something else in there, making it work. The thing goes 3 mph, hard to believe the spiders are winging that fast even with a 4:1 planet on the end.
The question. The spider pin only has about .015-.020" slop. I'm welding it in after polishing the pin and inner bore of spiders. Cast carrier, hard pin. I've used dual shield 7100 E71T with 350 perheat before on cast with great success, but the guy wants it tig'd. What filler am I looking for in this application? I currently only have 308L and er70s in the shop, but can order whatever.
Welding a spider pin to a carrier. The spiders started galling on the pin slightly (barely), but it was enough to snap the roll pin, float it out, and ruin the R&P. This is on a 35 year old Bomag roller compactor. The ring and pinion were like 3K. Can't buy a whole new third, hard/impossible to put something else in there, making it work. The thing goes 3 mph, hard to believe the spiders are winging that fast even with a 4:1 planet on the end.
The question. The spider pin only has about .015-.020" slop. I'm welding it in after polishing the pin and inner bore of spiders. Cast carrier, hard pin. I've used dual shield 7100 E71T with 350 perheat before on cast with great success, but the guy wants it tig'd. What filler am I looking for in this application? I currently only have 308L and er70s in the shop, but can order whatever.
It's hard to find, but it is out there. Techalloy 99 I think is one of them.