Ha5c Worm Gear

[engine tech art]

Need a worm gear has some loose sections and binds in others.
Called Haas and they said to send the unit in and we will take care of it.The problem is it will take 1 month before i get it back and i need it next week. Anybody now who has made one or got someone to make one. I found a shop that will cut the gear so i ordered aluminum bronz
today so i have a backup plan to make the blank on monday .
It would save some time if i could just buy one. They woulden"t even give
me a price on the rebuild. Not the way to run a buisness. Someone needs
parts give it to them.

Does anyone know where i can get one?

Thanks

[HuFlungDung]

Good luck with that.

Have you thoroughly checked the worm and gear for the exact cause of the problem? Is the worm shaft straight?

I suspect the fact of the matter is that to attain the low backlash that the Haas tables generally exhibit requires a great deal of care in cutting the gear, as a much closer tolerance is required than for a commercial gear reducer. Concentricity of the spindle and gear assembly is critical as well. Alignment of the worm and gear is critical.

Is the shop you are hiring going to be able to fiddle and fuss with this gear until they hit the magic numbers?

[engine tech art]

The worm shaft is within 2 tenths it's ok I am going to make 3 .
I know the adjustment is only 5 thow it will take at least a couple trys to get it.
and then shim it . If there is diferent sizes then stamp the one that is in the
machine then it can be replaced . holding a 3 thow tolerence is not a hard thing to do . I will le you know how it works out.

Thanks

[Gandalf]

Hi I am having a unit down too. The same problem as yours. Haas says they don't even fix this anymore. If your fixup works out I would like to go the same route. Maybe you can sell me a set of gears?

[engine tech art]

I will let you know how it works. It's going to be at least a week.

Art

[HAILINHAAS]

Did you ask Haas for a loaner while yours is getting fixed?

[engine tech art]

They did not offer one so i think not.
anyways the blanks are done did 3 pc with different highths for
the offset If anyone wants one i may make some more.

[Gandalf]

Hey Art

Tell me how much and when I can pick it up. I am in Midland/ Ontario, just north of you. Can you give me the exact model number just to verify it will work?

Wolfgang

[engine tech art]

I will let you know friday the gear guy has everything housings and all.

later