catalytic
Cast Iron
- Joined
- Feb 4, 2010
- Location
- Boston, Los Angeles, and Cleveland
The pics show a cast iron gib for a small Rusnok milling machine. It is retained in place only by a roll spring pin. The hole for the pin has wallowed out, esp. towards the non-bearing side.
What would you do to it before reinstalling? My tentative plan was to reinstall the gib/pin, then use a punch at a 45° angle to punch the wallowed parts into the pin.
Since the pin is the only thing retaining the gib, I have seen a few machines where the pin slips out, then the gib slides out as someone moves the x-axis. It appears to be a design flaw.
The gib is 0.125" thick. Pliers in pics for scale. The second, non-wallowed gib shows the correct size hole, but it's hard to see as it has not been deburred/countersunk like the wallowed one has.
Pic of wallowed side:
Pic of non-wallowed side (lower gib in picture -- top one is brand new steel one but not deburred and I don't want to use it)
What would you do to it before reinstalling? My tentative plan was to reinstall the gib/pin, then use a punch at a 45° angle to punch the wallowed parts into the pin.
Since the pin is the only thing retaining the gib, I have seen a few machines where the pin slips out, then the gib slides out as someone moves the x-axis. It appears to be a design flaw.
The gib is 0.125" thick. Pliers in pics for scale. The second, non-wallowed gib shows the correct size hole, but it's hard to see as it has not been deburred/countersunk like the wallowed one has.
Pic of wallowed side:
Pic of non-wallowed side (lower gib in picture -- top one is brand new steel one but not deburred and I don't want to use it)