wolfenstien
Aluminum
- Joined
- Oct 6, 2009
- Location
- Maine
Did a Centroid Retrofit on a Mori Sl1H I had last fall. Been happy with it so far. Don't use it much and am realizing now that I should have done the bigger Mori lathe I've got which has a dead control.
Anyway been looking it over trying to get a parts list together and finally pulled off the Z axis motor. I knew that the yaskawa motors used tapered shafts and I don't have a plan yet on how to deal with that.
I've attached some photos of the gearbox (Large spur gear attached to the ballscrew) and the spur gear that was mounted to the motor shaft. I'm already planning on using a DMM 1.8kw AC servo as a replacement but the new motor has a 22mm cylindrical shaft.
I didn't grab a diameter off the gear last night but its 24 tooth and looks to be about 2" in diameter. (I'm totally guessing here) Wasn't sure if I could just buy an off the shelf replacement.
A misumi SSG2-24J22 spur gear looks like its probably pretty close to what I'm looking for. Hardened, ground, 22mm bore with keyway etc. SSG2-24J22 | Ground spur gear SSG | KOHARA GEAR INDUSTRY | MISUMI South East Asia
Does anyone actually know if its as simple as that or is it likely that there is something special about this spur gear? This is a positional system to accuracy of the gear is important. Is there someplace to look for these precision gears?
Also I'm assuming any gearbox has got to have some running clearance to function reliably. These old Mori's are known for their excellent rigidity and accuracy. Does this work due to backlash compensation? Or was the fit on this gearbox really that close?
Anyway been looking it over trying to get a parts list together and finally pulled off the Z axis motor. I knew that the yaskawa motors used tapered shafts and I don't have a plan yet on how to deal with that.
I've attached some photos of the gearbox (Large spur gear attached to the ballscrew) and the spur gear that was mounted to the motor shaft. I'm already planning on using a DMM 1.8kw AC servo as a replacement but the new motor has a 22mm cylindrical shaft.
I didn't grab a diameter off the gear last night but its 24 tooth and looks to be about 2" in diameter. (I'm totally guessing here) Wasn't sure if I could just buy an off the shelf replacement.
A misumi SSG2-24J22 spur gear looks like its probably pretty close to what I'm looking for. Hardened, ground, 22mm bore with keyway etc. SSG2-24J22 | Ground spur gear SSG | KOHARA GEAR INDUSTRY | MISUMI South East Asia
Does anyone actually know if its as simple as that or is it likely that there is something special about this spur gear? This is a positional system to accuracy of the gear is important. Is there someplace to look for these precision gears?
Also I'm assuming any gearbox has got to have some running clearance to function reliably. These old Mori's are known for their excellent rigidity and accuracy. Does this work due to backlash compensation? Or was the fit on this gearbox really that close?