Jersey John
Stainless
- Joined
- May 29, 2015
- Location
- Beccles / Suffolk, United Kingdom
Hi Folks
I'm sure when a machine manufacturer designs a lathe headstock many factors are taken into account like construction of the main spindle and it's bearings with a matched size and weight of chuck ... and obviously swing over bed clearance etc etc.
I've re-acquired a HLV-H and Hardinge's main "Standard" chucks (both 3 and 4 jaw) are 5" (125mm) diameter ... but I'd like to make my main "In use" chuck a 6" (Actually 160mm here in Europe) ...
Will I "really" be producing extra long term stress to the bearings and spindle. The machine is in great condition for it's age and it's never going to see daily industrial use.
I'm also aware of the fact that the larger the chuck diameter the lower it's maximum RPM and in the case of the 6" (160mm) it's maximum rating is still slightly higher than the HLV-H's maximum RPM
Comments welcomed before I splash out on a "larger" chuck and matching machined backplate.
Thanks in anticipation
John
I'm sure when a machine manufacturer designs a lathe headstock many factors are taken into account like construction of the main spindle and it's bearings with a matched size and weight of chuck ... and obviously swing over bed clearance etc etc.
I've re-acquired a HLV-H and Hardinge's main "Standard" chucks (both 3 and 4 jaw) are 5" (125mm) diameter ... but I'd like to make my main "In use" chuck a 6" (Actually 160mm here in Europe) ...
Will I "really" be producing extra long term stress to the bearings and spindle. The machine is in great condition for it's age and it's never going to see daily industrial use.
I'm also aware of the fact that the larger the chuck diameter the lower it's maximum RPM and in the case of the 6" (160mm) it's maximum rating is still slightly higher than the HLV-H's maximum RPM
Comments welcomed before I splash out on a "larger" chuck and matching machined backplate.
Thanks in anticipation
John
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