my 3 jaw self centering chuck has a 3-4 mm run out on it what would be the best way to sort it out
Beat me to it.3-4mm is a massive run out for a lathe Chuck, are you sure the jaws are installed in the correct order?
Check the runout on the outside diameter of the chuck and on the OD of the backplate. This should tell you if the backplate is true to the spindle and the chuck is true to the backplate.
Done that it's within a thoCheck the runout on the outside diameter of the chuck and on the OD of the backplate. This should tell you if the backplate is true to the spindle and the chuck is true to the backplate.
I don't know if there the right ones as if you put no 1 in then 2 then 3 I get 10-15 mm run out but if you put no 1 then Miss no 2 put no 3 in then do a full turn round and then put no 2 in I get the least amount of runout so I'm just trying to get it running somewhat true for now till I can buy a new one for it3-4mm is a lot.
Have you inserted the jaws in the correct order/slots.
Yup they are numbered but I if I put no 2 in before I do a full turn it has 10-15 mm runout I'm still putting them all in the right holesJaws are numbered as a set, at least quality ones are. I'd say that's a very odd set if you get a full rotation before adding the No. 2 jaw.
It is going to be temporary but it's going to be a long temporarywell if you cant fix it and its only temporary stick a 4.0mm packing on the jaw that's out and it will be true then
It's the right number to the slot but I don't know if they are a correct set of jaws or if they are even a matching setAre you sure it's the correct jaw. Has it been damaged.
They look very similar but it's the only set that came fitted to the latheHave you minutely inspected all 3 jaws to check they are all the from same set?
They look very similar but it's the only set that came fitted to the lathe
Size?If anyone knows of a 3 jaw or 4 jaw self centering in good condition going cheapish let me know
with a backplate or withoutIf anyone knows of a 3 jaw or 4 jaw self centering in good condition going cheapish let me know
6"Size?
Don't bother with 4 jaw sc unless working with square bar. 4 jaw independent is far more usefull.
Anywith a backplate or without