- #1
ROGER WALL
- 3
- 0
Hello all,
Named this WORK because I don't know if a am talking about Force or Torque !
I am trying to do up a M20 nut on a shaft - would like to tighten to say 200 N.m which I can do with my scawny arms and a 400mm long spanner.
BUT the situation doesn't allow for me to actually place the spanner on the nut. I have to somehow tighten it when perpendicular to the line of the shaft - approx 75mm away.
I plan to machine the nuts so they look like a worm gear (these are mass produced via CNC and so should be of reasonable quality). I will then
use a worm sitting on the nut with a shaft out to where I can place a spanner on it.
(The ability to keep the worm still and worm/worm gear hard against each other, etc is possible).
The worm will be a reuseable tool and can be made to a good quality.
The worm (tool) will have a small handle to quickly turn the worm to quickly take up slack.
And then I can add a bar or spanner to the shaft to give leverage to tighten off to my 200 N.m.
My question is: How much of my 200 N.m will be lost through all the worm stuff?
Will the teeth survive (mild steel)?
Will I be able to tighten up my nut? Thanks. ROger.
Named this WORK because I don't know if a am talking about Force or Torque !
I am trying to do up a M20 nut on a shaft - would like to tighten to say 200 N.m which I can do with my scawny arms and a 400mm long spanner.
BUT the situation doesn't allow for me to actually place the spanner on the nut. I have to somehow tighten it when perpendicular to the line of the shaft - approx 75mm away.
I plan to machine the nuts so they look like a worm gear (these are mass produced via CNC and so should be of reasonable quality). I will then
use a worm sitting on the nut with a shaft out to where I can place a spanner on it.
(The ability to keep the worm still and worm/worm gear hard against each other, etc is possible).
The worm will be a reuseable tool and can be made to a good quality.
The worm (tool) will have a small handle to quickly turn the worm to quickly take up slack.
And then I can add a bar or spanner to the shaft to give leverage to tighten off to my 200 N.m.
My question is: How much of my 200 N.m will be lost through all the worm stuff?
Will the teeth survive (mild steel)?
Will I be able to tighten up my nut? Thanks. ROger.