Anti Rotation in Nut with low torque to start with
Anti Rotation in Nut with low torque to start with
(OP)
Hi,
i'm hoping to get a bit of assistance with stopping a nut from coming un-done if possible.
I have an application using a load cell which is being inserted into metal rod, and then pulled under tension. The load cell is inserted into a hole drilled in the rod and screwed in at the bottom end (loosely). The load cell has an external thread on the other end, which then has a nut placed on it and screwed down 'tight'.
my problem is that I cannot apply large amounts of torque to the load cell as it starts changing the output. But I also need it tight enough so it cannot come undone.
At the moment I have a nyloc nut on the thread (m20x1.5), I have tried using Nordlock washers but couldn't tighten the load cell up enough to get them to work.
the problem is I cannot measure how tight I am doing them up at the moment as I do not have a method of doing so.
But does anybody know of a good method of stopping a nut from coming undone when it isn't torqued up high to start with?
I cannot post drawings/images as its commercially sensitive.
thanks,
i'm hoping to get a bit of assistance with stopping a nut from coming un-done if possible.
I have an application using a load cell which is being inserted into metal rod, and then pulled under tension. The load cell is inserted into a hole drilled in the rod and screwed in at the bottom end (loosely). The load cell has an external thread on the other end, which then has a nut placed on it and screwed down 'tight'.
my problem is that I cannot apply large amounts of torque to the load cell as it starts changing the output. But I also need it tight enough so it cannot come undone.
At the moment I have a nyloc nut on the thread (m20x1.5), I have tried using Nordlock washers but couldn't tighten the load cell up enough to get them to work.
the problem is I cannot measure how tight I am doing them up at the moment as I do not have a method of doing so.
But does anybody know of a good method of stopping a nut from coming undone when it isn't torqued up high to start with?
I cannot post drawings/images as its commercially sensitive.
thanks,





RE: Anti Rotation in Nut with low torque to start with
RE: Anti Rotation in Nut with low torque to start with
RE: Anti Rotation in Nut with low torque to start with
RE: Anti Rotation in Nut with low torque to start with
RE: Anti Rotation in Nut with low torque to start with
RE: Anti Rotation in Nut with low torque to start with
RE: Anti Rotation in Nut with low torque to start with
RE: Anti Rotation in Nut with low torque to start with
Adding onto byrdj's post, what about an internally threaded clamp on shaft collar? I see some available from McMaster Carr but they only carry sizes up to M16 x 2. That would allow good clamping force without damaging the threads.
Kyle
RE: Anti Rotation in Nut with low torque to start with
RE: Anti Rotation in Nut with low torque to start with
http://www.whittet-higgins.com/part.php?series_id=...
RE: Anti Rotation in Nut with low torque to start with