Chuck Lock Nut?

[Munty Scruntfundle]

Hi folks.

Having fitted my reverse switch, and as pointed out by people here, I really need to have a locking nut. Can anyone suggest a supplier of 1" 8tpi nuts? And or washers?

Many thanks.

 

[Phil Pascoe]

I doubt there's room on the spindle for a lock nut.

 

[Dalboy]

Hi folks.

Having fitted my reverse switch, and as pointed out by people here, I really need to have a locking nut. Can anyone suggest a supplier of 1" 8tpi nuts? And or washers?

Many thanks.

The locking device is normally a grub screw fitted on a collar which is part of the chuck. this may mean buying a new chuck with this facility on it.

 

[Trevanion]

A lock nut would really do nothing more than what already exists when the chuck is tightened against the registry face on the spindle. Adding a nut is only adding a new registry face and nothing more, if anything it’s probably more unsafe as there’s less threads engaging with the chuck.

As Dalboy said, the chuck itself needs a grub screw which engages on the bare spindle behind the threads, most are fitted with them already.

 

[CHJ]

The locking screw is located so that it engages in the rear thread relief groove just in front of the spindle locating register.