05-07-2012, 12:45 PM
Dan,
Yours is a R8 spindle mine is MT3 spindle.
When using MT3 and the like the draw bar should just be "nipped" up, the taper should hold it.
R8 need to be held in reasonably tight, a lot tighter than the MT3 I have.
If my draw bar comes loose most times nothing will happen except I will hear it rattling.
If the draw bar on your R8 comes loose there is every chance the spindle R8 bore will be damaged.
The extra nut on your draw bar acts as a locking nut to prevent the draw bar coming loose.
I think your draw bar is best how it is.
May be someone else would like to comment.
DaveH
Yours is a R8 spindle mine is MT3 spindle.
When using MT3 and the like the draw bar should just be "nipped" up, the taper should hold it.
R8 need to be held in reasonably tight, a lot tighter than the MT3 I have.
If my draw bar comes loose most times nothing will happen except I will hear it rattling.
If the draw bar on your R8 comes loose there is every chance the spindle R8 bore will be damaged.
The extra nut on your draw bar acts as a locking nut to prevent the draw bar coming loose.
I think your draw bar is best how it is.
May be someone else would like to comment.
DaveH