Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
Mine is running needle rollers, as should the Dresda arm of yours.
Thats the problem Ken and all as if it pivots on the bolt without a collar or spacer to get trapped in the frame you cant do the bolt up tight without restricting swing arm movement and if you leave it loose enough for arm to move the holes in the frame wear. Have a box arm that is fitted with bushes that pivot on the bolt, its crap and useless unless i get them bored to fit a standard collar and narrowed enough for the collar to be trapped with clearance for arm.Thats what the phenolic thrusts in original arms and flanges on brass replacements are for.
Original is 14mm.