Chinese grinder nut size?

[Bill DeShivs]

Does anyone know what size/thread the 1/2" shaft Chinese bench grinders use? Somehow I lost one. This little grinder runs very true, and I use it as a buffer.

 

[drewfacehotm]

if its metric it might be a 12x1.5mm , 1/2-13 or 1/2-20 if its standard.

 

[Dan Calvin]

My guess would be 13 x 1.25 mm . The right wheel should be right hand threads and the left should be left hand threads.

 

[Bill DeShivs]

Thanks, guys!