How many ball bearings inside shimano MF-HG20 freewheel top and bottom? help me fix the bearings in my freewheel. I need to know the number of ball bearings top and bottom in my shimano mf-hg20 freewheel, and what size are they?
According to http://www.bikepro.com/products/freewheels/shimfw.html:


  There are thirty-eight 3.0mm inner steel ball bearings used in the inner bearing assembly