MR74 (7*4*2.5mm) SHIMANO\DAIWA original grip ball bearings, twist rod bearings, etc. change this size;
MR85 (8*5*2.5mm) ABU original pill bearing is changed to this size;
MR95 (9*5*3mm) changes to this size for most of the big gear shaft bottom bearings of fishing reel;
MR128 (12*8*3.5mm), most of the water droplets/drums have stable bearings on the large and small gear shafts to change to this size.