
Typical reduction ratio of 41 for single stage 2roll S series and 161 for double stage 4roll D series crushers 1 or 2 motor drive options available for single stage crushers 1 2 or 4 motor drive options available for double stage crushers Double row spherical roller bearings used on all models 2 GA doubleroll particle crusher 7 3a Effect of roll clearance on percent of unbroken particles in roll crusher product 12 3b Effect of roll gap on particle average volumesurface diameter 13 4 Reference design fuel particle crusher 15 5 ACC adjustable gap doubleroll crusher 17 6 ORNL adjustable gap doubleroll crusher 18 7