SPHERICAL BEARING FOR RIFLED MINE THROWER Russian patent published in 1997 - IPC

FIELD: supports for rifled mine throwers for transmission of torque to plate. SUBSTANCE: spherical bearing has chamber inside it with splined hole in front part. Side walls of spherical support are provided with longitudinal slots bounded by walls of splined hole at the top and by central spherical strip at the bottom. End of breech is received by hole of spherical bearing; cavity of spherical bearing is filled with steel balls. During shot, rifled barrel with breech recoils acting on balls which act in their turn on side walls of spherical bearing having slots pressing them to walls of plate seat. As a result, friction force moment is created which exceeds moment created by revolving mine. EFFECT: enhanced efficiency. 5 dwg