Roller bearings and high-tensile Type 4340 steel shaft help Ultimate Model E1/E2 handle radial load of crusher, chipper, or other belt-driven machine. Inverter-rated motor works with any drive at any distance without filters, and supports multiple starting configurations. Frame sizes 405T-449T mount horizontally or vertically, with shaft down. Shaft slingers on either end prolong life, as do Class F and Class H parts, which exceed temperature rating of standard insulating systems by 5°C. Steel or cast iron unit boasts high starting torque, adhering to NEMA C design while tolerating inrush currents specified by NEMA B. Model E1 meets EPAct efficiency requirements; Model E2 helps save energy.