The Rulmeca Motorized Pulley is a highly efficient geared motor drive, which is hermetically sealed in a steel cylindrical shell. The shell, which is normally crowned to ensure belt tracking, is fitted with bearing housings incorporating precision bearings, double lipped oils seals and rotates on a pair of shafts. The motor stator is fixed to the shafts and the motor winding cables passes through one of the shafts, eliminating the need for slip rings and brushes. General description The squirrel cage induction motor, manufactured in steel laminate, is machined concentric to high tolerances and designed to give 200 % starting torque for 3 phase versions. The rotor pinion is coupled directly to the gearbox. The gearbox transmits torque to the shell through a geared rim and provides a highly efficient motor, with very little frictional losses. The Motorized Pulley is oil filled, which acts as a lubricant and coolant. Heat is dissipated through the shell and conveyor belt. All vital parts are CNC machined!
The Rulmeca Motorized Pulley is supplied as standard with:
• Machined mild steel crowned shell. • Electric motor manufactured in accordance with IEC 34-1 (EN60034-1), (VDE 0530). • Class F insulation according to IEC 34-1 (EN60034-1), (VDE 0530). • Most international voltages. • Standard voltages supplied with +/-10% tolerance in accordance with IEC 38. • Factory oil filled and tested. • Degree of protection IP66/67 (EN60034-5). • Motorized Pulleys are labelled in compliance with the Safety norm ANSI 535.4 and ISO 3864-2. Rulmeca Motorized Pulleys are manufactured according to the Council Directives of the European Communities. The CE-marking is according to Directive 2006/95/EC relating to electrical equipment and according to Directive 2004/108/EC relating to electrical magnetic compatibility and amendments.