The SEW R57DRN100LS4 is a high-load-capacity helical AC gear motor compliant with European CE standards (50 Hz). Equipped with an IE3 high-efficiency four-pole motor, it delivers a rated power of 3 horsepower (approximately 2.2 kW) and is designed for continuous S1-100% operation.
Featuring a compact foot-mounted design, this model achieves an overall gear ratio of 18.60, precisely reducing the motor’s input speed of 1450 rpm to an output speed of 78 rpm. It generates an output torque of 2390 LB-in and, with a high service factor of 1.65, can reliably withstand an overhung load of 1040 Lb, making it ideal for heavy-duty and shock-load applications.
The motor maintains a stable efficiency range of 86.4%–87.5% under varying loads, offering excellent energy savings. Its 3020 traffic red finish and flexible terminal box and cable entry design simplify installation and maintenance. Widely used in material handling, heavy-duty automation lines, and light machinery, it is a reliable solution for industrial drive needs.