The KK-SEW 722077 Motor Pulley (Friction Wheel) is a precision replacement component designed for compatible Elna sewing machines, including the Green Series, Plana, and Transforma models. This pulley transfers power from the motor to the main drive shaft, ensuring smooth rotation and consistent sewing performance. Manufactured from durable, wear-resistant materials, it helps restore proper speed control and reduces vibration caused by worn or damaged original pulleys. Designed as a direct replacement for part number 722077, installation is straightforward and ideal for home sewing repairs, maintenance, and professional servicing.