The present disclosure is concerned with a motion converter structured for converting a rotational motion provided by a motor shaft into a linear reciprocating motion of a drive shaft. The motion converter has a deformable unit, a mounting unit connected with the deformable unit, a coupling unit connected with the deformable unit, the coupling unit being structured to receive the drive shaft or the coupling unit comprising the drive shaft, a connector unit connected with the deformable unit, the connector unit comprising at least a first essentially U-shaped receiver being structured for receiving a first eccentric shaft element of the motor shaft and having a U-base and two U-legs together defining a first elongated hole having a length, a width and a height, and a first bracing element that connects the two U-legs of the first essentially U-shaped receiver on their free ends such that access into the first elongated hole across the width and the height of the first elongated hole is provided, preferably where the first bracing element is bar-shaped or U-shaped or O-shaped, and where the length is measured from an inner surface of the U-base to the free ends of the U-legs.