Festo KD-3/8-S151777 Coupling sleeve connection

The coupling sleeve connection, also known as sleeve joint, shaft coupling, or pipe coupling, from Festo with type number KD-3/8-S151777 is a mechanical connecting element for the secure coupling of two shafts or pipes for seamless power or fluid transmission. It has the dimensions 3 x 3 x 6 cm and weighs 0.16 kg. By sliding a precision-machined sleeve over the connecting ends and locking it in place – often using keys, splines, or press-fits – it creates a rigid or semi-flexible bridge that maintains precise alignment under high rotational loads. Coupling sleeves find typical applications in industrial drive technology to ensure torque transmission between motor and working machine, as well as in hydraulic and pneumatic piping systems for the reliable connection of fluid lines under pressure.

A coupling sleeve connection (Muffenverbindung) is a heavy-duty mechanical joint used to securely link two shafts or pipes together for seamless power or fluid transmission. By sliding a precision-machined sleeve over the connecting ends and locking it in place—often using keys, splines, or press-fits—it creates a rigid or semi-flexible bridge that maintains perfect alignment under heavy rotational loads.