Brush commutator spur dc gear motors with strong metal gears of straight type manufactured by milling machine process. Only the motor shaft gear pinion is made of bakelite for noise reduction purpose. The output shaft is made in hardened stainless steel and has a sleeve bearing output as standard. For electric noise suppression the dc motors have as standard and if available integral filters as either with varistor and / or capacitor. This is marked as a F in the part description. There are options for encoder assembly and special adaptations. All motors are produced under strict high quality production standards and are tested and inspected prior to delivery.