MFA 950D SERIES SINGLE RATIO METAL GEARBOX 950D2.51 (4.5v - 15v) WITH RE 385 MOTOR. RATIO 2.5:1Designed for heavy duty industrial and model applications this robust unit boasts a powerful high quality, five pole motor with sintered bronze bearings. The metal gearbox incorporates sleeved bearings, enabling the high torque transfer from the motor to be transmitted through the gearbox. The unit is mounted on a 1mm thick plated steel bracket. 24 volt versions are available for this range of motor gearboxes. Performance data is similar to 12 volt