Second Generation Gearboxes


Crouzet North America has introduced the new GDR1 and GDR2 Gearbox Series featuring quiet operation, versatile mounting and high torque.  The new gearbox line is suitable for a variety of medical, commercial and industrial automation applications where smooth performance and continuous duty capability are required.

The GDR1 and GDR2 Gearboxes feature gear ratios from 25:1 up to 650:1, continuous torques up to 6 Nm, and speeds ranging from 4 to 100 rpm.  Heavy-duty metal housing provides optimum durability and robust operation. Frame sizes measure 64.1 mm (2.52”) wide x 81.6 mm (3.21”) long, with thicknesses of 65mm (2.56”) for the GDR2 and 35mm (1.38”) for the GDR1.  The new series is designed with several mounting holes and additional mounting plates for easy adaptability and mounting.

The new gearboxes interface with Crouzet’s comprehensive line of highly engineered and highly tooled DC brush, DC Brushless and AC Asynchronous motors.  DC Brush motors are available with 12, 24 and 48-96 volt windings while DC Brushless motors feature 9-56 volt windings.  AC Asynchronous motors are available in up to 40 watts with winding options from 24, 115 and 220 volts at 50 or 60 Hz.   Crouzet’s Custom Adaptation Center can customize products to meet specific application requirements, such as adding custom shafts or connectors. 

Gearboxes can be supplied with flying leads, cables and connectors to suit individual requirements and are RoHS compliant.  DC motors can also be supplied with encoders and EMI filters.

“Crouzet’s new GDR1 and GDR2 provide an excellent value for a midrange gear motor,” says Jim McNamara, Crouzet Application Engineer.  “Customers are finding that the new gearboxes provide a quieter and smoother performance than others on the market,” he adds.  “With this product addition, Crouzet has increased our spur gear box torque range by 20%.”

Crouzet’s new GDR1 and GDR2 Gearboxes are available in production quantities from $70.00 each.  Delivery is
eight weeks.


  • gear ratios from 25:1 up to 650:1
  • Frame sizes measure 64.1 mm (2.52”) wide x 81.6 mm (3.21”) long
  • can be supplied with flying leads, cables and connectors
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