Varvel's RG series of reduced-backlash planetary speed reducers is characterized by modularity, flexibility and innovation. Thanks to a kit module design, that makes them available for all speed reducer ranges, these reducers are easy to set up. They are available in 4 sizes with reduction ratios from 3:1 to 100:1 and nominal output torque from 12 to 220 Nm. These reducers have a tempered all-steel body and operate noiselessness with less than 70 or 75 db(A) according to the model. They have an angular backlash lower than 8' minutes of arc for one stage units and 12' for two stage units.