RV Series
Low backlash with large reductions
The RV series serves as the foundation of the entire Nabtesco product range. RV gears are components sets without integrated angular ball bearings. Due to the external bearing, they are very compact and are distinguished by their high torsional rigidity. The customer is free to choose the type of output bearing.
The power transmission takes place through rollers. In doing so, the gear has a high degree of efficiency, a long service life and extremely low backlash. The nearly symmetrical gear construction and the roller bearing support of all shafts guarantee a constant operating behaviour over the entire service life. In addition, it enables momentary load peaks of up to five times the indicated rated torque, which could arise in emergency stop situations, for example.
High precision positioning
The transmission error describes the angular transmission precision between the input and output shaft. The adjacent diagram shows the outstanding positioning precision of an RV gear.
Backlash and lost motion less than 1 arc min
Measurement process: The input is fixed. The output shaft is loaded with the rated torque in both directions. The hysteresis loss is the distance delta ΓΈ between the upper and lower charactics at zero load (dead point).
