Precision reducer promises long lifetime

Edited by the Engineeringtalk editorial team Mar 11, 2005

The Nabtesco Precision Reducer has a patented two-stage cycloidal design that provides large torque, high-ratio and significant shock-load capabilities with extreme precision and excellent quality.

The Nabtesco Precision Reducer, available from Servotechnic, consists of a patented two-stage cycloidal design that provides large torque, high-ratio and significant shock-load capabilities with extreme precision and excellent quality.

The RV uses rolling contact elements to reduce wear, extend life and lower backlash with the unique pin and gear structure of the cycloidal design providing higher shock resistance than traditional reducers and further reducing backlash.

The reducer also incorporates a set of large, internal angular support bearings that provide large moment capacities and negate the need for external support devices.

The virtually symmetrical gear design and the support of all shafts by roller bearings guarantee a constant performance during the lifetime and allow short time peak loads of up to five times the given rated torque (ie for emergency stops).

Integrated angular support bearings increase reducer rigidity as well as provide the reducer with the ability to support large external moments.

Thus eliminating the need for external support devices, reducing the number of components required and increasing reliability and reducing overall cost.

100% continuous contact of the cycloidal pin and gear teeth design provides high shock load capacity and very low backlash since forces are distributed throughout the reducer.

The patented two-stage reduction mechanism reduces vibration due to the lower speed rotation of the two cycloidal gears while the reduced input coupling sise lowers inertia.

A wide variety of ratios are possible by simply changing the first stage spur gear combinations.

The use of rolling contact elements throughout the reducer helps to provide an excellent starting efficiency; low wear with long life expectancy, and low backlash.

Typical applications for the RV gears include machine tools, robotics, antenna positioning and general automation.