Category Archives: Featured Products

Pulley and Belt Design

To minimize the possibility of the belt slipping and to reduce backlash a minimum of 6 contact teeth is recommended.  A smaller drive pulley allows higher torque and resolution.

Incorrect drive ratio can cause havoc:  stalling, overheating, motor failure, incorrect function and subsequent damage.

Allow Nordex to assist in your design.


A coupling, in simplest terms, is a device that connects different objects together. Couplings do much more than that,C_Index_image_red border however, in myriad applications in many industries. They connect so that the motion of one object can be transmitted to the other directly or differentially, and this can be done through electrical, hydraulic, or – in the case of Nordex – mechanical means.

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Internal Gears

Internal Gears provide the possibility of a compact design. They can provide higher contact and drive ratios at a shorter center distance.

A segment/partial internal gear can be used in applications such as a camera mount. To allow for axial movement this gear can be machined to function as a spline.


A coupling is used to connect two shafts together with the purpose of transmitting power. Couplings provide for misalignment, reduce transmission of shock loads, protect against overloads, alter vibration characteristics, connect driving and driven part, slips when overload occurs.

There are many different types of couplings to choose from depending on your application.

Lighter Gears

Lightening holes are holes that are added to components to lighten the weight. These can be made in several shapes: round, oval, rectangular, spokes. The holes are evenly spaced to facilitate balancing.

Other ways to lighten weight: alternate material, one piece construction ex. pulley/shaft.

Popular design in Robotics, Medical, Hand Tools, Drones.

Gear/Drive Trains

Gear teeth are designed to engage without slipping. Providing smooth rotation from one gear to the other.

The drive gear attaches to the drive mechanism. The driven gear is attached to the load shaft.

Intermediate gears in a sequence of gears may be idlers; used to change direction and speed of rotation.