Plastic strainwave gearing

“The strainwave gearing has the advantage that it has minimal backlash, ensuring precise adjustment with incredible smoothness,” says Robert Dumayne, dry-tech director, igus. “It is also very compact and has a high transmission torque ratio.” A typical application would be as the sixth axis of a robotic arm, that is, as a radial connection between arm and gripper.

The worm wheels for the new transmission ratios 1:30 and 1:70 of the robolink D worm gear also use iglidur materials. For these, igus offers a decoupled option of motor and joint. The two components are connected to each other by an aluminium profile – the result is better weight distribution on the axis, enabling heavier loads to be lifted.