Nidec Industrial Solutions

Inline Cycloidal Gearboxes

ER 3000 Series variants, Circulute product family

The Circulute 3000 and our related products that utilize cycloidal gearing technology deliver the most robust solution in the most compact footprint. The main power train is comprised of an eccentric roller bearing that drives a wheel around a set of internal pins, keeping the reduction high and the rotational inertia low. The wheel incorporates a curved tooth profile instead of the more traditional involute tooth profile, which removes shear forces at any point of contact. This design introduces compression forces, instead of those shear forces that would exist with an involute gear mesh. That provides a number of performance benefits such as high shock load capacity (>500% of rating), minimal friction and wear, lower mechanical service factors, among many others. The cycloidal design also has a large output shaft bearing span, which provides exceptional overhung load capabilities without requiring any additional expensive components.