Rolling ring drive

The Uhing® rolling ring drive principle

Uhing® Rolling ring drives are friction drives which convert the constant rotary movement of a plain shaft into a traversing movement. They operate like nuts on a screw rod but have a pitch - either right-handed or left-handed - that can be precisely adjusted and can equal zero. This effect is achieved by using pivoted Uhing® rolling rings that are mounted on roller bearings and have a specially shaped running surface which is pressed against the rotating shaft. A roller lever capable of making contact with cams arranged along the stroke path makes it possible to implement even complicated patters of motion.

The main advantages of the Uhing® rolling ring principle are:

• highest possible efficiency due to the fact that the gear and the payload are completely supported by roller bearings
• automatic traversing movement
• variable traversing speeds ranging from 0 m/s to a maximum
  of 4.2 m/s; can also be separately set for the two directions with constant rotation of the shaft
• variable traversing width and traversing position
• high dynamics at the points of reversal
• can be released from the shaft
• low operating costs
• low maintenance requirements

Application examples for Uhing® rolling ring drives

In the wire and cable industries for winding and unwinding, traversing, and positioning

In automation for moving, measuring, testing, clocking, concatenating, positioning

In the food/packaging industries for cutting, separating, distributing, feeding, cleaning

Rollring ring drive pictures