The RGK series of Rolling Ring Drives are the latest generation of high-tech plastic bodied traversal units. Designed and built to be cost effective, their durability upholds proudly the brand of quality that Uhing has built over the decades.

RGK Rolling Eing Drives look to remove the stigma that metal is better. They are friction drives which convert the constant rotation of a plain round shaft into reciprocating motion. A unique technology first invented by Uhing from Germany, widely used in the Wire and Cable Winding industry.

They operate like nuts on a threaded bar, however the pitch both left and right-hand is capable of fine adjustment or set to zero.

This effect is achieved by using ball bearing based Rolling Rings which are designed to pivot about the shaft, their specially crowned running surfaces being pressed against the shaft as it rotates. High quality product made in Germany by Uhing.

Main advantages of the Uhing Rolling Ring Principle:

  • automatic reciprocating motion*
  • variable adjustment of traverse speed up to 4.2 m/sec max, also different from both directions *
  • variable adjustment of traverse length
  • high dynamics at the reversal points
  • low operating costs

*at constant speed and direction of shaft rotation

Model Number For use with shaft dia. (mm) Side Thrust (N) Max. Pitch Per Rev. (mm) Weight (kg)
KI3-15-6MCR 15 30 6.2 0.28
RGK3-15-0MCRF 15 90 8.2 0.53
RGK3-20-1MCRF 20 130 12.2 0.90

Indicate the model number of the Rolling Ring Drives in the above table.

Each model represents only one Traversal Drive, with no shaft, bracket and no motor.

*It is not necessary to decide on the ‘Direction of Shaft Rotation’ as the RGK runs in either direction*

An alternative is the ARGK sub-assembly, by adding an ‘A’ in front of the model number, it indicates your would like the configuration as per image below.

Shaft and bracket included, motor is optional.

The following fields are required for us to quote an ARGK:

  • RGK Rolling Ring Drive model number: refer to specs table
  • Maximum desired traverse distance: in mm
  • Position of shaft extension: Left or Right
  • Length of shaft extension: in mm
  • Direction of shaft rotation: Left or Right
  • Motor (optional): your specs

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