Linear Drives with an Extra Bearing Option

Amacoil-Uhing RG3 linear drives now have an extra bearingoption to double the axial thrust capacity of the drive unit withoutsignificantly increasing the length of the drive box. Nine Amacoil-Uhing RG3sizes are available with the 4-ring option. For Uhing models RG315, -20, -22,-30 and -40 there is a slight difference in the length of the drive box whenthe fourth bearing is added. This means that for these sizes travel potentialfor the RG4 model is slightly less than it is for the RG3 drive. Theapplication must permit the slightly reduced travel if the RG4 drive isselected. For sizes RG350, -60 and -80 the drive boxes for the RG3 and RG4models have identical dimensions and travel capacities.

The extrabearing doubles the thrust by increasing the number of bearing-to-shaft contactpoints. In RG3 models the center bearing makes point contact with the driveshaft on two points which gives the bearing maximum side thrust. The twooutside bearings in the RG3 drive contact the shaft only at one point whichresults in half thrust for each bearing. When the fourth bearing is added twomore shaft contact points are established thereby doubling the thrust of thedrive unit.

Amacoil-UhingRG linear drives are used in equipment requiring a reciprocating linear motioncomponent such as material handling systems, winding machines, sprayingassemblies, converting equipment and metrology systems.

Linear Drives with an Extra Bearing Option