Amacoil-Uhing RG3 linear drives now have an extra bearing
option to double the axial thrust capacity of the drive unit without
significantly increasing the length of the drive box. Nine Amacoil-Uhing RG3
sizes 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 when
the fourth bearing is added. This means that for these sizes travel potential
for the RG4 model is slightly less than it is for the RG3 drive. The
application must permit the slightly reduced travel if the RG4 drive is
selected. For sizes RG350, -60 and -80 the drive boxes for the RG3 and RG4
models have identical dimensions and travel capacities.
The extra
bearing doubles the thrust by increasing the number of bearing-to-shaft contact
points. In RG3 models the center bearing makes point contact with the drive
shaft on two points which gives the bearing maximum side thrust. The two
outside bearings in the RG3 drive contact the shaft only at one point which
results in half thrust for each bearing. When the fourth bearing is added two
more shaft contact points are established thereby doubling the thrust of the
drive unit.
Amacoil-Uhing
RG linear drives are used in equipment requiring a reciprocating linear motion
component such as material handling systems, winding machines, spraying
assemblies, converting equipment and metrology systems.
