Double tube linear units

Double tube linear units

The product group “Double Tube Linear Units” contains linear axes made of chrome-plated steel or bright stainless steel precision tubes.

If very high guide precision is required, the group also offers linear units of hard-chrome-plated or polished solid shafts.

The center spindle with ball bearings on both sides can be designed as a trapezoidal or fine thread lead screw or as a recirculating ball screw. The guide elements have either a sliding or roller guide.

Double tube linear units can be divided into three types, each available with single or double guide elements:

Linear units with one guide element: the guide element is moved along the guide tubes by the spindle thread.

Linear units with two opposing guide elements: two guide elements move symmetrically along the guide tubes due to different thread directions.

Linear units with two independent guide elements: two guide elements move independently along the guide tubes due to separate spindles.

Possible accessories for the double tube linear units include hand wheels in various designs, position indicators and clamping plates for spindle clamping. The accessories are matched to the nominal diameter of the linear units and are found in group 2D.

Double tube linear units are capable of receiving high forces and torques. Depending on the features, a variety of precision levels are possible, which can be flexibly adapted to many different areas of application in machine and system building, such as for height and format adjustment.