Linear axes with lead screw drive

The lead screw drive is one element of the drive systems. The linear movement of the moving body is generated by a rotating lead screw and transmitted to the lead screw nut. So it is a rotary movement converted into a linear motion.

drylin® linear axes with lead screw drive are designed for positioning tasks of all kinds. The linear adjustment takes place via trapezoidal lead screws of different sizes or via high helix lead screws, which can be set in motion either manually or electrically. The max. travel speed is up to 1.6m/min, depending on thread and load. Stroke length is freely selectable for any linear drive system. A plain-bearing-mounted lead screw has a maximum stroke of 1,500mm, a ball-bearing-mounted one 1,000mm.

1. storage
High-quality bearings minimise friction values and also ensure uniform rotary movement. As a rule, roller bearings, ball bearings or plain bearings are used here. igus® uses plastic bearings and plastic nuts without lubrication for all linear rails with spindle drive.

2. shaft
linear axis with spindle drive can, for example, be equipped with cantilevered round shafts, but also fully supported with linear rails. With igus® you can choose from 3 different shaft materials, depending on the application: Aluminium, stainless steel or carbon.

3rd spindle
The spindle forms the actual centrepiece of the spindle axis. This rotates around its own axis and thus transmits the movement. It is a cylindrical component that is available in a variety of designs. At igus® you will find trapezoidal threads and high helix threads in numerous pitches.

4. base body
The base body of the linear axis with spindle drive holds the individual components together in a stable manner. This can also be made of different materials such as stainless steel, aluminium, zinc or plastic. We will be happy to work with you to find the right material for your application.

5. spindle pivot
The spindle pin helps to keep the spindle in a fixed and stable position. It ensures that the lead screw does not move sideways or wobble while rotating or moving linearly. It therefore plays a particularly important role in precision.

6. accessories
When the spindle axis is fully assembled, the matching accessories are of course still missing. Here users can choose between mechanical and electrical options. The classics here are the hand wheel, as shown in the example, but also suitable Electric motors.