Linear Motion Systems

Linear Motion Systems 16

Track Profiles

The Paletti actuator system 16 is based on several types of track profiles and carriages. The carriages run on 16mm diameter steel rails that are pressed into the track profiles. Specific loading, speeds and acceleration are catered to by using a combination of drive units, Timing Belt widths and carriage lengths that meet the needs of most designers.



The carriages are made from one extruded profile and come in several standard sizes. Specific carriages lengths of up to 2300mm long are manufactured to meet the needs of each specific application. For high load systems the carriages are manufactured with additional rollers or as a combination of shaped and flat rollers. Should rollers need to be changed standard carriages are made with service pockets so the rollers can be serviced or replaced with the carriage in place. The rollers are adjusted via two excentric axles and fixed using a double locking mechanism of a large locknut retained in position by a grub screw. Lubrication of the rollers and guide rails is by a wiper and lubrication system with felt pads that retain the lubricant. For high dynamic loads we recommend the use of our external lubricant. For carriages with short strokes lubrication of the rollers may not be guaranteed and in such cases service pockets with internal felt pads to wipe and lubricate the system are required. The timing belt is attached to the carriage by internal or external timing belt tensioners.


Pulley Assemblies

The pulley assemblies are manufactured for timing belts AT10/22 and AT10/50. The motor is attached using standard motor attachment flange plates or plates to suit customer requirements. The bore of the pulley assembly is either plain or comes with a shrunk steel insert to suit customer drive requirements. Motors can be either direct drive or via flexible coup­lings, timing belt gearing can also be provided.


Omega Drives

Linear Motion Systems 16 with omega drive

The omega drive is manufactured for timing belts AT10/22 and AT10/50. The carriage becomes the fixed part and motion is transfered to the profile axis. Standard ranges of omega drives are either attached to carriages or stand-alone for special customer applications.

Omega Drives are manufactured in five basic variants. Their purpose is to replace the drive unit on the fixed part of the axis. The timing belt is tensioned via external timing belt tensioners at each end of the profile axis. Omega drives are normally used with integral carriages.

C-Track with omega drive

The Omega drive is manufactured for the Paletti C80/100 linear actuator system. The drive is transferred from the end of the actuator to the carriage which is now fixed, thereby transferring movement to the track profile.


Screw Drives

Trapezoidal / Ball Screw Transmission

Linear actuator system 16 using track profile 80x80, open have either trapezoidal or recirculating ball screw transmissions. Screw diameters and pitches of 20x20 or 20x5 are standard. Customer specific spindles with strengthened bearings are available on request.


Internally Guided Actuator 120x120

Ball Screw With Recirculating Steel Ball Guide Rail

The actuator 120x120 is guided by means of an internal 25mm recirculating steel ball guide rail. The unit is driven via ball screw and is maintenance free in operation. In order to guard the internal steel guide rail against contaminants, Paletti incorporates a textile cover strip in the actuator.

Recirculating Ball Slide

The Paletti recirculating ball slide system uses an aluminium guidance rail and recirculating ball carriage that houses plastic ball ­bearings. The ball bearings go around in four guidance bores and are returned back through the carriage by plastic end caps attached to each end of the carriage.


Glider Slide

The Paletti glider slide guidance system uses an aluminium guidance rail and carriage that has four open round channels. Each channel holds up to four small plastic rods. The rods are retained by plastic end caps attached to each end of the carriage.