Linear Actuators with Special Drive Chain Design
Mclennan, the motion control component supplier and systems integrator has signed a distribution agreement with the USA-based electric linear actuator, roller screw and grooved roller bearing designer and manufacturer Creative Motion Control (CMC). The new range also includes the CPD series of high-force linear actuators, which combine CMC’s precision roller screw and patented grooved roller bearing components.
CMC’s CPD series linear actuators feature an inline or parallel (wrap around) motor mounting geometry that is compatible with virtually any manufacturer’s servo or stepper motors. The maximum standard product size, the CPD-1000, has a square section size of around 254 mm x 254 mm and a standard stroke length from 100 mm to almost 93 m, and can produce a maximum continuous force of 1112 kN (motor dependant). The smallest standard size, the CPD-250, with a 63.5 mm square section produces 30 kN. These specifications hold true with repeatability of around 0.02 mm and maximum actuator backlash of 0.075 mm.
These specifications are directly due to the drive chain design that utilises CMC’s roller screw and patented grooved roller bearing components. The IP67 rated actuators also feature CMC designed and manufactured planetary gearboxes to suit application load and speed requirements – ensuring positioning precision is maximised rather than use spur gears or belt drive reduction mechanics. A wide choice of mechanical interfacing includes clevis pin, foot, flange or trunnion mounts, threaded rod ends etc. The CPD series is also available with a oil lubrication system yieldingthat makes the actuator maintenance-free for the life of the unit for most applications.