Keywords
Citation
(1998), "New linear actuators integrate a motor, roller screw and encoder/resolver into a servo-size package", Assembly Automation, Vol. 18 No. 4. https://doi.org/10.1108/aa.1998.03318daf.007
Publisher
:Emerald Group Publishing Limited
Copyright © 1998, MCB UP Limited
New linear actuators integrate a motor, roller screw and encoder/resolver into a servo-size package
New linear actuators integrate a motor, roller screw and encoder/resolver into a servo-size package
Keywords Actuators
The integrated design of INMOCO's new GS series of linear actuators combines a brushless servo motor, an inverted roller screw and an encoder/resolver feedback source into a compact package the same size as a typical brushless motor (see Plate 4).
Plate 4 INMOCO's new linear actuators
integrate a motor, roller screw and encoder/resolver into a servo-size package
The GS series of actuators offer performance far exceeding that of other linear screw actuators. They provide continuous thrust ratings from 45 to 3,636kgs and speeds to over 1m/s. The roller screw mechanism provides lead accuracy of 25µm/300mm and zero backlash units are available.
The patented design of the GS series actuators employs an inverted roller screw mechanism to convert the rotary motion of the brushless motor into high-speed, high-thrust linear motion. The large contact area of the roller screw allows high force characteristics while guaranteeing long life 15 times the life of comparably sized ball screws is common even in the most demanding repetitive applications. In addition, the planetary design of the roller screw allows it to be accelerated and rotated faster (up to 5,000rpm) than comparably sized ball screws.
The integrated construction of the GS Series actuators guarantees simplified start-ups as the end-user engineering associated with integrating motors, geared reducers, lead screws and belts, etc., is eliminated. Operation in contaminated environments is not a problem as the IP65 rated, sealed design (IP67 on request) retains lubricants and excludes contaminants.
The GS actuators are available in a wide variety of stroke lengths, sizes, speeds and mounting configurations. INMOCO can also supply custom actuators to fit special applications.
The capabilities of the GS range are extended by a wide range of optional features including: internal end switches, electric brakes, linear positioning sensors, backlash-free followers and multiple mounting and rod end configurations.
For further information contact: David Cole, Intelligent Motion Control Ltd, 4, Brunel Close, Drayton Fields, Daventry NN11 5RB, UK. Tel: +44 (0) 1327 300320 Fax: +44 (0) 1327 300319. E-mail: DavidC@inmoco.co.uk