Haydon Kerk Motion Solutions (Waterbury, CT) offers the Kerk® RGS/RGW linear rail platform that includes a 180° folded- over motorized design for motion applications where space is at a premium. The rail contains all the components needed for a complete motion subassembly, including the stepper motor, belt and pulley, precision lead screw, bearing supports, and rail with load carriage. The rail also contains the capability of mounting sensors within the integrated dovetail grooves. The standard drive ratios available from the motor to the screw are 2:1, 1:1, and 1:2, using aluminum pulleys and a fiberglass-reinforced neoprene timing belt.

Screw leads range from 0.050 in/rev to 1.2 in/rev. For high-speed applications, a 1:2 pulley ratio and a 1.2 in/rev lead screw provides a maximum speed of over 7 in/s. The rails feature wear-compensating, anti-backlash driven carriages. The splined aluminum guide rail and 303 stainless steel lead screw are coated using Kerkote® TFE coating. Maximum load capability of the RGS is 35 pounds in the “Z” direction and 35 pounds in the hanging/gantry load position. Maximum roll and yaw moment is 3.25 in-lbs, and maximum pitch moment is 5.66 in-lbs.

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