We don’t recommend it. Pitch is factory-set by inserting a series of poly-based pitch wedges between the rolling ring bearings inside the drive nut. The pitch wedges determine the unit’s pitch by holding the rolling ring bearing assembly at a precise angle relative to the drive shaft. Changing the pitch is an inexpensive (less than $60) process whereby the pitch wedges are switched out for a different set. No other components of the linear motion system need be changed as opposed to other types of linear motion systems where changing pitch can require the purchase of major new parts such as screws, gearboxes and clutches. The RS comes standard with a fixed pitch setting of 0.5 times the shaft diameter. (The model RS4-25, for example, runs on a 25 mm drive shaft and has a fixed pitch setting of 12.5 mm per shaft revolution.) Each RS drive is now also available with four other pitch settings – 0.1, 0.2, 0.3 and 0.4 times he shaft diameter.