At the heart of the BGS04 is a Haydon linear actuator driving a Kerk 303 stainless steel precision lead screw. The screw is coated with Black Ice TFE coating providing a permanent wear-resistant dry lubrication. The lead screw drives an anti-backlash nut embedded in a machined aluminum carriage mounted to a stainless steel ball rail. The result is a rigid, smooth operating motion system. Depending on the load requirements, the BGS04 linear rail is available with either the Size 11 (28 mm) double stack or Size 17 (42 mm) single stack hybrid linear actuator. When combined with a 200 step/rev stepper motor, linear positioning resolution is greatly enhanced to a range of 0.000125-in (0.003 mm) to 0.005-in (0.127 mm) per input pulse. Stroke length of the BGS04 is 1-in (25 mm) to 18-in (460 mm). By combining technologies into a single preassembled unit, Haydon Kerk Motion Solutions is able to improve system integration for the equipment OEM or end user. The overall cost for the customer also is lowered by offering a complete solution that eliminates the need for rotary-to-linear conversion resulting in simplified product development.