Compact, precise linear motion in a readytouse stepping package. This assembly integrates an 11.5 mm linear stroke with a precision 5 mm planetary gearbox and a 2phase, 4wire stepper motor (stepping electronic starter). It is designed for applications that need small, repeatable linear travel and accurate position control. Key benefits Precise shorttravel linear actuation: 11.5 mm stroke provides controlled, repeatable motion where small displacement is required. Mechanical advantage and accuracy: the integrated 5 mm precision planetary gearbox reduces step resolution and increases torque for smoother, more reliable motion. Standard stepper interface: 2phase, 4wire configuration works with common stepper drivers and controllers for straightforward integration. Compact, integrated solution: combines gearbox and stepper motor into a single unit to simplify mounting and reduce assembly time. Key attributes Motion type: linear actuator with 11.5 mm stroke. Gearbox: 5 mm precision planetary gearbox (integrated). Motor type: 2phase, 4wire stepping motor (stepping electronic starter). Control compatibility: designed for use with standard 2phase stepper controllers and drivers compatible with 4wire steppers. Functionality: fine incremental motion and position holding typical of stepper systems, enhanced by the planetary gearbox. How it solves problems Replaces larger, more complex linear systems when only a short stroke is needed, saving space and simplifying design. Increases torque and positional resolution without adding external geartrain components. Enables precise, repeatable positioning in compact mechanisms using commonly available stepper controllers. Typical applications Small robotics and automation: precise endeffector adjustments, microgrippers, or actuator stages where controlled short travel is required. Optical and imaging devices: fine focus or lens positioning where compact, repeatable linear movement is critical. Instrumentation and smart valves: small valve actuation or sensor positioning in laboratory equipment, medical devices, or industrial controllers. Integration notes Use a stepper driver compatible with 2phase, 4wire motors and appropriate current/voltage settings for reliable operation. Mount and secure the integrated unit as a complete assembly; the builtin planetary gearbox removes the need for additional external gearing. For positioning performance, consider using microstepping with a suitable controller to take advantage of the gearbox's improved resolution. What to expect Compact form factor delivering 11.5 mm of controlled linear travel. Improved torque and step resolution from the 5 mm precision planetary gearbox. Direct compatibility with standard 2phase, 4wire stepper control systems for quick setup and reliable operation. If your project needs a small, precise, and integrated linear motion solution with standard stepper compatibility, this 11.5 mm stroke linear actuator with 5 mm precision planetary gearbox and 2phase 4wire stepping electronic starter provides a compact, readytouse option.