A58SW555 Geared DC Electronic Starter — Worm Gearbox, Torque, D Shaft, Reversed SelfLock (Package A, 12V 10RPM) Why choose this motor Reliable torque output with a worm gearbox that resists backdriving: holds position when power is removed, reducing the need for separate brakes or ratchets. Compact 555sized DC motor with integrated gearbox delivers a practical solution for lowspeed, torque applications at 12 V. Reversed selflock configuration and Dshaped output shaft simplify installation and coupling while providing secure, repeatable motion control. Key benefits Selflocking worm gear reduces drift and maintains load position without continuous power. torque at low RPM enables direct drive of gates, latches, valves or robotic joints without complex transmissions. Dshaped shaft provides positive mechanical coupling for standard couplers and couplings, reducing slippage. Wide gearbox/ration options across the model family (12–470 RPM) allow selection of speed vs. torque for the task; Package A is configured for 10 RPM at 12 V for very lowspeed, holdingtorque needs. Main specifications (as labeled) Model: A58SW555 Motor type: Geared DC electronic starter with worm gearbox Voltage: 12 V nominal Speed family: 12–470 RPM (depending on gearbox/ratio selection) Package A output: approx. 10 RPM at 12 V Shaft: Dshaped output shaft Feature: torque, reversed selflock worm gearbox Functionality and compatibility Designed to operate from a 12 V DC supply and integrate with standard DC motor drivers, switches, or starter circuits. Dshaft fits common couplers and adapters used in small machinery, robotics, and mechanical assemblies. The worm gearbox is compatible with applications that require holding torque or prevention of backdriving under external load. Practical use cases Automatic latch or door actuator: Use Package A (10 RPM at 12 V) for slow, controlled engagement and reliable selflocking to keep doors or latches closed without continuous power. Robotic joints or platform tilt: Provide precise lowspeed motion and holding torque for positioning arms, camera mounts, or pan/tilt mechanisms where loadhold is required. Small gate or valve drives: Drive valves, dampers, or small gates that need torque to overcome friction and to remain in position when the motor is off. Installation and operation notes Ensure a stable 12 V DC source suitable for the motor's starting and running current (use an appropriate motor driver or starter relay). Mount gearbox to a rigid surface to prevent loading on bearings; align Dshaft coupling carefully to avoid side loads. For reversible motion or different rotation direction requirements, verify wiring or gearbox orientation consistent with the 'reversed' configuration of this unit. The worm gearbox provides strong selflocking characteristics; if backdriving is required, select a different gearbox type. What makes it unique Combines a common, serviceable 555 motor platform with a worm gearbox that is purposebuilt for holding loads and delivering torque at low speeds. Package A option delivers an especially low output speed (10 RPM at 12 V), ideal for applications that need slow, steady motion plus selflocking security. Compatibility checklist 12 V DC systems Applications requiring selflocking worm gear behavior Mechanical couplings that accept a Dshaped shaft Projects needing low speed and torque (select appropriate gearbox/ratio within 12–470 RPM family; Package A for 10 RPM) If you need a compact, robust geared DC motor that resists backdriving and delivers dependable lowspeed torque for latches, actuators, or positioning systems, the A58SW555 with worm gearbox (Package A — 12 V, 10 RPM) is built to meet those needs.