Need to reduce speed and increase torque for a motor on your CNC machine, conveyor, or other machinery? This is an NMRV040 size worm gearbox. It's a 90-degree right-angle reducer, meaning the input and output shafts are perpendicular.
The housing is aluminum alloy, lightweight and good for heat dissipation. The worm gear is bronze and the worm shaft is steel for durability. This listing is for a specific configuration: a 14mm diameter input shaft (where your motor connects) and a circular flange output (no output shaft – you bolt your driven pulley or coupling directly to the flange).
You MUST specify the gear ratio you need when ordering – choices from 5:1 up to 100:1. A higher ratio means more speed reduction and more torque increase. They're efficient, run quietly, and have a self-locking feature (the output can't back-drive the input, which is great for holding position).
Commonly used with stepper or servo motors on CNC routers, lathes, indexing tables, or packaging equipment. Make sure your motor shaft size matches the input bore (14mm in this listing). A versatile, compact power transmission component.
