Self-locking hand-crank worms and clutch-engage worm drives for fence, gate, and barrier machinery — built to hold position safely when power or the operator stops.
Fence, Gate & Barrier Machinery
Fence and gate machinery needs two things catalogue boxes often miss: a safe hold when the operator lets go, and a way to engage or free the drive for setup. Anand Gears builds manually operated self-locking worm gearboxes (high ratio, hand-crank input) and clutch / lever engage-disengage worm units for OEMs in this segment.
Product Types
High-ratio foot-mounted worm with hand-crank input. Self-locking holds the gate or fence mechanism when the handle is released — no separate brake for many designs.
Worm units (e.g. 25:1 class) with a side lever that couples or frees the drive for machine setup and emergency freewheeling.
Coupler, keyway-bored output, and clutch geometry integrated with the worm housing — used where motorised and manual modes share one gearbox.
Hollow input shaft clutch designs for compact motor interfaces, with special mounting legs when the OEM frame is non-standard.
Related: Worm Gearboxes · Custom & Special · Self-Locking Guide
FAQ
Higher worm ratios (for example 60:1–100:1) are more reliably self-locking, so the load stays put when the operator stops turning the handle.
Yes. Lever side and packaging envelope are set per machine. Provide a sketch showing free space around the housing.
We manufacture drop-in replacements matched to mounting and shafts from samples or drawings — without needing the original brand nameplate for the build.