Self-locking

With regenerative torques on helical-worm gear units, the efficiency η' = 2 - 1/η applies, which is significantly less favorable than the forward efficiency η. The helical-worm gear unit is statically self-locking if the forward efficiency is η ≤ 0.5. If the braking effect of self-locking is to be used technically, please contact SEW-EURODRIVE.

INFORMATION

Note that the self-locking effect of helical-worm gear units is not permitted as the sole safety function for hoists.