Worm boxes now integrate torque limiter

Worm boxes with a torque limiting device which can be adjusted externally have been added to the Brown Pestell range.

Easily adjusted by means of a nut, the speed reduction unit can stop rotation of the low speed shaft whenever the stall torque exceeds the calibrated value of the integral torque limiter which protects both the transmission components and the machine operator.

Comprising a symmetrical cone on the output shaft acting against a hollow cone on the worm wheel, the torque limiter is protected from wear and rusting, making constant adjustment throughout the life of the gearbox unnecessary.