Motovario says the shape of its new
NMRV Power series worm and
helical worm gearboxes marks a break
from the traditional square look.

Units are said to offer an increase
in flexibility and mechanical
performance. A choice of input
couplings and flanges allows three
different motor sizes to be fitted to
the one gearbox. This enables
distributors and OEMs to reduce the
number of units they keep in stock.

Performance has been improved
by the use of new materials in the
worm wheel and the design of the
casing which permits a high level of
thermal exchange and torque. The
result, says Motovario, is more power
from the same size gearbox.

Efficiency and flexibility can be
further increased using a modular
helical pre-stage on the input.