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Brevini planetary gear units, with rotating outer casing, are designed
to be fitted into the winch drum: the PWD series for drive applications
from 3 to 12 tons and the SLW-SCW series for applications exceeding
12 tons.
These winch drives have two flanges close together: one is bolted
to the fixed winch frame and the other is bolted to the drum, thereby
serving as its first support.
The drum and winch frame come in any shape and size: the only engineering
restriction is the spigot on the flange coupling when fitted. The
winch drives are attached to the drum with bolts inserted from the
motor side to permit easy, immediate access to filling, level and
drain plugs.
Thanks to the caterpillar seals, all units are protected against
adverse environments and can be treated against sea corrosion with
an epoxy paint coating.
Through this solution, Brevini Riduttori provides manufacturers
with a standard product that can be adapted to suit specific sizes,
which means lighter, more compact winches can be made.
PWD and SLW-SCW series performance has been rated in conformity
with FEM M5 standards, with an output speed of 15 rpm, which are
the most widely accepted standards on the market for self-propelled
and onboard cranes.
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