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Elecon
Bucket wheel planetary gear units are available in various sizes ranging
from 25 to 375 kw and reduction ratio ranging from 140 to 480.
These gear units are especially designed for bucket
wheel drive of stacker-reclaimer machines.
The gear unit consists of Four to Five reduction stages
comprising of bevel, helical and planetary being a last pair in the
system.
The gear units are available in hollow shaft design
with Shrink Disc and have a integral drive frame for mounting electric
motor and brake, with necessary fork for fixing the torque arm.
The sun, planet and helical wheels are case hardened
and ground to quality 6 as per DIN 3961-63. The annulus is made up of
high tensile alloy steel, heat treated or nitrided depending upon power
requirement. The spiral bevel gears having cyclopalloid tooth from are
case hardened and lapped in pairs so as to ensure optimum tooth contact
pattern during assembly.
The casing is of welded construction mainly in two
parts made out of Fe 410 WA IS 2062. The bearing bores are machined
with high degree of accuracy on CNC machines.
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