General Description
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| The Superior Gear Co. reducer is a double-reduction worm gear
reducer contained in a single housing. It was designed
specifically for a boatlift application. The input
is a NEMA 56C to allow mounting a standard electric
motor directly onto the reducer. The output is a
hollow shaft design that is sized to accommodate
a standard 2-inch pipe. The connection to the pipe
utilizes the cross bolt identical to the current
Flat Plate design. This design provides maintenance-free
service without grease lubrication intervals or belt
drive adjustments. |
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Housing
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| The housing is a cast-aluminum for light weight
and corrosion resistance in salt water and humid
environments. The housing is designed to provide
separate lubrication reservoirs for the high-speed
and low-speed gear sets to ensure proper lubrication
without having to overfill. The housing is non-vented
to prevent buildup of condensation inside the reducer
in humid environments. |
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Gearing
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The high-speed gear set is a 5:1 for high efficiency.
It utilizes a production gear set from an industrial
product line designed to AGMA specifications. The worm
is made from a heat-treated alloy steel and meshes
with a bronze worm gear.
The low-speed gear set is a high-ratio (96:1) designed
to have an extremely low helix angle to prevent any
possibility of backdrifting. The worm is made from
heat-treated allow steel and meshes with a high-strength
cast-iron worm gear. The large center distance of the
low-speed gear set results in lower tooth loads for
a given output torque.
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Bearings
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| All shafts and gears are supported by deep grove
ball bearings to provide precision positioning and
high efficiency. The low-speed worm bearings are pre-lubricated
and shielded to ensure proper lubrication and contain
the lubricant in the high-speed cavity |
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Lubrication
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| The Superior Gear Co. reducer is factory filled with a high-quality
semi-fluid grease. This high-viscosity grease is capable
of handling the high shear stress inherent in worm
gear products. The semi-fluid grease greatly reduces
the potential for leakage. |
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Sealing
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| The Superior Gear Co. reducer utilizes spring-loaded duel-lip
oil seals. The dual-lip design helps protect the sealing
lip from outside contaminants and shaft corrosion.
The spring-loaded sealing lips are more than capable
of handling the small internal pressure that may result
from the temperature changes that occur throughout
the year. |
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Mounting
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| The Superior Gear Co. reducer is shaft-mounted with a flange
to accommodate a torque arm connection to resist rotation
of the housing. This allows a flexible mounting system
so the housing can move with the shaft without binding.
This eliminates the need for a precise machined mounting
surface to secure the housing to the frame. |
