Alloy Steel for Added Durability
Gears and pinions are alloy steel, machine cut, heat-treated and mounted on heavy-duty roller bearings. Precision formed alloy steel load chain runs in a reversible 5 or 6 pocket load sheave.
Rugged, Lightweight Design
Standard construction features include a lightweight steel frame, heavy duty steel covers, ball bearing supported load shaft and a durable, efficient, grease lubricated planetary gear train
Smooth, Trouble-Free Operation
Load and hand chain guides assure smooth, trouble-free operation
Precision Load Handling
A fast acting Weston Style brake provides smooth, positive load handling
Mechanically-Sealed, Grease-Tight Enclosure
Heavy steel housings keep out most foreign material, protecting
precision-machined working parts. Sealed enclosure keeps
lubrication in, making the Chester Zephyr a lifetime-lubricated hoist
under normal conditions. No protruding parts prevent snagging.
Durable Internal Gears, Pinions & Pinion Shafts
Internal gears and pinions are made of nickel-chromemolybdenum
alloy steel. Internal gear is heat treated for
durability and strength. Machine-cut teeth are heat treated
and mounted on heavy-duty roller bearings. Gear and pinion
shafts are made of rigidly mounted alloy steel and are
surface hardened and ground.
Flexible and Adaptable
The Zephyr design is easily adaptable to meet the special requirements of most applications
Load Wheel
Heat-treated cast steel with spline fit to load shaft. Chain
pockets are accurately formed, and load wheel can be
reversed when new chain is installed to effect double life.
Shock Resistant
Stamped covers made of heavy-gauge steel, two rolled steel
sections in the frame and strong alloy steel suspension provide
durability and shock resistance.
Chain Stripper
Ductile Iron.
Easy Dismantling
Using only a small wrench and screwdriver, operators
can make periodic inspections or replace chains and
parts with ease.
Load Chain Guide
Completely shrouds load sheave, guides chain into load wheel
and efficiently shields these parts from entry of foreign objects.
Gear Train
Center planetary system uses modified involute stub tooth
form. Gear teeth are cut from solid alloy steel blanks and
heat treated for added strength.
Load Chain
Made of durable steel. Links are precision formed to fit
pockets of load wheel. Heat treated for high tensile strength
and hardness.
Hand Chain Guide
Designed to eliminate fouling and permit angular pull
on the hand chain.
Pinion Cage
Spline fitted to the steel load wheel shaft.
Top Hook Assembly
Permits hoist to rock and swivel under load. Alloy crosshead
rocks in rolled steel straps welded to frame. Alloy hook is heat
treated. Drop-forged alloy steel hook will open before fracturing.
Driving Spindle
Made of nickel-chrome-molybdenum alloy steel with
machine-cut teeth. Operates on heavy-duty bearings.
Bottom Hook Assembly
Consists of forged alloy steel hook operating on thrust bearing
with full swiveling action.
North America - EN
