Heavy rolled steel side frames extend beyond the wheels providing superior
strength and added protection for trackwheels
Thick section steel clevis suspended from steel equalizer pin. Alloy steel axles
and equalizer pins are heat treated for maximum strength and wear life.
Trolley wheels are fully machined from alloy cast iron and hardened for high
strength and long service life. Units 1/4 through 16 tons employ universal
wheel treads for use on flat or tapered beam flanges. 25 ton model operates
on American Standard I-beams with tapered flanges. For patented track,
Lifetime lubricated, precision ball bearings standard on units through 3 ton
capacity. 4 ton ...
Steel frame side plates extend beyond the wheels for end stop contacts.
Side plates have tapped holes for optional safety drop stops & bumpers.
Wheels are forged heat-treated steel with contoured tread for use on
American Standard tapered or wide flang flat flange beams.
Wheel bearings are sealed lifetime lubricated precision ball bearings
Traverse gear reducer is rugged right angle drive reducer with output
pinion meshing with machine cut wheel gears. The drive units are
shipped with high-grade synthesized hydrocarbon oil for excellent gear
protection and wide temperature range capacities.
Eight vane air motor provides high torque, smooth starting and excellent