Bridge cranes are among the most useful machines in many branches of modern industry. Using standard hooks or other specialized clamping devices, they can lift, transport, discharge, and stack a variety of loads. Gear technology progress has always been influential to advances in bridge crane design, allowing lighter and more productive cranes. Many bevel-helical gear units are employed in the traveling drives of big industrial bridge cranes, as they form compact packages with couplings, brakes and electric motors that other gear units do not allow for.
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