Despite their high load capacity, parallel helical gearboxes can be engineered with a relatively compact design, which is often a crucial consideration when space is limited in the crane's construction. This allows for a design that integrates the gearbox efficiently without taking up unnecessary room.
Crane Duty Parallel Shaft GCN Helical Gear Box Manufacturer
https://www.gammagears.com/gcn-helical-gear-unit/
Parallel Helical Gearboxes for Heavy-Duty Gantry Cranes
