These 3.25” input to output shaft distance gearboxes areavailable in ratios of 10:1, 15:1, 20:1, 30:1, 40:1, & 60:1 with outputs in left hand shaft, right hand shaft, dual shaft, and hollow shaft.
Source URL: AutomationDirect announces 325 frame size IronHorse cast iron worm gearboxes
Source Website: Factory Automation – Automation.com