Liebherr L 301 Gear Hobber Machine Gear Hobber Machine Specification: Maximum Pitch Diameter with a 4″ Hob 13.32″ Maximum Pitch For Hobbing Steel: 4,25 DP Maximum Workpiece Diameter: 11.811″ Travel Of Hob Head Carriage: 8.858″ Work Table Diameter: 12.401″ Hob Spindle Centerline Above Machine Table: 6.496″ Minimum Maximum Length Of Workpiece: 26.772″ Infinitely Variable Radial Feed: .039″ – .472″/Minute Rapid Traverse Of Hob Slide: 37.795″/Minute Weight Of Machine: 14,000# Approx Maximum Hob Length …5.900″ Maximum Hob Diameter: 5.512″ Maximum Hob Shift Or Tangential Travel: 5.900″ Hob Head RPM, Infinitely Variable: 80 – 640 Contact Us