16-56 Barber Colman Horizontal Gear Hobber


Stock #



City Not Specified, Ohio
United States


Maximum Raed Diametral Pitch (Nominal) 6 DP (4.2 Module)
Maximum Rated Diameter of Work 16" (400mm)
Maximum Hob Diameter 5" (127mm)
Maximum Hob-Slide Travel 56" (1422.4mm)
Maximum Work Slide Travel 8" (203.2mm)
Max. Work Spindle Centerline to Hob Spindle Centerline 8.75" (222mm)
Min. Work Spindle Centerline to Hob Spindle Centerline 0.75" (19.05mm)
Work Spindle Face to Standard Tailstock-Center 84" (2134mm)
Addtl Center-Distance Provided by Over-Arm Rear Support Extension 61" (1549mm)
Total length of Shaft-Type Work-Piece Accommodated (Provided it can be fed through Work-Spindle Bore) 145" (3683mm)
Work Spindle Thru-Bore Diameter 4.13" (105mm)
Hob Speed Range 59 - 246 RPM
Feed Ranges 0.015 - 0.150 IPR
Main Drive Motor 5 HP / 1800 RPM
Rapid Traverse 2 HP
Coolant Pump 1/4 HP
Lubrication Pump 1/20 HP
Machine Size (Floor Space) 172" x 62" (4369mm x 1575mm)
Overall Machine Height 76" (1930mm)
Approximate Machine Weight 9,500 lbs (4318 Kg)

Equipped With

Cutting Of Spur/Helical Gears, Pinions, Splines, And Other Workpieces Of Similar Profile Up To 16" (400mm)  Pitch Diameter, And 56" (1422mm) Face Width, With Extended Rear Over-Arm For Support Of Longer Shafts Which Might Be Fixtured And Inserted Behind And Through The Work-Spindle Bore.
Standard Hobslide W/Swivel Hob-Head  (+/- 45 Degrees Swivel). Anti-Friction Bearing Hob-Head. Standard Overam-Support W/Adjustable Lever-Type Tailstock W/Center. Extended Over-Arm Support (Behind Work Spindle).   With Secondary Adjustable Tailstock & Center. One (1) Hob Arbor (1.25" Diameter). Assortment Of Change Gears. Double Thread Index Worm. Manual Chucking Work-Head. Work-Head With Anti-Friction Bearings. Power Rapid Traverse For Hob Carriage. Complete Coolant System, Pump Tank & Piping. Full Complement Of Electrics (Motors/Controls). Assorted Guards/Covers.

This machine is being offered thoroughly checked out, cleaned and cycled.  It is being offered with a 30-Day Return Privilege and may be inspected under power.

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