72HWD GOULD & EBERHARDT UNIVERSAL GEAR HOBBER - #28604

Description

Model No. 72HWD GOULD & EBERHARDT Universal Gear #28604
Hobbing Machine, Serial No. 5440A2 (New 1958)
Suitable for the cutting of spur and helical gears, pinions, splines,
sprockets, and other workpieces of similar profile up to 84” (2124mm)
diameter, with optional larger 50” (1270mm) diameter work-table with
13” (330.2mm) thru-bore diameter
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EQUIPMENT / FEATURES:
Heavy duty worm-driven swivel hob-head (w/manual hob-shift)
Pptional larger diameter 50” (1270mm) machine work-table
with special 13” (330.2mm) diameter through-bore
Work table drive with single-thread dual-lead index worm & gear
w/axial backlash adjustment
Outboard support column w/tailstock & center
Differential mechanism facilitating helical gear cutting
Automatic infeed with vernier scale
Power rapid traverse for main column and hob-slide
Climb & conventional hobbing capability
Power forced lubrication system to all working elements
Self contained coolant system, pump & piping
One (1) hob arbor  (1-1/4” diameter)
Large assortment of change gears for feed, index, and differential
Full complement of electrics, (motors controls)
Misc. guards, covers
PRINCIPAL SPECIFICATIONS:
Max. rated diametral pitch (module) in steel
1.25 DP (20 module)
Maximum hob diameter
10.75” (273mm)
Maximum distance hob-spindle centerline to
centerline of work-table
69” (1753mm)
Minimum distance hob-spindle centerline to
centerline of work-table (w/oversize 50” diameter work-table)
9” (229mm)
Face capacity – spur, pinions, gears
24" (609.6mm)
Face capacity 45º helical gear
18” (457.20mm)
Max. diameter spur gear (w/o support)
84" (2124mm)
Max. diameter spur gear (w/support)
48” (1220m)
Max. diameter 45º helical gear
72" (1830mm)
Work table diameter
50" (1270mm)
Index worm gear diameter
48" (1220mm)
Work-table thru-bore diameter
13” (330.2mm)
Infeed range
.003-.200” (.076-5.08mm)
Index range (per catalog) incl. primes
15 to 100
Index range (per catalog) excl. primes
100 to 400
Hob speeds, number
14
Hob speeds, range
5 to 80 RPM
Main drive motor, horsepower
15 HP (11.19 kW)
Rapid traverse motor, horsepower
5 HP (3.37 kW)
Electrics
Floor space, approx.
82”x175” (2080x4450mm)
Height, approx.
112” (2.840mm)
Weight, approx.
43,000 Lbs. (19,545 kG)
F.O.B. OUR WAREHOUSE  ,500.00
ALL MACHINE/EQUIPMENT ARE SUBJECT TO PRIOR SELL