| Model No. 72HWD GOULD & EBERHARDT Universal Gear |
| Hobbing Machine, Serial No. 5440A2 (New 1958) |
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| TO VIEW VIDEO: |
| Click Here To Watch Video 1 |
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| 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 |
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| PRINCIPAL SPECIFICATIONS: |
| Max. rated diametral pitch (module) in steel | 1.25 DP (20 module) |
| Maximum hob diameter | 10.75” (273mm) |
| Maximum hob length | 16" |
| 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) |
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| PRICE: $49,500.00 |