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PFAUTER UNIVERSAL MODEL P-1501 GEAR HOBBING MACHINE

GEAR HOBBER
Manufacturer:
PFAUTER
Model:
P1501
Year:
1972
Stock #:
10563
PFAUTER UNIVERSAL MODEL P-1501 GEAR HOBBING MACHINE

Suitable for hobbing straight spur and helical gears, pinions, splines,
spockets, worm gears, and other work-pieces of similar profile up to 60"
(1500mm) diameter, and 1.5 DP (Module 16) capability in steel.
Maximum diameter gear cut 60"
Maximum rated D.P 1.5 DP
Maximum axial travel of hob-slide 31.5"
Diameter of work table 47.2"
Diameter of work table bore 10"
Work table bore depth 32"
Maximum distance between centerline of hob spindle
and work table 34.25"
Minimum distance between centerline of hob spindle
and work table 2.35"
Maximum distance from table surface to centerline
of hob spindle 45.6"
Minimum distance from table surface to centerline
of hob spindle 14.2"
Maximum distance from table surface to lower bearing
surface of tailstock center 42.5"
Minimum distance from table surface to lower bearing
surface of tailstock center 24"
Maximum hob dimensions 9" x 11"
Hob speed range (infinitely variable) 38 to 180 RPM
Feeds Infinitely variable per revolution of table
Axial .020 - .240"
Radial .007 - .080"
Tangential .008 - .100"
Minimum No. teeth cut 12
Cont. on

(cont.)
Main drive motor 20 HP
Hob head rapid traverse motor 11 HP
Table rapid traverse drive 5 HP
Coolant drive 1.5 HP
Total connected load (approx.) 32 kVA
Machine dimensions (approx.)
Overall length 198"
Overall width 110"
Overall height 126"
Machine net weight (approx.) 39,100 LBS

Crowning Currently intermitent during operation
Single index
Universal power swiveling hob-head w/tangential feed w/hob slide and
hob column automatically clamped while in working position
Powerfull motor driven work table, worm gear of bronze, w/duplex
worm drive & brake system for eliminating backlash
Work table and main base of special "modular" construction w/outboard
support column and hydraulically actuated "clam-shell" type tailstock
Power forced lubrication to all working elements with all guide-ways
and frame assemblies designed to provide optimum thermal stability
under the heaviest of cutting conditions
Full autoamtic cutting cycles, with capability of axial, radial
tangential. diagonal, climb, and conventional hobbing
Automatic-two-cut" cycle w/speed and feed change between both roughing
and finishing cuts
Prime number hobbing equipment for cutting prime numbers over 199 teeth
Differential mechanism for helical gear cutting
Automatic infeed (infinitely variable)
Automatic dwell equipment
Infinitely variable axial feeds and infinitely variable hob speeds
Steplessly variable hob shift w/power automatic retraction of hob
arbor counter-bearing
Cont. on page 3
Page 3 of 3

(cont.)
Automatic hob clamping device
Automatic table relief system
Full complement of electrics (motors/controls) (presently arranged for
480 Volt, 60 Hz operation)
Operator's pendant control station/panel
Complete self contained coolant system w/high volume pump & nozzle
Magnetic chip conveyor
Splash guard wall. doors, covers
Operator's catwalk with stairs
Assorted work sub-table fixtures, bushings, mandrels
Change gears for index and differential
Five (5) hob-arbors (1.25", 1.5", 2", 2.5" Diameters)
Fixators / leveling shoes
Misc. wrenches, spanners, misc. operator's tools
Full machine documentation for machine & controller operator's manuals,
wiring & hydraulic diagrams

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