No. 70-15 Fellows Heavy Duty Internal/External Gear Shaper

Manufacturer

FELLOWS

Category

Gear Machines

Type

GEAR SHAPERS

Stock

28025

Model

70-15

Dealer Location

Ohio

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Spec Sheet

#70-15 FELLOWS HEAVY DUTY INTERNAL/EXTERNAL
GEAR SHAPER
Serial No 34679, Model 70-15

Suitable for the manufacture of external straight
spur gears up to 70” (1778mm) pitch diameter,
as well as internal spur gears and splines within
a range of 0” to 88” (2235mm) pitch diameter,
regardless of shaper-cutter radius.
This unique feature, combined with the machine’s
15” (381mm) face-width capacity, and 1.7 DP
(14.9 module) cutting capability in steel,
provide a formidable platform for producing a
wide range of larger geared part members.

EQUIPMENT / FEATURES:
Massive machine main base with work-table, upper
column, cutter ram and slide of “super robust”
construction
Machine with “saddle backoff” method of cutter
relieving
Heavy duty cutter spindle 6.25” (158.75mm)
diameter with standard straight spur guide
Cutter positioning via stroke jog-button
Rapid rotation of work spindle for trueing work-piece
T-slotted work table with center bearing cap
Rapid saddle traverse for traversing saddle relative to work automatic depth feed mechanism for one to four cuts, with 4-speed motor providing speed change on finishing cut
Assorted work and feed change gears
Assorted stroke change gears
One (1) cutter adaptor
Riser plate of 2” (50.8mm) height
Main drive motor 15 hp, 650/2200 rpm, 240
volt 60 hz w/Westinghouse rectifier unit for ac
Power forced lubrication to all working elements
with “Lubriquip multi-purpose lubrication
controller”
Coolant tank, pump, and piping, with chip pan
Full complement of electrics, (motors/controls)
Assorted guards, covers

PRINCIPAL SPECIFICATIONS:
Maximum diameter external gear cut
(nominal)....................... 70” (1778mm)
Maximum diameter internal gear cut
(nominal)....................... 88” (2235mm)
Max diameter workpiece accommodated 104” (2642mm)
Worktable diameter............... 84” (2133.6mm)
Max permissible weight of
workpiece & fixture...... 36,000 Lbs(16,500 kGs)
Maximum distance, workspindle centerline to centerline of cutter spindle... 35” (889mm)
Minimum distance, workspindle centerline to centerline of cutter spindle......... 0” (0mm)
Maximum work & fixture clearance height w/cutter
spindle in uppermost position.... 28” (711.2mm)
Maximum diametral pitch (full
length teeth)..... 2 DP (12.5 module)
Maximum diametral pitch (stub
teeth)............... .75 DP (24.5 module)
Maximum diameter pitch (30°P.A.
splines)................. 2-5/5 DP (11 module)
Diameter of cutter spindle...... 6.25” (158.75mm)
Maximum stroke length......... 19.118” (485.6mm)
Maximum face-width (nominal)....... 15” (381mm)
Stroking speeds (inf variable).. 5 to 122 S.P.M.
Maximum infeed of cutter ram.. .0020 inch/min (.0509mm/min)
Minimum infeed of cutter ram .0005 inch/min (.0127mm/min)
Max rotary feed per stroke (per 1" of
cutter diameter) .0068 inch/min. (.1727mm.min.)
Min rotary feed per stroke (per 1" of
cutter diameter) .0006 inch/min. (.0152mm.min.)
Machine overall length....... 192” (4877mm)
Machine overall depth........ 144” (3657mm)
Machine overall height....... 150" (3810mm)
Machine net weight(approx)95,000 Lbs.(43,182 kGs)

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