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NORTON
1
1 4" AND
UNIVERSAL
HYDRAULIC TABLE TRAVERSE
LENGTHS 36" - 4S" - 72"
lg"
TYPE
GRINDING
U-4
MACHINES
NORTON
COMPANY
WORCESTER
6
MASS.
)
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NORTON 14" x 36" TYPE U-4 UNIVERSAL GRINDING MACHINE
Page 3
3
NORTON
Savings in
1 4"
& H
G R I N D I N G
GIVE YOU
TYPE
n
STEADY
U -
MACHINES
SAVINGS
UNIVERSAL
4
Set-Ups
Because of the extra versatility of the 14" and IS" Type U-4
Universals you have these important time-saving advantages:
Rapid Chucking - The swiveling headstock has a
conventional dog drive plate on one end of the
spindle for your dead-center grinding - plus a
6" D-l cam-lock nose on the other end for you to
mount chucks or fixtures.
With the U-4, you may
leave a chuck on the cam-lock nose and just swivel
the headstock 180 degrees to make real time-savings
in setting up chucked jobs. Vvhen left on the cam-
lock nose, the chuck does not rotate when you
grind on dead centers
.
Fast Cha
ngeover - Turning a knob on the headstock -
and a plunger in the face plate - quickly changes
the headstock to live or dead spindle operation.
Simple Wo
rk Speed Change - You change work speeds
easily and quickly - in a range from 60 to 36O
r.p.m. - by turning a small hand wheel on the
headstock
pendent Settings of ‘
.
/'/heel and Feed - You make
independent angular settings of wheel and feed
for faster performance of normally difficult jobs
- the U-4 gives you swivels abov
e and below the
feed ways.
Ea^ryJ/
Zhee
l Head Setting^ - Spring-loaded rollers
built into the lower swivel of the wheel head
facilitate angular settings and return of the
head to the conventional position.
Extra Capacity in Wheel_Head - You may increase
grinding capacity for angular grinds or other
special operations by repositioning the upper
wheel head member through a rack and pinion device.
r en
gth Capacity - You have additional capacity
for grinding long shafts - or for certain chucked
jobs - because of the 1-1/2" hole clear through the
headstock spindle
.
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You
Save -
. Through Speed
tne lype U-4 - because it grinds fast - and because of:
4
Rapid Change-
£ SI asss
is quickly swung upward out-of-the-way.
Set-up Und_l sturb e d
You do
piece quickly because there is
of the set
Rapid Output
featur^ f®Sd at table reversa
feature - gives you rapid, steadily paced output
arrangement grinding.
arrangement - available at extra cost - gives vou
hi
gh output with minimum effort
You Save -
_
In Maintenanc
ov er
,i?tef’nal and external
up
.
An automatic grinding cycle
e
ISSnTS
sss
grind on a work
no disturbance of
ls " a standard
in plunge jobs^
&t-
e
Further savings are obtained from the simolifipH
advantages of these machines.
Gro
upin
g_of_Flectrical.Controls - Electrical controls
□roupea in an elevated outside mounted enclosure
position SPNoe
position.
afford adequate space for inspection.
Easy Clean-Out
. _
—
facilitate removal of sludge in tank clean-out^
Co^^ient Lubrication^stem
side type reservoir is easily filled - and outside
mounted flow-control
j
... . —
provides exceptional conveniences
V:
he?kinS Which ls ^-in^an^up"
No groping or searching is required.
— ihe coolant tank has a ramped outlet
For example.
^
are easil
calves simply flow adjustment.
“
tor.
Y reached -
-
The ways lubrication
from:
are mounted
maintenance
and which
. The out-
Page 5
5
Page 6
6
THE
An Exceptionally Rigid
Wear-Resistant Sp
• Extra long, hard bronze bearings - 2-5/3" x 4-3/4" and
U - 4
GIVES
YOU
indle
2-3/3" x 4-3/4" - provide a superior bearing surface for
the spindle
• Bearings enclose practically the entire circumference of the
spindle and support over 50$ of the spindle body
• Bearings are force-feed flooded by filtered lubricant with
instant inspection of lubricant
flow through sight-glasses
on front of the spindle housing - an important safety feature
• Permanent alignment of spindle is assured by bearing design
• Long bearing surfaces assure low unit pressure under heavy
loads - and enduring accuracy under heaviest service
A Fast Internal
Grinding Spindle
. The hinged-type internal grinding spindle which swings upward,
out-of-the-way when not in use, permits you to grind the O.D.
and I.D. of a workpiece without disturbing the set-up - an
important time-saving feature
. The anti-friction bearing cartridge type internal spindle is
quickly swung into the grinding position and is driven by its
own motor
. A flexible hose and nozzle directs a steady flow of coolant
on the work
A Flexible
Grinding Wheel Head
. The wheel head compound swivel feature (swivels above and
S^
angular settings of wheel and feed - thus giving you the
de wa£s)
widest job-range capacity
' onUa
may fe6
5 the grinding wheel at any angle from zero to
90 degrees toward either the headstock
• The wheel head is rigidly constructed for fast
action and fine finishes
’ P
ermits y°u to establish independent
feeing you tne
or the footstock
grinding
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7
SPECIAL
Time-Savers in
HEADSTOCK
FEATURES
•.
Job Change-Over
. You make real time-savings by leaving a chuck on the 6
cam lock nose which is on one end of the spindle of the
swiveling headstock - and merely swiveling the headstock
n D-l
ISO degrees for doing chucking jobs
• The headstock spindle is a combination live-and-dead type,
and the chuck does not rotate when you grind on dead centers
• You quickly change over for use of either end of the spindle
because the headstock is easily swiveled
• Headstock swivel feature combines with swivel features of the
wheel head to give you added capacities for many special jobs
• Headstock adjustable speed work drive arrangement gives you
an infinite number of speeds within a range of 60 to 360
r.p.m. from A.C. power - gives you easy speed change - and
ample power throughout the entire speed range
. Work speed changes are quickly made by a small hand wheel on
the headstock which changes drive belt position on adjustable
pulley
• You get additional capacity - the headstock has a hollow
spindle which will take your work up to l-l/2
Tf diameter
clear through
• The headstock has a No
spindle
.
A No. 14 to No. 10 Jarno adaptor is furnished as
. 14 Jarno taper in both ends of the
standard
• Aligning pad on both sides of the headstock body provides a
fast, convenient means of precise swivel or straight setting
of headstock by indicating along pad
. Work rotation is controlled by a single lever that is easily
reached by your operator from his normal position
. In addition to providing starting and stopoing control, this
lever also permits work jogging for speedy* checkin* of work
run-out after mounting in chuck
0
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APPLICATION EXAMPLES .
8
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9
THE
• Quick-set table dogs are moved by merely pressing downward.
TYPE
these
U - 4
furth
ALSO GIVES
er
advant
YOU
ages
Provision is made for locking and for fine settings
• A combination lever and hand wheel operated footstock gives
you the best form of spindle control for the job
. Preset truing or grinding speed control assures return to
same speed after truing or grinding
. The wheel feed hand wheel is positioned at your operator
1s
hand - no reaching is required
. Table traverse hand wheel with adjustable graduated dial gives
you .100" per revolution in slow speed, and 1.000" in fast speed
. Separate controls permit selection of table dwell for right-
hand and left-hand ends of table travel
• Automatic bleeding of table cylinder when operating under
hydraulic power eliminates need of separate performance of
this function
. The base ways are protected by steel tape-type guards
. A large sight-glass on front of the base gives instant view
of level of hydraulic fluid in reservoir
. Automatic pressure lubrication of wheel slide and table
with.filtered lubricant
outside reservoir gives you most efficient
. Ways lubricant.flow control valves mounted accessibly
.
drawn from an easily filled
lubrication
ways
and cleaned
on rear
base give you instant means of flow control
• Hinged type wheel guard eases and speeds grinding wheel change
. You start all motors from one master start button
. A power wheel head rapid positioning mechanism is available
at extra cost
. An automatic grinding cycle arrangement is available at extra
cost
. The Norton SWIVALIGN Dual Electric Indicator for measuring
swivel table adjustment is also available
at extra cost
Page 10
SPEC IFICATIONS
10
General
Maximum swing ..........................................
Nominal swing ..........................................
Nominal lengths between centers . . .
Distance from external spindle axis to
work spindle axis
Maximum ..............................................
Minimum ...................................
Internal spindle
Maximum distance in front of work
Maximum distance back of work
Maximum diameter of work that
can be ground
center
center • .
with a 14" diameter wheel .
Standard grinding wheel ....
Size
Wheel guard capacity
...........................................
...............
Steadyrests
Maximum diameter of work accommodated . .
Center rests
Maximum diameter of work accommodated . .
Taper graduations
Inches per foot, on diameter:
Forward
Back
Degrees:
Forward
Back
Coolant tank capacity .....
Hydraulic oil capacity
Lubrication oil
Headsto
ck
capacity
....
.
.
lit"
14-31/32" 13-31/32"
14"
13"
18"
36" - 43" - 72"
22-1/4"
5-7/3"
4-3/16"
26"
4-1/2"
1-1/4"
10
3
14"
. . . Type 5
14" x 1-1/2" x 5"
. . 14" x 1-1/2"
/£"
t*
4 ,
1-1/8" 1"
9
3
15"
13"
7"
22"
o tf
3
7
2- 4/4
43 gals.
40 gals.
3
— l/
2 gal3.
Type
................
Spindle, taper hole both ends . ................
(No. 14 to No. 10 Jarno adaptor furnished
as standard equipment)
Work speed range (approx.)
Headstock swivels ....
Footstock
Taper hole
.
.
Motors
External wheel drive
Internal wheel drive
Work drive
.....
Hydraulic pump drive
Coolant pump drive
. .
. .
. .
. .
. .
.
Self-contained, Universal
. 60 to 360
No. 14 Jarno
r.p.m
.
. . 360 degrees
No. 10 Jarno
5 h.p.
2 h.p.
1 h.p.
1 h.p.
i h.p.
Page 11
Wheel Head
■i
11
SPECIFICATIONS
(continued)
Wheel head, upper swivel
Wheel head, lower swivel
V/heel Spindle
.
.
.
.
. . Swivels 90 degrees each way
. . Swivels 45 degrees each way
Type ..........................................
Spindle speed ...........................
Spindle drive from motor . .
V/heel Feed
Work diameter reduction, hand feed indexes to . .
Table
Traverse speeds
Lubrication of
Floor Space
Floor space
Shipping Specifications
(
Approximate
Net, pounds
Domestic, pounds
Export, pounds
(hydraulic power)
ways
26"
6
’ gw x 10' gw
)
26"
14"
9050
10.150 10,650
11.150
IS"
9550
11,600
6' gw x 12' g»
M"
14"
975010,250
10,850 11,350
11,950 12,450
18"
plain bearing
1750 r.p.m.
4 Vee belts
.0001"
2" to 240" per min.
pressure feed
22"
6' 8" x 16' gw
22"
14"
11.15011.650
12.650 13,150
13,950 14,450
18"
Because of variations in equipment and castings,
cannot be given. Motor weights are included.
exact weights
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