Norton No. 3 Cam-O-Matic Automatic Cam Grinder Grinder

CATALOG

NO.

191-1

N-7369-A

■Sftakinq better products ■■■to make your products better

—

O

CAM-O-MATIC

AUTOMATIC

the Machine that gives yo

HYDRAULIC

CAM GRINDER

. . . Built-in

/

Operating Skill

SIZES

5" x 26"

5" x 30"

5" x 40"

Grinds all cams and the eccentric on a camshaft suc

cessively — automatically — in one handling

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Better Shape ...

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output — when you grind automotive-type
Its rapid, automatic action gives you sustained low costs by consist
ently producing at high rate and by reducing effort and attention
to the point where an operator can easily tend more than one machine.

straight-face cams at high rate. The standard arrangement of the
machine equips you to grind straight faces on your cams —
in one direction. Beyond this, you may have the machine arranged

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to grind two-way tapers, at extra cost. With both the standard
and optional arrangements you grind straight-face cams by simply
locking-out the taper arrangement.

Better Finish ...

More Production

You improve cam contour — get better finish — and you increase

camshafts in this machine.

In addition, the No. 3 also equips you to grind tapered as well as

or tapers

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You get notable improvement in cam contour and finish through
aid of an all-timing-belt work drive which produces a positive, smooth
work rotation by eliminating slippage. This feature provides the
extra benefit of delivering more power than previous designs. Auto

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matically controlled two-rate work speed; automatic truing by a wheel

guard type device, and substantially stronger rocking bar and tables

contribute other advantages which combine to increase your product

quality — and to decrease its grinding cost.

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{NORTON}

3

*

With the No.

You

THEN

Load and Move On© levef^^

• • •

© short table movement brings first cam in front of grinding wheel

rocking bar tilts forward bringing master cam and roller into con
tact — work rotates — automatic wheel feed starts

the cam makes a predetermined number of revolutions against
the grinding wheel — fast at first for rapid stock removal; then
automatically reduced for accuracy and finish

the rocking bar tilts back, clearing work from wheel and master

#

cam from roller —

the next cam is quickly brought in front of wheel — the roller is
shifted to proper master cam — and master cam rotation stops
momentarily while master

and wheel resets rapidly*

cam makes shockless contact with roller

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This sequence continues to repeat automatically until a
cams and the eccentric on the shaft have been ground

after which the following automatic functions also occur:

the table begins its return to the starting position

And as it starts

grinding wheel reciprocation stops —

automatic wheel guard type truing device immediately begins

its round-trip across the wheel face (at the adjustable, prede

termined speed and feed), cutting on each pass

automatic compensation of wheel head setting occurs after each

pass of the diamond for the amount trued from the wheel face

During which

the operator has reloaded — moved one lever — and the machine
starts again through its automatic cycle immediately upon com

pletion of truing.

• • •

• • •

and the diamond in the

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*There is a minimum of

O-MATIC
required for stock removal. This reduced wheel slide tra^^^^

(which may occur up to 300 times per hour) minimizes

and shock, and makes for much quieter operation.

Machine. Substantially, it is only the amoirj^k

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wheel

slide travel in the No. 3 CAM-

wear

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Exceptionally smooth, positive work rotation from the
all timing-belt drive aids production of finest finish
on your cams

The automatically controlled work speed feature pro

duces optimum conditions for both stock removal and
finish during a single plunge grind — thus aiding pro
duction and improving product quality

The automatically controlled work speed change to the

reduced rate for fine finish occurs at point desired by
simple setting of a counter.

#

The master cam spindle and its adjustable bearings
form a cartridge-type unit permitting quick changeover
to a different set of master cams when desired

SMOOTH WORK DRIVE

-

TIME-AND-COST SAVING TRUING

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The automatic wheel guard type truing device goes into
operation immediately after the last cam on the shaft

has been ground — without respect to wheel slide
position —
close, uniform control of the amount of wheel face
removed

and it reduces wheel cost by providing

HEAVY CONSTRUCTION AIDS OUTPUT

AND ACCURACY OF CONTOURS

Heavily constructed tables and rocking bar aid output
by making heavier feeds possible and assist develop
ment of more accurate contours by providing increased
stability

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;

STURDY FOOTSTOCK

The sturdily proportioned footstock has a hardened
spindle which is ground to close fit in lapped, heat-
treated sleeves in footstock body for enduringly accu
rate work support

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J.I.C. Standards in both electrical and hydraulic equip
ment — plus new Norton design features simplifying
hydraulic system arrangement — assure low mainte
nance costs.

J.I.C STANDARDS

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^NORTONy

5

WHEEL FEED MECHANISM

SE.-828-A

Automatic feed accomplished by “

micrometer-fine accuracy obtained by the metal-to-metal contact
afforded by this method

Automatic feed quickly adjustable over a wide range — with auto

matic reset of the wheel

Settings for automatic feed are quickly made through movement of

the hand wheel

Feed adjusting wheel at your hand — no reaching

Wheel feed mechanism combines most efficient hydraulic and

chanical features —

Wheel feed hand wheel has “

quick setting to fine feed increments of .0001

Graduations on wheel feed hand wheel give ready indication

of amount of infeed as wheel rotates past fixed pointer

assuring fast, accurate sizing

revolving the feed screw" —

click-count

” indexing mechanism for

" without

visual

attention

me

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9

WHEEL SPINDLE UNIT

N-6944

Over 50% of spindle body enclosed in two super-duty size, hard bronze bearings

to give you maximum service.

The Norton spindle stays on its fixed center-line — no shifting is possible.

Ruggedly proportioned spindle is specially toughened for wear resistance and

is rigidly supported over practically
action.

Bearing length more than twice the diameter — to give extreme resistance to

wheel pressures.

Bearings automatically
Heavy-duty, flood-lubricated end thrust bearing at center of spindle gives

extreme lateral stability.

Self-contained lubricating unit within wheel spindle housing automatically delivers

film of filtered lubricant between spindle and bearings.

Automatic lubricant flow clearly visible through bull’s eyes — an important

safety feature.

Extremely low unit pressure due to long and continuous bearing surfaces gives

you long service under heavy production loads.

Wheel speed changes possible without readjustment of bearings.

An unmatched service record.

flooded

its entire circumference to give you fast grinding

by

filtered lubricant to combat wear.

fh/ORTONy

7

STRAIGHT

FACE

or

TAPERED

CAMS

as You Desire

The standard No. 3 CAM-O-MATIC Cam Grinder equips you to
grind straight-faces or tapers on cams in one direction. The taper
range is zero to thirty minutes.

When one-way tapers are to be ground, the wheel slide is set at
the required angle by adjustments on the rear of the machine. The
slide is trued in its angular grinding position by the automatic truing
device. No special positioning of the slide is required.

TWO-WAY TAPER ARRANGEMENT

This arrangement is available at extra cost. It automatically
swivels the wheel slide to the required setting right and left of the
straight position to grind each cam taper in the direction desired. The
taper range in both directions is zero to thirty minutes.

The swiveling action is initiated by
the machine. Angular settings of the wheel slide are controlled by
adjustable stops on the redr base.

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special dogs mounted on front of

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CHANGE TO STRAIGHT FACE CAMS

Whether the machine is set up to grind taper-face cams in one or

both directions, the changeover to grind straight-face cams is accom
plished by adjusting the swivel stop dogs and locking the slide in the
conventional position.

All timing-belt work drive aids
cam finish by providing extremely
smooth, positive work rotation
through elimination of slippage —
and delivers more power than
previous designs

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MAINTENANCE

EASING

FEATURES

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also Reduce Your Costs!

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Simplified hydraulic system arrangement reduces piping — improves dependability

Oil pumps, filters and relief valves mounted in easily-reached location above hydraulic
fluid reservoir afford instant access for checking

Outside-type hydraulic fluid reservoir is easily cleaned or filled, and provides large sight-
glass giving constant indication of level

Electrical controls enclosure mounted on machine base saves floor space

Ramped coolant tank outlet eases tank clean-out

Hinged-type grinding wheel guard speeds wheel change

Steel tape type base way guards

Ways lubricant flow control valves are mounted on outside of base where they are easily

reached

Ways lubricant reservoir is easily filled outside-type

afford

fine protection of ways and require no floor space

tfNORTON^

9

EQUIPMENT and FEATURES

Included in Machine Price

Work drive mechanism

# Electrically controlled cycle

Work and wheel speeds for both finish and rough grinding.
wheel speeds are 6500 s.f.p.m. for finishing and 8500 s.f.p.m. for roughing

# Footstock, with carbide-tipped center

Swivel table

Table traverse hand wheel for setting up

Adjustable indexing dogs

Wheel guard, 24" diameter
Wheel sleeve, balancing type, for 18" hole wheels
Wheel guard truing device, including hydraulic traverse, hydraulic control,

automatic ratchet down-feed and mounted diamond
Wheel spindle reciprocating attachment

Two steadyrests with carbide-tipped shoes
Two work drive dogs or one work driver

• Master cam spindle with cartridge-type bearings and carbide-tipped center
Two grinding wheels, 24" diameter, 18" hole and the required width,

straight side
Automatic wheel wear compensation

# Arrangement for setting wheel slide at an angle in one direction for taper

grinding cam faces
Automatic filtered wheel spindle lubrication

Automatic force-feed lubrication to table and wheel slide ways

Complete coolant system

• Steel tape type base way covers
Complete set of wrenches and protection guards

Model cams and master cams as required are priced additionally

Standard

MOTORS

Work drive motor, 1 H.P., two speed, 1200/600 R.P.M., A.C., totally enclosed,
ball bearing with control

Wheel drive motor, 7/i H.P., 1800 R.P.M., A.C., totally enclosed, ball bearing,
with control

Oil and lubricating pump drive motor, 2 H.P., 1200 R.P.M., A.C., totally
enclosed, ball bearing, with control

Coolant pump motor, 14 H.P., 1800 R.P.M., A.C., totally enclosed, ball bearing,
with control

Motors included in price are 50 or 60 cycle, with controls for any

600 volts, and are wired in accordance with J.I.C. Electrical Standards.
Machine meets J.I.C. Hydraulic Standards with outside hydraulic fluid reservoir.

voltage

up

f

'

to

♦

MACHINE SPECIFICATIONS

GENERAL

Length Capacities

Maximum Swing over Rocking Bar (diam.)
Maximum Lift of Cams
Swivel

Table

Steadyrest
Maximum diam. work ground with

Grinding Wheels

Standard
Wheel Sleeves available for either
Coolant Tank Capacity (U.S.

Coolant Pump Capacity (Gallons per min.) ....

Hydraulic Oil Reservoir Capacity (U.S. Gallons).
Lubricating

* = Width required for job

Width of flat way
Width of V way (projected)

Lubrication

Length of bearing ways . ...

Width of flat way

Width of V way (projected) . . .
Overall width
Total bearing area (projected)
Lubrication

.............................................................

....................................................

Adjustment (approx, incl. angle). . .

Capacity

........................................................

. . ..................................................................

Gallons)

Oil

Reservoir Capacity (U.S. Gallons)

24"

............

wheel.

.....................

..................

BASE WAYS

...................

.......................

............

WHEEL SLIDE

of

ways (projected)

.............

. .

26", 30" and 40"

24 x w* x 18

12" or 18" holes

......................

.........................

Automatic

....................373

.......................

...................

................... 205/."

Automatic Pressure

...........

Vh

2/7

2Vi"

2'/2"

Pressure

/«"

5V$"

4-11/32"

372 sq. in.

5"

2°

m

5"

46
21
60

WORK DRIVE AND MASTER CAMS

Master Cam Spindle bearings
Master Cams

Standard Diam.
Standard Width .

Roller

Shaft

Master Cam

Work

Center

Work Center Taper

Work Speeds,

(Two speed) Roughing
(Two speed) Finishing

.........................

diameter

Roller

diameter. . .

Normal:

...........

diameter. .

.....................

...........

.........

2

Vi x 3

Vi" and 1 Vs x 3"

4'/2"

7/16"

.23/i"

. . . .1 Vi"

= 10 Jamo

100

to

70

to 35

FOOTSTOCK

Spindle diameter . . .

Work

Center

Work Center Taper

diameter

.............

...114"

= 10 Jarno

WHEEL SPINDLE

Material ..........

Bearings (hard bronze) .

Reciprocation

Lubrication .

Machine Lengths

.......... .........

........

26"

Heat Treated Alloy Steel

3V4 x 8-5 16" and 3

....................................................

Automatic

30"

Vi x 7

40"

0-%"

Flood

FLOOR SPACE

ll'-S'/l"

Projected lengths

Projected width (cabinet door open).

Projected width (cabinet door closed)

....................

.

.

8'-6'/2"
6'-9"

11 -8 Yi

8'-6’/2 "
6'-9"

127"

"

8'-6«/2"
6'-9"

SHIPPING SPECIFICATIONS

Domestic
Export Shipping Weights .

Shipping

Cubics — Boxed for Export.
Because of variations in equipment and castings, exact weights and cubics cannot be given. The above

weights are in pounds; cubics are in cubic feet. Motor
The descriptions, illustrations and specifications in this booklet are correct at the time of printing.

Since the policy of Norton Company is

differ from these details

may

Weights. .

to

constantly

some extent.

15,600

15,500
1 6,900

754

weights

are included.

to

improve its machines, those built at later dates

17,000

754

15,900
17,300

754

5"

50

2"

Vi"

^NORTON}

11

Semiautomatic Cylindrical Grinders

OTHER NORTON PRODUCTS

Universal Grinders

MACHINES FOR

• CYLINDRICAL GRINDING

• SURFACE GRINDING

• CYLINDRICAL AND FLAT LAPPING

• UNIVERSAL TOOL AND CUTTER GRINDING

• UNIVERSAL GRINDING

• SPECIALIZED GRINDING

• CAM AND SHAPE GRINDING

• CRANKPIN AND CRANKSHAFT BEARING
GRINDING

• ROLL GRINDING

• ATTACHMENTS AND EQUIPMENT FOR

SPECIAL WORK

• AUTOMATED GRINDING AND LAPPING
MACHINES

Abrasives
Non-Slip Floors

Plain Cylindrical Grinders

MACHINE DIVISION OFFICES Telephone Numbers

Worcester 6—New Bond Street
W. Hartford 7—1007 Farmington Avenue . ADams 3-6462
Cleveland 3—1306 East 55th Street .

Detroit 8—5805 Lincoln Avenue

Chicago 32—4737 So. Christiana Ave.. .LAfayette 3-8700

New York Area—Green and North Streets.

Teterboro, New Jersey. ... Hasbrouck Heights 8-1771

New York

Grinding Wheels

Encapsulating Machines

Refractories

NORBIDE Products

PLeasant 2-4641

..

HEnderson 1-9500

TRinity 5-8991

BRyant 9-6170

et

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for complete line of
Norton Grinding and

Lapping Machines

Write for Catalog

1843

fl}akincf better products ...to make your products better

FORM 19I-IP-2500-7-55-GOP

Lapping Machines

Cutter and Tool Grinders

Surface Grinders

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COMPANY

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EXPORT: NORTON BEHR-MANNING OVERSEAS INC.

s

TER 6, MASS.

WORCESTER 6, MASS., U.S.A.

Cable Address: NORBEMO, Worcester

U. S. A.

Printed in U.S.A.