Norton 6" x 18" NORTON CTU PLAIN CYLINDRICAL GRINDER

6" x 18" NORTON CTU PLAIN CYLINDRICAL GRINDER
Year: 1951


GRINDING WHEELS
Standard........................................ 24" x 3" x 12"

WHEEL AND WORK CENTER DISTANCES
Maximum......... (6") 21" Minimum............. (6") 8 1/4"
Automatic rapid advance stroke (max)............ 4"
(On semi automatic machines)

STEADY REST
Maximum work diameter accommodated.............. 4 5/8"
Swivel table adjustment (in/per/ft on dia.) -
Machine length.................................. 72"
Maximum taper (inches).......................... 1 1/2"
Maximum taper (degrees)......................... 3 1/2º

HEAD STOCK
Center diameter................................. 1 3/4"
Center taper.................................... No. 14 Jarno
Work speeds, AC Motor (6" C 5).................. 50 80 125 200 RPM
Work speeds, DC Motor (w/1 belt change)......... 30 275 RPM

FOOT STOCK
Center diameters................................ 1 3/4"
Center taper.................................... No. 14 Jarno

WHEEL SPINDLE
Large bearing (L.H.)............................ 3 1/2" x 8 5/16"
Small bearing (R.H.)............................ 3 1/4" x 7 1/8"

TABLE
Range of speeds (in/per/min)....................... 2 240"
Number of speeds................................... Infinite

EQUIPMENT & FEATURES
Head stock dead center type, including No. 14 Jarno center
(1 3/4" diameter).
Foot stock, lever type, including No. 14 Jarno center
(1 3/4" diameter).
Wheel guard for 24" x 5" straight side wheel.
Wheel sleeve, balancing type, for 12" hole 2 3/8", 3 3/8" face, straight side wheel.
Diamond tool holder, foot stock type.
Hydraulic table traverse.
Single speed hand table traverse with interlock.
Swivel table.
Adjustable dwell control.
Automatic force feed lubrication to table and gravity feed to wheel slide ways.
Automatic adjustable infeed at each table reversal, also automatically resets index to original position.
Automatic filtered wheel spindle lubrication.
Steel tape type base way covers.
Hand grinding wheel feed.
Complete coolant system with selector switch to provide automatic or manual control.
Automatic work start and stop.
Wheel speed safety control.
Work drive motor, 1 HP, 1200 RPM AC, totally enclosed ball bearing with control.
Wheel drive motor, 7 1/2 HP/1755 R.P.M. AC, 3/220 440, totally enclosed ball bearing with control.
Oil and lubricating pump drive motor 1 1/2 HP.
1200 RPM AC, totally enclosed ball bearing with control.
Coolant pump drive 1/4 HP, 1800 RPM, AC integral type motor
and control.
Automatic grinding cycle.
Adjustable rapid hydraulic wheel head advance with automatic cushioning.
Duplitrue behind wheel dresser.
Automatic rapid wheel head retraction.
Adjustable electric timer for control of cycle.
Selector switch to provide auto or manual cycle control.
Shoulder grinding arrangement.
Federal in process gaging.