Reference Number: 141905

10" X 20" BROWN & SHARPE
 (MADE IN USA) "HIGH-PRECISION"
 UNIVERSAL I.D./O.D. CYLINDRICAL GRINDER
 
  MODEL: 1020U   S/N: 521-1020-228    NEW: 1975 
 
 
  SWING OVER TABLE .................................... 10" 
 DISTANCE BETWEEN CENTERS, NOMINAL .................... 20" 
 DISTANCE BETWEEN CENTERS, MAXIMUM ................ 22-3/4" 
 
  WHEELHEAD SPINDLE SPEEDS (3) ...... 2100, 2400 & 2800 RPM 
 GRINDING WHEEL SIZE ........................ 12" X 1" X 5"
 MINIMUM GRINDING WHEEL WIDTH ........................ 3/8" 
 SWIVEL AT THE WHEELSLIDE ........... 90 DEGREES EITHER WAY 
 WHEEL SPINDLE SWIVELS .............. 90 DEGREES EITHER WAY 
 
  INFINITELY VARIABLE SPINDLE SPEEDS ........ 60 TO 600 RPM 
 HEADSTOCK SPINDLE NOSE TAPER ....................... A2-5" 
 HEADSTOCK SWIVELS EITHER SIDE OF ZERO ......... 90 DEGREES 
 
  INFINITELY VARIABLE TABLE SPEED .......... 3" TO 150" IPM 
 TABLE PER REV. OF HANDWHEEL: 
 SLOW ................................................ 0.1" 
 FAST ................................................ 1.5" 
 DWELL AT EACH OR ALTERNATE TABLE REV. ..... 0 - 2-1/2 SEC. 
 TABLE SWIVEL, SCALES FOR ANGULAR SETTING ...... 8-1/4 DEG. 
 SCALES-TAPER PER FT. .............................. 3-1/2" 
 
  MAX. TRAVEL OF WHEELSLIDE ............................ 5" 
 CROSSFEED HANDWHEEL GRAD. ....................... 0.00002" 
 AUTOMATIC CROSS FEED, REDUCTION IN DIAMETER 
  OR WORK AT EACH OR ALTERNATE REVERSALS .. 0.0001" - .003" 
 HAND FEED PER REV. OF HANDWHEEL: 
 SLOW ................................................ 0.1" 
 FAST ................................................ 0.3" 
 
  TAILSTOCK SPINDLE TAPER .........................#7 JARNO 
 TAILSTOCK SPINDLE TRAVEL ............................ 5/8" 
 
  APPROXIMATE WEIGHT ............................ 5,100 LBS 
 
 MACHINE FEATURES:
 DUAL RIGHT OR LEFT END WHEEL MOUNTING 
 SWIVELLING AT WHEEL SPINDLE HEAD OR AT THE WHEEL 
  SLIDE PERMITS ANY COMPOUND SETTING REQUIRED IN 
  COMBINATION STRAIGHT AND TAPER GRINDING, 
  EXTERNAL OR INTERNAL. 
 
 INFEED HANDWHEEL GRADUATED TO READ TO 0.000020" 
 HYDRAULIC TABLE TRAVERSE 
 AUTO INFEED OF WHEELHEAD @ TABLE REVERSALS 
 ADJUSTABLE TABLE DWELL
 DUAL LIVE/DEAD WORKHEAD SPINDLE
 WORKHEAD HAS INFINITELY VARIABLE SPINDLE SPEEDS
 SELF-CONTAINED HYDRAULIC SYSTEM
 OIL CHILLER UNIT (FAN COOLED)
  
  
 EQUIPPED WITH:
 SWING DOWN INTERNAL GRINDING ATTACHMENT W/SPINDLE
 4-JAW CHUCK MOUNTED ON WORKHEAD
 3POINT STEADY REST
 TABLE MOUNTED DRESSER
 EXTERNAL COOLANT SYSTEM
 MOTORS ARE 3/60/230-460 VOLTS
  
 
 ** MACHINE WAS USED IN A SCHOOL. THIS MACHINE
    IS UNUSUALLY PRISITINE, WITH VERY LOW HOURS! **
 
  ** INSPECT UNDER POWER IN OUR HARRISON, NJ WAREHOUSE ** 
 ** NEARLY NEW CONDITION FROM A SCHOOL! **