Heald 81 I.D. GRINDER

81 HEALD I.D. GRINDER

Maximum length of hole ground...................... 3"
Maximum outside diameter work: on center type...... 3 1/2"
hi center type...... 4 1/2"
Minimum diameter of hole ground, not less than 1 1/2" recommended
for smaller hoes refer to Worcester
Maximum included angle of taper
(Standard sizematic only).......................... 30
Center of wheel spindle from floor................. 45 3/8"
Regulating roll (standard diameter).............. 9" can be ground down to 7 3/4"

SPEEDS AND FEEDS:
Table speeds unlimited between 0 - 28 ft. per minute
Maximum table travel............................... 11"
One turn of crossfeed handwheel............... .060" on diameter
Wheel wear compensation........ 0 to .0044" on diameter of wheel
Maximum power cross feed...................... .047" on diameter
Run-in cross feed........................ 0 to .010" on diameter
Roughing cross feed...................... 0 to .047" on diameter
Finishing feed on sizematic only.... .0004" to .0032" on diameter

DRIVES:
Main drive motor 7 1/2 HP - 1800 RPM, 60 cycles AC
Regulating roll motor with speed reducer..... 1/4 HP, 60 cycles AC

GENERAL DATA:
Capacity of oil tank............................... 15 gallons
Length and width of base on floor........ 57 3/4" x 31 5/8"
Floor space (total) without cutting fluid tank. 65 1/2" x 63 1/8"
Weight of machine net.............................. 5,300 lbs.
Weight machine crated.............................. 6,585 lbs.
Weight machine boxed............................... 6,980 lbs.