Roper G12-436 - Manual (Page 16)

GEAR REDUCTION RATIOS AND CAPABILITIES
Gear reducers are rated to transmit up to the horsepowers (kW) shown below. Three interchangeable gear ratios are
available.
3611 THRU 4722 PUMPS 60 Hz OPERATION 50 Hz OPERATION
NUMBER OF TEETH
GEAR
RATIO
HIGH
SPEED
GEAR
LOW
SPEED
GEAR
MOTOR
RPM
PUMP
RPM
MAX HP
ALLOWED
MOTOR
RPM
PUMP
RPM
MAX KW
ALLOWED
4.60 15 69 126 2.8 105 1.7
3.94 17 67 147 3.3 123 2.2
3.20 20 64
580
181 4.0
485
152 2.7
4.60 15 69 189 4.2 159 2.8
3.94 17 67 221 4.9 185 3.3
3.20 20 64
870
272 6.1
760
228 4.0
4.60 15 69 250 5.5 206 3.6
3.94 17 67 290 6.5 241 4.3
3.20 20 64
1150
360 8.0
950
296 5.3
4.60 15 69 380 8.5 315 5.6
3.94 17 67 445 10.0 368 6.6
3.20 20 64
1750
545 10.0
1450
453 6.6
4.60 15 69 3450 750 10.0 2850 620 6.6
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