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Bridge Mounted Dual Concentric Output Shaft Drives for Clarifiers & Thickeners

Bridge Mounted Drive Units: Applications & Overview
Drive unit has two concentric output drive shafts Used on solids contact and flocculating clarifiers or softeners Rake drive section is a low-speed, high-torque, totally enclosed gear drive with positive overload protection Turbine drive section is a heavy-duty, higher speed, totally enclosed gear drive The drive unit is supported by a bridge completely spanning the tank The drive unit has a central output shaft to drive the rakes Used in industrial, municipal and mining clarifiers and thickeners Typically used on tank sizes from 10 to 100 ft (3 to 30 m) in diameter
Bridge Mounted Drive Units: Primary Features
Forged alloy steel main gears and pinions designed for 20 years of life calculated per AGMA 2001-C95 Precision, four-point-contact main bearing, with a 10-year warranty Rake drive has accurate torque gauge calibrated in ft-lbf, N-m or any units desired Variable speed turbine drive is standard Alarm and cutoff switches and maximum torque limiting via shear pin or pressure relief valve Dry well lubrication on turbine output Designed for minimum maintenance with permanently lubricated rake intermediate gearbox

BRIDGE MOUNTED UNITS - Rake Torque Capacities							Turbine Drive Power
Model	Continuous		Maximum Overload		Yield		Allowable Horsepower	Max Speed RPM
	ft-lb	N-m	ft-lb	N-m	ft-lb	N-m	Allowable Horsepower	Max Speed RPM
SX-A*-D25	3,000	4,100	6,000	8,200	8,100	11,000	10	56
SX-B*-D25	6,000	8,200	12,000	16,400	16,200	22,000	10	56
SX-C*-D25	10,000	14,000	20,000	28,000	27,000	36,500	10	56
S25-A*-D25	14,000	19,000	28,000	38,000	54,000	73,000	20	56
S34-A*-D34	18,500	25,000	37,000	50,000	120,000	163,000	25	39
S34-B*-D34	27,000	36,500	54,000	73,000	120,000	163,000	25	39
S44-B*-D44	35,000	47,500	70,000	95,000	195,000	264,000	50	29
S44-C*-D44	47,000	64,000	94,000	128,000	195,000	264,000	50	29
S60-C*-D60	65,000	88,000	130,000	176,000	440,000	597,000	75	21
S60-D*-D60	125,000	169,500	250,000	339,000	440,000	597,000	75	21
S44-B*2-D44	70,000	95,000	140,000	190,000	390,000	528,000	50	29
S44-C*2-D44	94,000	128,000	188,000	256,000	390,000	528,000	50	29
S60-C*2-D60	130,000	176,000	260,000	352,000	880,000	1,194,000	75	21
S60-D*2-D60	250,000	339,000	500,000	678,000	880,000	1,194,000	75	21

SX-Series Details/Dimensions

Item	Description
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.	Primary reducer, rake Electric motor, rake Torque gauge box Lift lug Drain plug Turbine pinion Speed reducer, turbine Electric motor, turbine Planetary gearbox, rake Turbine gear-bearing Main housing

SX-D25 Series Drive Unit Details

Model	A		Rake Output Flange	Turbine Output Flange	Weight
	in	mm	in	in	lb	kg
SX-A*-D25	7.935	201.5	4"	10"	3,000	1,361
SX-B*-D25	7.935	201.5	4"	10"	3,250	1,477
SX-C*-D25	10.250	260.4	4" with oversized 15/16" dia holes	10"	3,500	1,591

*Metric Flanges are available for all models as required.

SD-Series Details/Dimensions

Item	Description
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14.	Machine frame Main gear-bearing, turbine Pinion, rake Planetary gearbox, rake Torque gauge Primary speed reducer, rake Electric motor, rake Main gear-bearing, rake Electric motor, turbine Primary speed reducer, turbine Pinion, turbine Pinion support bearing, turbine Drive hub, turbine Drive hub, rake

SD Series Drive Unit Details

Model	A		B		C		D		E		Rake Flange	Turbine Flange	Weight
	in	mm	in	mm	in	mm	in	mm	in	mm			lb	kg
S25-A*-D	40	1,016	48	1,219	14	356	4	102	8	203	5"	10"	4,600	2,087
S34-A*-D	48	1,219	56	1,422	14.5	368	6	152	10	254	8"	16"	6,800	3,084
S34-B*-D	52	1,321	60	1,524	17.75	451	6	152	10	254	8"	16"	7,800	3,538
S44-B*-D	60	1,524	68	1,727	17.75	451	6	152	10	254	10"	20"	8,400	3,810
S44-C*-D	64	1,626	72	1,829	19.75	502	6	152	10	254	10"	20"	9,000	4,082
S60-C*-D	76	1,930	84	2,134	21	533	8	203	14	356	16"	30"	13,400	6,078
S60-D*-D	80	2,032	88	2,235	26	660	8	203	14	356	16"	30"	15,000	6,804

*Metric Flanges are available for all models as required.

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Clarifiers / Drive Units > Bridge Mounted Dual Concentric Output Shaft Drives for Clarifiers & Thickeners

Bridge Mounted Drive Units: Applications & Overview

Bridge Mounted Drive Units: Primary Features

SX-Series Details/Dimensions

SD-Series Details/Dimensions