Technical Specifications - DNFH Gear Motors_Final.docx

DOCX document 375 KB Posted Mar 23, 2026

Attached to: DWA Gear Motors
Solicitation number: W912EF26QA027
Issued by: Department of the Army Corps of Engineers Engineering District Walla Walla

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Written by GovTribe AI · Mar 23, 2026

This is a Technical Specifications document for gear motors required by the U.S. Army Corps of Engineers, Walla Walla District for the Dworshak National Fish Hatchery in Ahsahka, Idaho. The solicitation requires seven 1.5 horsepower right angle gear motors (CLIN 001) and three 0.5 horsepower right angle gear motors (CLIN 002), with delivery required within eight weeks of contract award to the specified address at Dworshak Project during normal business hours (Monday-Thursday, 6:30 AM to 5:00 PM, excluding federal holidays).

The 1.5 horsepower motors must operate on 460 VAC, 3-phase, 60 Hz at 1700-1800 RPM with TEFC enclosure, premium efficiency, inverter duty rating, continuous duty rating, and integral encoder. Each unit requires a brake with minimum 20 NM torque rating, junction box with NPT connection, and metal nameplate. The paired gearbox must have minimum 1750 RPM input shaft rating, 2 horsepower input capacity, output shaft RPM between 56-62, minimum 1950 in-lbs output torque, 1.5-inch solid output shaft with 5/16-inch keyway, heavy-duty bearings, 1400 LBS overhung load capacity, cast iron housing with powder coating, EAL oil lubrication with desiccant breather, 1.7 service factor, and IP55 ingress protection. The 0.5 horsepower motors have identical electrical and motor specifications but require lower brake torque (5 NM minimum), smaller gearbox input (1 horsepower), fixed 30 RPM output, 1450 in-lbs output torque, 1-inch output shaft with 1/4-inch keyway, and identical encoder requirements. Both motor types must include integral incremental encoders with M12 connection, 1024 pulse per revolution, line driver 7272 interface, 5-30 VDC operating voltage, 300 kHz maximum frequency, 6000 MIN-1 maximum speed, -20 to 80 degrees Celsius temperature range, IP66 ingress protection, and 150 mA maximum current consumption. Contractors must submit manufacturer data sheets, lubricant specifications, and drawings in the pre-award package, with post-award delivery including operation and maintenance manuals. All items carry a minimum one-year manufacturer warranty for workmanship and material defects.

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DWORSHAK NATIONAL FISH HATCHERY

ITEMS LIST

GEAR MOTORS

ITEM

DESCRIPTION

QTY

UOM

PRICE

EXT PRICE

001

1 1/2 Horsepower Right Angle Gear Motors

Each

002

1/2 Horsepower Right Angle Gear Motors

Each

DWORKSHAK NATIONAL FISH HATCHERY

TECHNICAL SPECIFICATIONS

GEAR MOTORS

1.0 INTENT

The following specifications pertain to the purchase of a new gear motors for the U.S. Army Corps of Engineers, Walla Walla District, Dworshak National Fish Hatchery, Ahsahka, Idaho.

2.0 SCOPE

The successful Offeror shall be required to provide seven (7) 1.5 horsepower gear motors and three (3) 0.5 horsepower gear motor in accordance with Section 3.0 and Section 4.0 below and ship the gearmotors to the Dworshak Project as required in the Shipment and Delivery section.

3.0 1 ½ HORSEPOWER RIGHT ANGLE GEAR MOTOR (CLIN 001)

The Contractor shall supply seven (7) 1.5 horsepower right angle gear motors meeting the following requirements:

3.1 Motor Requirements

3.1.1 The motors shall operate on 460 VAC, 3-phase, 60HZ.

3.1.2 The motors shall operate at a minimum of 1700 RPM and a maximum of 1800RPM

3.1.3 The motors shall be 1 ½ Horsepower

3.1.4 The motors shall be equipped with a brake that operates on 460 VAC, 1-Phase, 60HZ, and shall be equipped with a hand release lever located in position 1(See Figure 1 Below). The brake shall have a minimum torque rating of 20-NM.

3.1.5 The motor enclosure type shall be TEFC.

3.1.6 The motors shall be premium efficiency and inverter duty rated

3.1.7 The motors shall be rated for continuous duty.

3.1.8 The motors shall be equipped with a junction box that has a ¾” NPT connection point. The junction box shall be in position 2(See Figure 2 below). The conduit entry shall be in location 3. (See figure 3 Below)

3.1.9 The motors shall be equipped with an engraved metal nameplate indicating all pertinent information to the product.

3.1.10 The motor shall directly couple to the gearbox

3.1.11 The motor shall be equipped with an integral encoder.

3.1.12 The motors shall have a Service Factor of 1.15.

3.1.13 The motors shall have class F insulation.Figure 1: Brake Release Handle Location

Figure 2: Terminal Box LocationFigure 3: Conduit Entry Location

3.2 Gearbox Requirements

3.2.1 The gearboxes shall have a minimum input shaft rating of 1750 RPM.

3.2.2 The gearboxes shall have a minimum input horsepower rating of 2 horsepower

3.2.3 The gearboxes shall have a minimum output shaft RPM of 56 and maximum RPM of 62.

3.2.4 The gearboxes shall have a minimum output torque capacity of 1950 in-lbs.

3.2.5 The gearbox shall be foot mounted, in the M1, right angle position. The output shaft shall be located on side A. (See Figure 4 Below)

3.2.6 The gearbox shall be oil lubricated and equipped with a desiccant style breather vent. The lubrication selected shall be an EAL lubricant.

3.2.7 The output shaft of the gearboxes shall be of solid construction and have a nominal diameter of 1.5” with an exposed length of 2.75”. The keyway shall be designed for use with a 5/16” keyway.

3.2.8 The gearboxes shall be equipped with heavy-duty bearings.

3.2.9 The gearboxes shall have a minimum rated overhung load capacity of 1400 LBS.

3.2.10 The gearbox housing shall be constructed of cast iron and powder coated to protect against corrosion.

3.2.11 The gearbox output shaft shall be equipped with a standard seal.

3.2.12 The gearbox shall have a minimum service factor of 1.7.

3.2.13 The gearbox shall have a minimum ingress protection of IP55.

Figure 4: Gearbox Mounting Orientation

3.3 Encoder Requirements

3.3.1 The encoder shall have an M12 Connection plug attachment point. (See figure 5 for pin arrangement)

3.3.2 The encoders shall be the incremental type.

3.3.3 The encoders shall have a pulse per revolution of 1024.

3.3.4 The encoders interface shall be line driver 7272.

3.3.5 The encoders shall have an operating voltage of 5-30 VDC

3.3.6 The encoders shall have a maximum operating frequency of 300 kHz.

3.3.7 The encoders shall have a max operating speed of 6000 MIN-1

3.3.8 The encoders shall be operable in temperatures from -20 to 80 degrees Celsius.

3.3.9 The encoders shall have a minimum ingress protection class of IP66

3.3.10 The encoders shall have a maximum current consumption of 150 mA.

Figure 5: M12 Pin Arrangement

4.0 1/2 HORSEPOWER RIGHT ANGLE GEAR MOTOR SPECIFICATIONS (CLIN 002)

The Contractor shall supply three (3) 0.5 horsepower right angle gear motors meeting the following requirements:

4.1 Motor Requirements

4.1.1 The motors shall operate on 460 VAC, 3-phase, 60HZ.

4.1.2 The motors shall operate at a minimum of 1700 RPM and a maximum of 1800RPM

4.1.3 The motors shall be ½ Horsepower

4.1.4 The motors shall be equipped with a brake that operates on 460 VAC, 1-Phase, 60HZ, and shall be equipped with a hand release lever located in position 1(See figure 1 above). The brake shall have a minimum torque rating of 5-NM.

4.1.5 The motor enclosure type shall be TEFC.

4.1.6 The motors shall be premium efficiency and inverter duty rated

4.1.7 The motors shall be rated for continuous duty.

4.1.8 The motors shall be equipped with a junction box that has a ¾” NPT connection point. The junction box shall be in position 2. (See figure 2 above). The conduit entry shall be in location 3. (See figure 3 above)

4.1.9 The motors shall be equipped with an engraved metal nameplate indicating all pertinent information to the product.

4.1.10 The motor shall directly couple to the gearbox

4.1.11 The motor shall be equipped with an integral encoder.

4.1.12 The motors shall have a Service Factor of 1.15.

4.1.13 The motors shall have class F insulation.

4.2 Gearbox Requirements

4.2.1 The gearboxes shall have a minimum input shaft rating of 1750 RPM.

4.2.2 The gearboxes shall have a minimum input horsepower rating of 1 horsepower

4.2.3 The gearboxes shall have an output shaft RPM of 30.

4.2.4 The gearboxes shall have a minimum output torque capacity of 1450 in-lbs.

4.2.5 The gearbox shall be foot mounted, in the M1, right angle position. The output shaft shall be located on side A. (See figure 4 above)

4.2.6 The gearbox shall be oil lubricated and equipped with a desiccant style breather vent. The lubrication selected shall be an EAL lubricant.

4.2.7 The output shaft of the gearboxes shall be of solid construction and have a nominal diameter of 1” with an exposed length of 2.125”. The keyway shall be designed for use with a 1/4” keyway.

4.2.8 The gearboxes shall be equipped with heavy duty bearings

4.2.9 The gearboxes shall have a minimum rated overhung load capacity of 1400 LBS.

4.2.10 The gearbox housing shall be constructed of cast iron and powder coated to protect against corrosion.

4.2.11 The gearbox output shaft shall be equipped with a standard seal.

4.2.12 The gearbox shall have a minimum service factor of 1.7.

4.2.13 The gearbox shall have a minimum ingress protection of IP55.

4.3 Encoder Requirements

4.3.1 The encoder shall have an M12 Connection plug attachment point. (See figure 5 for pin arrangement)

4.3.2 The encoders shall be the incremental type.

4.3.3 The encoders shall have a minimum pulse per revolution of 1024.

4.3.4 The encoders interface shall be line driver 7272.

4.3.5 The encoders shall have an operating voltage of 5-30 VDC

4.3.6 The encoders shall have a maximum operating frequency of 300 kHz.

4.3.7 The encoders shall have a max operating speed of 6000 MIN-1

4.3.8 The encoders shall be operable in temperatures from -20 to 80 degrees Celsius.

4.3.9 The encoders shall have a minimum ingress protection class of IP66

4.3.10 The encoders shall have a maximum current consumption of 150 mA.

5.0 DELIVERABLES

5.1 Pre-Award

The contractor shall provide manufacturer data sheets, lubricants, drawings, and lists of the proposed items. Any items not provided by the contractor as a part of the pre-award package will be viewed as technically unacceptable and not considered for award.

5.2 Post-Award

The contractor shall provide manufacturer data sheets, drawings, lists, and Operation and Maintenance manuals of the supplied items.

6.0 WARRANTY

Each item shall be covered by a minimum one (1) year manufacturer’s warranty for workmanship and material defects.

7.0 SHIPMENT AND DELIVERY

All items shall be delivered FOB to Dworshak Project within eight (8) weeks of contract award. The Contractor shall be responsible for packing and shipping the components in a manner that will preserve integrity and ensure undamaged and complete arrival to Dworshak Dam. Deliveries shall only be made during normal Dworshak Project business hours, Monday–Thursday 6:30AM–5:00PM, excluding federal holidays.

All shipments shall be delivered to:

USACE Dworshak Project Attn: Contract Performance Specialist 1428 Northfork Drive Ahsahka, ID 83520 Ph. (208) 476-1296 Fax (208) 476-1227 image3.png image4.png image5.png image1.png image2.png

File details come from the government source that posted it. Updated Mar 23, 2026.