KII Series Single-Phase AC Motors & Gear Motors

High Torque Three-Phase Brother Gear Motors

Brother Gearmotors Three-Phase AC Motors & Gear Motors for Inverters

These AC gear motors feature superior efficiency from hypoid or helical gears while offering greater torque output thereby allowing for smaller motors and greater energy saving.

The gears in these AC gear motors are high strength, maintenance free and can be mounted in any direction with their slip fit "O" ring design. High reduction ratios, flange mount or foot mount types, right angle or hollow shaft right angle types available.

  • ie3 Premium Efficiency (1 - 3 HP motors)
  • Class F Insulation / Inverter Duty
  • IP65 Types
  • Brake Types Available
  • Three-Phase 208/230/460 VAC
ie3 Motors

AC Gear Motor Lineup

Output Power

Available Options

Gear Type

Power Supply

Permissible Torque*

1/2 HP AC Gear Motors

400 W (1/2 HP) AC Gear Motors

Electromagnetic Brake
IP65 Type

Parallel Shaft (Foot Mount)

Three-Phase 208/230/460

89 ~ 3,457 lb-in

Parallel Shaft (Flange Mount)

Right-Angle Hollow Shaft

81 ~ 2,390 lb-in

Right-Angle Solid Shaft

85 ~ 3,819 lb-in

1 HP AC Gear Motors

1 HP AC Gear Motors

Electromagnetic Brake
IP65 Type

Parallel Shaft (Foot Mount)

Three-Phase 208/230/460

168 ~ 6,479 lb-in

Parallel Shaft (Flange Mount)

Right-Angle Hollow Shaft

159 ~ 4,903 lb-in

Right-Angle Solid Shaft

159 ~ 6,770 lb-in

2 HP AC Gear Motors

2 HP AC Gear Motors

Electromagnetic Brake
IP65 Type

Parallel Shaft (Foot Mount)

Three-Phase 208/230/460

336 ~ 10,887 lb-in

Parallel Shaft (Flange Mount)

Right-Angle Hollow Shaft

301 ~ 11,188 lb-in

Right-Angle Solid Shaft

321 ~ 10,838 lb-in

3 HP AC Gear Motors

3 HP AC Gear Motors

Electromagnetic Brake
IP65 Type

Parallel Shaft (Foot Mount)

Three-Phase 208/230/460

496 ~ 9,559 lb-in

Parallel Shaft (Flange Mount)

Right-Angle Hollow Shaft

451 ~ 10,232 lb-in

Right-Angle Solid Shaft

468 ~ 10,751 lb-in

*Torque and Speed vary based on input voltage and frequency, please review product specifications for details.


 

ie3 Premium Efficiency Gear Motors (1 - 3 HP Motors) Saves Significant Operating Costs

The new ie3 premium efficiency gear motors cost less to operate and demonstrate clear benefits when running for long periods of time (when compared to ie1 standard efficiency gear motors).

Benefits of using Premium Efficiency ie3 motor when compared to standard ie3 motor:

  • Helps improve overall plant efficiency by reducing energy costs
  • Helps increase ROI and long term savings
  • Minimizes maintenance and helps improve overall operations
  • Helps increase flexibility due to the wide speed range (stock reduction)
  • Produces less noise and runs cooler with less mechanical stresses
  • Environmentally friendly-RoHS compliant
ie3 Efficiency

High Efficiency Gear Motors

High efficiency gear motors feature Hypoid gearing technology that can maintain efficiency above 85% throughout the motor's wide speed range. Compared to commonly used worm gears' lower efficiency, this can result in massive energy savings. Lower cost to operate - applications running for long periods will demonstrate clear benefits.

The ie3 gear motors have a wide speed range that does not suffer in efficiency from the motor or gearbox. These gear motors can be mounted in any direction because they are sealed for life with grease.

Electrocoat Paint
The ie3 gear motors also feature an acrylic Electrocoat paint that provides total coverage of the gearmotor. Similar to how the frames of cars are painted, each individual outer facing part is completely dipped in electrically charged paint. This offers complete coverage of the outer body which helps prevent cleaners from penetrating and chipping paint. This acrylic paint also has a higher level of hardness which will avoid scratches and scrapes from chipping the paint. Lastly, the paint is FDA approved to have incidental food contact specifications.

IP65 Type
The ie3 gear motors have been made to withstand harsh environments. Available IP-65 ratings allow these gearmotors to be cleaned with cleansers for sanitation without affecting the motors' performance.

High Effiiciency Gears

ie3 Comparison

High Torque AC Gear Motors

These high torque AC gear motors offer superior efficiency by using Helical and Hypoid gears making it possible to replace spur and worm gearbox/motor combinations with smaller HP AC gear motors and actually receive greater torque at the driven shaft. With smaller motor HP required less electrical current is needed, resulting in lower energy costs.

Three Gear Types are Available:

Parallel Shaft (Inline) 
AC Gear Motor

Right-Angle 
AC Gear Motor

Right-Angle Hollow Shaft 
AC Gear Motor

Brother G3 Gear Motor - Flange Mount
Flange Mount

Brother G3 Gear Motor - Foot Mount
Foot Mount

Brother H2 Gear Motor

 

Brother F3 Gear Motor

 

IP65 Types Available

IP65 washdown AC gear motors offer superior resistance to water ingress and harsh environments used in food processing plants.

  • Helps protect against pressure jets of water
  • Helps protect against dust and harsh environments
  • Terminal Boxes are specially designed, sealed and gasketed. Complete with stainless steel IP65 cord grip.
IP65 Type AC Motors

Brake Types Available

The brake system for these AC gear motors uses vibration damping sheet steel for the armature, which dramatically reduces noise associated with the brake.

Performance Examples with Third-party Inverter (YASKAWA)

Inverter Performance

The torque characteristics of the motor differ according to the VFD brand and type used.

 

Parallel Shaft AC Gear Motor - Brother Gearmotors Helical Gearing (G3 Series)

Parallel Shaft Foot Mount Gear

Lightweight and Compact

Die cast aluminum gear housings and motors make these AC gear motors and reducers light in weight, allowing engineers to design more economical mounting provisions.

Longer Life

Compared to a spur gear of approximately the same pitch diameter, Helical gears can transfer high loads at greater speeds. This is due to the gradual engagement of the teeth and smooth transfer of the load.

Helical Gears

Maintenance Free

High-quality synthetic grease is used in all gearboxes. They are filled at the factory and do not require maintenance filling or level checks. This saves valuable time at set up and eliminates concern for costly oil disposal required by the EPA.

High Durability Finish

Electrocoat paint is standard for these AC gear motors and provides higher durability and superior resistance vs. traditional painting or powder coat finishes and can also be considered for harsher environments.

Mount in Any Direction

These gearboxes are sealed with machine "slip" fit "O" rings and double lip spring shaft seals on both the motor and input shaft and output shaft driver. Thus, the gear motors can be mounted in any conceivable direction without concern for the position of a breather plug.

Spur vs. Helical Gear

These motors feature Helical Gears made of chromium molybdenum steel that has undergone precision carbonitriding. These Helical Gears outperform common spur gears.

Helical vs. Spur Gear

Right-Angle Hollow Shaft AC Gear Motor - Brother Gearmotors Hypoid / Helical Gearing (F3 Series)

Right-Angle Hollow Shaft Gear Motor

More Efficient / Longer Lasting

Hypoid gearing is up to 80% more efficient than worm gears. The all steel Hypoid/Helical combination had much better wear properties than softer bronze worm gearing and last longer and run cooler than worm gears.

Hypoid Gear

High Reductions / Small Size

Gear reductions up to 1500:1 are available in most sizes. Hypoid gearing makes the high reduction significantly more compact and lightweight compared to worm/worm and helical/worm designs.

Mount in Any Direction

These gearboxes are sealed with machine "slip" fit "O" rings and double lip spring shaft seals on both the motor and input shaft and output shaft driver. Thus, these gear motors can be mounted in any conceivable direction without concern for the position of a breather plug.

High Durability Finish

Electrocoat paint is standard for these gear motors and provides higher durability and superior resistance vs. traditional painting or powder coat finishes and can also be considered for harsher environments.

Maintenance Free

High-quality synthetic grease is used in all gearboxes. They are filled at the factory and do not require maintenance filling or level checks. This saves valuable time at set up and eliminates concern for costly oil disposal required by the EPA.

Hypoid Gearing

Hypoid Gears are made of chromium molybdenum steel that has undergone precision carbonitriding. The superior efficiency, gear materials and heat treatment allows engineers to design-in the most compact gearmotor per output torque. These unique right-angle type gear motors have much higher power transmission efficiency than conventional worm gears. Growing demand is due to its COMPACTNESS, HIGH EFFICIENCY, and superior wear life, which meet the latest primary requirements for industrial applications.

Right-Angle AC Gear Motor - Brother Gearmotors Hypoid Gearing (H2 Series)

Right-Angle Solid Shaft Gear Motor

Longer Life

Hypoid gear motors and reducers use hardened steel gears throughout. This give Hypoid gearing far superior wear life compared to worm gears which use softer bronze on the output gear.

Hypoid Gear Efficiency

High Reductions / Small Size

Gear reductions up to 1200:1 are available in most sizes. Hypoid gearing makes the high reduction significantly more compact and lightweight compared to worm/worm and helical/worm designs.

Mount in Any Direction

These gearboxes are sealed with machine "slip" fit "O" rings and double lip spring shaft seals on both the motor and input shaft and output shaft driver. Thus, the gear motors can be mounted in any conceivable direction without concern for the position of a breather plug.

High Durability Finish

Electrocoat paint is standard for these gear motors and provides higher durability and superior resistance vs. traditional painting or powder coat finishes and can also be considered for harsher environments.

Maintenance Free

High-quality synthetic grease is used in all gearboxes. They are filled at the factory and do not require maintenance filling or level checks. This saves valuable time at set up and eliminates concern for costly oil disposal required by the EPA.

Hypoid Gearing

Hypoid Gears are made of chromium molybdenum steel that has undergone precision carbonitriding The superior efficiency, gear materials and heat treatment allows engineers to design-in the most compact gearmotor per output torque. These unique right-angle type gear motors have much higher power transmission efficiency than conventional worm gears. Growing demand is due to its COMPACTNESS, HIGH EFFICIENCY, and superior wear life, which meet the latest primary requirements for industrial applications.

Inverter / VFD

Inverter

With its high functionality, compact design, simple operation and global compatibility, the new FRENIC-Mini (C2) elevates the performance of a wide range of devices and equipment--including conveyors, fans, pumps, centrifugal separators, and food processing machines--to give you the system integration, energy efficiency, reduced labor, and lower overall costs you're looking for.

  • Single-Phase 115 VAC or 230 VAC input, Three-Phase 230 VAC or Three-Phase 460 VAC input.

 

Part Number Code

*Products ending in "X" are specials. Contact your original supplier for details.

Part Number Code

 

CAD / Manual Search

To locate product CAD and Operator Manuals please search using the product Item Number.


Videos

Packaging Application

Labeling Application

Injection Application

AC Motor & Fan Application

Inverter / VFD

 

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