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NEMA 56C Speed Reducers - Brother Gearmotors

.

NEMA 56C Gear ReducersBrother Gearmotors - NEMA 56C Speed Reducers for 1/2 HP and 1 HP Motors

The gears in these NEMA 56C speed reducers are high strength, maintenance free and can be mounted in any direction with their slip fit "O" ring design. Low to high reduction ratios, flange mount or foot mount types, right angle or hollow shaft right angle types available. Fit NEMA 56C AC motors, brushless DC motors and brushed DC motors.

  • Inline Helical Gear Speed Reducers
  • Right-Angle Hypoid Gear Speed Reducers

High Torque NEMA 56C Speed Reducers

These high torque NEMA 56C speed reducers offer superior efficiency by using Helical and Hypoid gears making it possible to replace spur and worm gearboxes and actually receive greater torque at the driven shaft..

Three Gear Types are Available:

Parallel Shaft (Inline)
Speed Reducer
Right-Angle
Speed Reducer
Right-Angle Hollow Shaft
Speed Reducer

NEMA 56C Inline Gear Reducer
Flange Mount

NEMA 56C Inline Gear Reducer
Foot Mount

NEMA 56C Right-Angle Gear Reducer

 

NEMA 56C Right Angle Hollow Bore Gear Reducer

 

 

Brother Helical Gears

High Torque Brother Gearmotor Helical Gearing

NEMA 56C Parallel Shaft (Inline) Speed Reducer - GTR Series Helical Gearing (G3)

NEMA 56C Gear Reducer G3 SeriesLightweight and Compact

Die cast aluminum gear housings make these speed 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.

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.

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 Gear 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.

Right-Angle Hypoid / Helical Efficiency Comparison

Brother Hypoid Gear Efficiency

Input Speed - 1800 RPM
Hypoid - Grease Lubrication
Worm - Oil Lubrication

The graph above shows actual measured efficiency, 1/2 HP to 3 HP. Because of the high efficiency of the Brother Hypoid/Helical combination there is no self-locking in the back drive direction.

NEMA 56C Right-Angle Gear Redcuer - GTR Series Hypoid Gearing
(H2)

NEMA 56C Gear Reducer - H2 Series

Longer Life

Hypoid speed 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.

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.

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 caronitriding. 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 speed reducers 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.

 

Brother Hypoid Gears

Brother Hypoid/ Helical Gearing

NEMA 56C Right-Angle Hollow Shaft Speed Reducer - GTR Series Hypoid / Helical Gearing (F3)

NEMA 56C Gear Reducer - F3 Series

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.

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.

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 speed reducers 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.

Product Lineup

Type

Output Power

Gear Type

Gear Ratios

Rated Torque at 1800 r/min

Maximum Input Speed

NEMA 56C Parallel Shaft Gear Reducer

Parallel Shaft (Inline) NEMA 56C Speed Reducer

Flange Mount

1/2 HP Helical Gear 5:1 ~
200:1

89 ~
3,457 lb-in

3600 r/min
1 HP Helical Gear 5:1 ~
200:1
167 ~
6,481 lb-in
3600 r/min

NEMA 56C Parallel Shaft Gear Reducer

Parallel Shaft (Inline) NEMA 56C Speed Reducer

Foot Mount

1/2 HP Helical Gear 5:1 ~
200:1
89 ~
3,457 lb-in
3600 r/min
1 HP Helical Gear 5:1 ~
200:1
167 ~
6,481 lb-in
3600 r/min

NEMA 56C Right-Angle Hollow Shaft Gear Reducer
NEMA 56C
Right-Angle Hollow Speed Reducer

Flange Mount

1/2 HP Hypoid Gear 5:1 ~
240:1
81 ~
2,390 lb-in
3600 r/min
1 HP Hypoid Gear 5:1 ~
240:1
159 ~
4,903 lb-in
3600 r/min

Type

Output Power

Gear Type

Gear Ratios

Rated Torque at 1800 r/min

Maximum Input Speed

NEMA 56C Right-Angle Gear Reducer
NEMA 56C
Right-Angle Speed Reducer
(Left Shaft)

Foot Mount
1/2 HP Hypoid Gear 5:1 ~
240:1
85 ~
3,819 lb-in
3600 r/min
1 HP Hypoid Gear 5:1 ~
240:1
159 ~
6,770 lb-in
3600 r/min

NEMA 56C Right-Angle Gear Reducer
NEMA 56C
Right-Angle Speed Reducer
(Right Shaft)

Foot Mount
1/2 HP Hypoid Gear 5:1 ~
240:1
85 ~
3,819 lb-in
3600 r/min
1 HP Hypoid Gear 5:1 ~
240:1
159 ~
6,770 lb-in
3600 r/min

NEMA 56C Right-Angle Gear Reducer
NEMA 56C
Right-Angle Speed Reducer
(Double Shaft)

Foot Mount
1/2 HP Hypoid Gear 5:1 ~
240:1
85 ~
3,819 lb-in
3600 r/min
1 HP Hypoid Gear 5:1 ~
240:1
159 ~
6,770 lb-in
3600 r/min

View all NEMA 56C Speed Reducers

Allowable Torque

Gear reducers can be used with several types of motors. Use the chart and calculations below to determine the allowable shaft output torque, overhung load (OHL) an allowable inertia moment (GD2).

The values of output shaft torque in the product lineup table are the values when the input rotation speed is 1800 rpm. In case of using the motor with a different rotation speed, the output allowable torque can be obtained by multiplying the torque correction coefficient in the diagram below.

NEMA 56C Gear Reducer Allowable Torque

NEMA 56C Gear Reducer Allowable Inertia Moment

 


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