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Gear reducers
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... steel input gears as well as a modified lubrication are available for applications requiring very high torque, vacuum, or higher temperature compatability. For applications requiring medium to high torque FAULHABER ...
FAULHABER Drive Systems

Spur Gearheads and Spur Gearheads zero backlash FAULHABER offers a special version of a spur gearhead with zero backlash. The backlash is reduced to a minimum by counter-rotating the ...
FAULHABER Drive Systems

Power: 2, 5, 2.5, 3.2 W
Backlash: 1.1 °
Gear ratio: 33 unit - 1,437 unit
... and sudden load changes, and operates with high efficiency. The gearhead can be combined with a wide range of motors. The new size leverages the proven design principle of the GPT gears, reliably transmitting ...
FAULHABER Drive Systems

Rotational speed: 6,000 rpm
Backlash: 0.17 °
Gear ratio: 9 unit - 100 unit
The TQW series is part of the BlueRoll product platform for Automated Guided Vehicles (AGVs) and Autonomous Mobile Robots (AMRs). It is built to support high loads and to be mounted directly on the chassis, in limited installation spaces. ...
Bonfiglioli

... vehicle frame - Long service life and low noise emissions, thanks to separation of gear and impeller - Easy wheel change, thanks to maintenance-friendly design Hub gears from Framo Morat are suitable ...
Framo Morat

Rotational speed: 4,000, 3,000, 8,000, 6,000 rpm
Backlash: 0.05, 0.08 rad
The low-backlash planetary gearheads of the GSA series are designed for high positioning accuracy and highly dynamic cycle operation. Ground, helical toothed precision components inside the gear ensure ...
Framo Morat

Rotational speed: 3,000 rpm - 10,000 rpm
Backlash: 0.05, 0.08 rad
... high performance in combination with low backlash and high precision. Helical gears ensure a minimum noise level and smooth running. The robust, one-piece housing improves the gear rigidity and enables ...
Framo Morat

Rotational speed: 8,000 rpm
Backlash: 1.5, 3 °
Gear ratio: 5 unit - 2,187 unit
A combination of our B16 spur gearheads with our brush DC coreless motors provides a single, factory-integrated solution for demanding, high-efficiency applications. Due to its spur compound geartrain arrangement, it ...
Portescap S.A.

Rotational speed: 8,000 rpm
Backlash: 3, 1.5 °
Gear ratio: 22 unit - 3,280 unit
... specification pdf from the resources tab below > High-precision performance at a competitive price point > Reduction gearhead with spur gears and planetary output > Compact design > Customization ...
Portescap S.A.

Rotational speed: 5,000 rpm
Backlash: 1.5, 3 °
Gear ratio: 5 unit - 2,048 unit
The combination of our K24 spur gearheads with our brush DC coreless motors provides a single, factory-integrated solution for demanding, high-efficiency applications. Due to its spur compound geartrain arrangement, it ...
Portescap S.A.

Gear ratio: 3.5 unit - 3,000 unit
... years of commercial success achieved by DANA planetary gearboxes testify to their excellent quality and reliability, simple installation and limited maintenance. DANA’s industrial planetary gearboxes ...
Brevini Power Transmission

Rotational speed: 1,800, 1,400 rpm
Power: 0.5 kW - 24.9 kW
Gear ratio: 5 unit - 100 unit
... flanges in die cast aluminium • Motor flexible coupling • Gears in cemented and hardened alloy steel • Support hub in grey cast iron • Synthetic oil for lifetime lubrication of the gears • RCA oil ...
VARVEL

Rotational speed: 1,400, 1,800 rpm
Power: 0.5 kW - 12.5 kW
Gear ratio: 5 unit - 100 unit
... flanges in die cast aluminium • Motor flexible coupling • Gears in cemented and hardened alloy steel • Support hub in grey cast iron • Synthetic oil for lifetime lubrication of the gears • RCA oil ...
VARVEL

Rotational speed: 1,800, 1,400 rpm
Power: 0.5 kW - 24.9 kW
Gear ratio: 25 unit - 800 unit
of worm gearboxes are characterized by the coupling between a RS Series’ gearbox and a XA Series’ pre-stage, in order to achieve higher reduction ratios than those achievable with a single worm gearbox. Main ...
VARVEL

The Dual Speed Input Reducer is used to reduce the number of input turns required, and therefore the operating time, on manual gearbox applications. It can be used with any manual gearbox ...
Rotork

Rotork HOB/MPR gear operators are manufactured from high quality materials and life tested ensuring that maximum performance, quality and reliability are consistently maintained. Designed for manual applications, the ...
Rotork

... Totally enclosed gearing • Grease filled for life and fully sealed • Comprehensive gear ratios • Removable output sleeve • Spur and bevel combinations available • Input gear mounted on ball bearings
Rotork

Gear ratio: 12.94 unit
NEMA 23 Input, 90 in-lbs Torque Specifications Gearing: Hardened Steel, AGMA Class 9 Housing: Precision Machined Die Cast Aluminum Lubrication: Grease Filled, Sealed and Gasketed Bearings: Needle and Thrust Ball Shafts: Hardened ...
BISON

Power: 22 kW - 2,100 kW
Gear ratio: 6.3 unit - 22.4 unit
... achieve maximum thermal limit powers with axial fan • Low running noise The two-stage right-angle gear version of the MAXXDRIVE® XT industrial gear unit is manufactured according to the proven UNICASE ...
Getriebebau NORD GmbH & Co. KG

Power: 1.5 kW - 2,150 kW
Gear ratio: 12.5 unit - 30,000 unit
... noise The right-angle gear version of the MAXXDRIVE® industrial gear unit is manufactured according to the proven UNICASE housing principle and is available in all sizes. Various sealing options enable ...
Getriebebau NORD GmbH & Co. KG

Power: 1.5 kW - 925 kW
Gear ratio: 112, 12.5 unit
The right-angle gear version of the MAXXDRIVE® XJ industrial gear unit is manufactured according to the proven UNICASE housing principle and is available in all sizes. Various sealing options enable the ...
Getriebebau NORD GmbH & Co. KG

Rotational speed: 7,300, 3,650 rpm
Gear ratio: 50 unit - 120 unit
Nexen’s revolutionary Harmonic Gearhead (HG) is the ideal combination of size and precision. The Harmonic Gearhead integrated with Nexen’s Roller Pinion System creates a true backlash-free solution from ...

maxon GPX gearheads combine extremely high power transmission with a very short construction. High torques and speeds, low noise and backlash… the maxon GPX 08 has virtually every quality that could be required of a gearhead. ...
maxon

maxon GPX gearheads combine extremely high power transmission with a very short construction. The modular design provides the basis for a customer-specific solution. The use of metal components makes a wide range of applications ...
maxon

maxon GPX gearheads combine extremely high power transmission with a very short construction. The modular design provides the basis for a customer-specific solution. The gearhead's ceramic components make it suitable ...
maxon

... ・Troidal Worm Gears are high performance wormsthat transfer the load with their entire tooth surface. This gives them a higher load transfer capacity and ideal for compact machines. Compared to general-purpose cylindrical ...
Tsubakimoto Chain

... experience in designing tooth surface with unsurpassed torque transfer performance went into making a well-balanced cylindrical worm gear in terms of performance, efficiency, and cost. ・Choice between solid and hollow ...
Tsubakimoto Chain

... experience in designing tooth surface with unsurpassed torque transfer performance went into making a well-balanced cylindrical worm gear in terms of performance, efficiency, and cost. ・On-shaft and flange mounting ...
Tsubakimoto Chain

Multi-turn gearboxes GP in combination with SA multi-turn actuators act as multi-turn actuators with higher output torques. They are typically used with stem gates and wedge gate valves. Due to their compact design, these ...
AUMA

Rotational speed: 18,000, 13,000, 7,000, 6,500, 5,500 rad.min-1
... planetary gearheads are available in 40-155mm frame sizes and offer high torque, low backlash, high input speeds and a small package size with an excellent price/performance ratio. The PE-series planetary gearbox ...
Parker Electromechanical and Drives Division Europ

Rotational speed: 2,800 rpm
Power: 27 kW
... selection of planetary gear drives to meet the needs of your design. Each series provides unique benefits that have been developed through years of design research and practical application. You can count on Funk planetary ...
JOHN DEERE POWER SYSTEMS

Rotational speed: 2,800 rpm
... selection of planetary gear drives to meet the needs of your design. Each series provides unique benefits that have been developed through years of design research and practical application. You can count on Funk planetary ...
JOHN DEERE POWER SYSTEMS

Rotational speed: 2,800 rpm
Power: 35 kW
... selection of planetary gear drives to meet the needs of your design. Each series provides unique benefits that have been developed through years of design research and practical application. You can count on Funk planetary ...
JOHN DEERE POWER SYSTEMS

Rotational speed: 9,000 rpm
Backlash: 0.2 °
Gear ratio: 3 unit - 100 unit
... economy segment with low to medium requirements for positioning accuracy, the CP planetary gearbox do not fail to impress. The key benefits offered by the gearboxes are high flexibility combined with ...
WITTENSTEIN SE

Gear ratio: 80, 50, 120, 100 unit
... With or without hollow shaft, journal and output bearing, the compact gear units are available in a wide range of series and reduction ratios. From sealed strain wave gears to gearboxes ...
HIWIN GmbH

Gear ratio: 100, 80, 120, 50 unit
... With or without hollow shaft, journal and output bearing, the compact gear units are available in a wide range of series and reduction ratios. From sealed strain wave gears to gearboxes ...
HIWIN GmbH

Gear ratio: 50, 120, 80, 100 unit
... With or without hollow shaft, journal and output bearing, the compact gear units are available in a wide range of series and reduction ratios. From sealed strain wave gears to gearboxes ...
HIWIN GmbH

Rotational speed: 5,000, 3,000 rpm
Gear ratio: 4, 16, 1,024, 64, 256 unit
Planetary gearbox with a galvanized steel frame, delrin and hardned steel gears; output shaft supported by two ball bearings, max imput speed at the reduction gear 5000 R.P.M. advised ...
BERNIO ELETTROMECCANICA s.n.c.

Rotational speed: 5,000, 3,000 rpm
Gear ratio: 64, 256, 16, 1,024 unit
Planetaryuction gearbox with a zinc plated steel frame and aluminium flange. Output shaft is supported by two screened bearings. Max inputspeed in the reduction gear 5000 R.P.M. advised speed 3000 ...
BERNIO ELETTROMECCANICA s.n.c.

Rotational speed: 5,000, 3,000 rpm
Gear ratio: 4 unit - 384 unit
Planetary gearbox with galvanized steel frame and delrin, sintered steel and hardned steel gear; output shaft supported by two ball bearings, max input speed at the reduction gear 5000 ...
BERNIO ELETTROMECCANICA s.n.c.

Rotational speed: 3,000, 5,000 rpm
Weight: 2.5 kg
Our planetary gear from the Drive Series is customized for the special requirements of wheel drives. Due to its helical gearing it also meets increased demands on low noise performance. Low Noise (LN) Due to the use ...
IMS Gear

Rotational speed: 6,000 rpm
Backlash: 2, 2.5, 1.5 °
Weight: 50, 33, 52 g
Our plastic planetary gear from the Eco Series with outer diameter 22 mm combines efficiency with economy. In the radially screwed or welded MAX version it stands for improved performance with small installation space. Economy Modular ...
IMS Gear

Rotational speed: 3,000 rpm
Backlash: 0.9, 1 rad
Weight: 275, 385, 500 g
Our planetary gear from the Pro Series with outer diameter 42 mm combines performance with robustness. Due to easy adaptations of the configuration all Pro gears are also available in Low Noise (LN) design. Performance Powerful, ...
IMS Gear

Rotational speed: 2,000 rpm
Gear ratio: 2, 1 unit
... quality H1 class food grade grease, IP65-Rated Crown gear right-angle gearboxes prove to be an ideal solution for applications in the food sector. An independent institute confirms that the right-angle ...

Rotational speed: 100 rpm - 1,000 rpm
... 20 mm and 7 different ratios. The housing is sealed to prevent grease leakage and keep dust out. These are left hand worm gears. The rotation direction on the shaft is arbitrary. - smooth power transmission - simple ...

Rotational speed: 100 rpm - 1,000 rpm
Bevel gears Material: Housing aluminium. Bevel gears steel. Version: Housing anodized. Bevel gears surface hardened. Ball bearing with rubber sealing washer RS. Note: Universally ...

Gear ratio: 3 unit - 110 unit
Worm Gear SN15 Single-stage worm gear unit for restricted installation spaces. Highly flexible in use. Available with or without electric motor. Key facts: - Nominal torques: up to 4.7 Nm - Available ...
Ruhrgetriebe KG

Rotational speed: 5 rpm - 260 rpm
SpeeroX-Gear ENEX15 Energy and sustainability are terms that are shaping this decade and will take on an ever increasing role in the production systems of the future. With ENEX gear units and gearmotors, ...
Ruhrgetriebe KG

Gear ratio: 7 unit - 55 unit
Worm Gear SN5VH The right drive solution for every challenge: Experience our new modular worm gear, which offers a variety of mounting options and can therefore be adapted to all your needs. With ...
Ruhrgetriebe KG

Gear ratio: 3, 2, 1 unit
Our bevel gearboxes are primarily used in our lifting systems. Thanks to the robust design, the gearboxes offer high reliability and a long service life. There are two types of gearboxes ...

Our bevel gearboxes are primarily used in our lifting systems. Thanks to the robust design, the gearboxes offer high reliability and a long service life. There are two types of gearboxes ...

... overloading. High thermal conductivity and same thermal expansion as worm gear set. Therefore, the meshing ratios of worm and worm wheel are exactly the same when the gearbox is cold as when it is operating.

Rotational speed: 2 rpm - 300 rpm
Gear ratio: 10 unit - 1,250 unit
Spur gear reducer - S5 - Plate gear - Nitrided steel gears - Steel output shaft - Output in sintered bronze bearings
Kählig Antriebstechnik GmbH

Rotational speed: 10 rpm - 800 rpm
Planetary gear reducer - P42I - steel housing, aluminium flange - other ratios, output shafts and connections on request
Kählig Antriebstechnik GmbH

Rotational speed: 9.7 rpm - 810 rpm
Planetary gear reducer - P62I - steel housing, aluminium flange - other ratios, output shafts and connections on request
Kählig Antriebstechnik GmbH

Power: 0.09 kW - 160 kW
Gear ratio: 2 unit - 160 unit
This series of gear reducers and gearmotors combines and exalts the traditional qualities of helical and bevel helical gear reducers (strength, accuracy, ...
Rossi S.p.A.

Power: 0 kW - 1,710 kW
Standard and extended centre distance model helical gear reducers and gearmotors equipped with extruder support, derived from the parallel and right-angle shaft standard series with extruder ...
Rossi S.p.A.

... capacity 12 sizes, train of gears solutions and non-standard designs Helical gear units with 2, 3 and 4 gear stages Bevel helical gear units with 2, 3 and 4 gear ...
Rossi S.p.A.
Your suggestions for improvement:

A gear reducer is a gearing assembly that can reduce rotational speed while increasing torque in a mechanical system, or increase speed while reducing torque (in which case it is called a multiplier).
ApplicationsThese devices are extremely common in a wide range of mechanical transmission applications, including automobile and motorcycle transmissions, in machine tools, variable speed drives and gear motors.
TechnologiesThere are four basic types of gear reducer:
- Straight (or straight sprocket, with straight-cut or cylindrical teeth)
- Worm gear (worm and wheel), with straight or helical teeth
- Bevel gear, with straight or helical teeth
- Planetary (epicyclic) gear
The term helical refers to tooth profile. Helical teeth can be found on any gear type. Note that in a rotating mechanism, speed and torque are inversely proportional.
Choice of gear reducer will depend on the speed and torque of both the input and output shafts. These data can be used to calculate the reduction ratio. Another factor is the relative orientation of the input and output shafts: coaxial, parallel, perpendicular, convergent or not.
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