Gear reducers

222 companies | 1448 products
Planetary gear reducer / coaxial / low-backlash

The iconic all-rounder planetary...

Helical gear reducer / planetary

Jack-up rigs are used to search for oil and gas deposits down to...

For mining applications / dual-stage

Mining companies lose time and money....

Shaft-mounted gear reducer / for yankee dryer / for the paper industry / three-stage

In tissue machines and in some paper and paperboard...

Gearbox for marine applications / multiple input

Multiple input/single output marine gearboxes...

Helical gear reducer / parallel shaft / single reduction

The S series of single-reduction...

Planetary gear reducer / bevel / right-angle / combined

Bonfigliolis 3/H gearboxes combine the high technology, performance...

Worm gear reducer / perpendicular

The Bonfiglioli VF/W Universal...

Bevel gearbox

Cost effectively...

Worm gearbox / for valve actuators / quarter-turn

The AB range of quarter-turn...

Planetary gear reducer / coaxial / precision

Planetary Gearheads Their robust construction...

Spur pinion gear reducer / coaxial

Spur Gearheads A wide range...

Dual-shaft gear reducer

Fields of application for these...

Coaxial gear reducer / custom

Worked out solutions exist for e. g.: different shifting gears,...

Planetary gear reducer / with hollow shaft / high-torque

Brevini "S Series" gear units are the ideal choice for applications,...

Planetary gear reducer / high-torque / industrial

Our Core Competency is the passion for...

Helical gear reducer / parallel-shaft

The SMR helical reducer...

Worm gear reducer / right-angle

Tsubaki worm gear reducers provide...

Bevel gear reducer / right-angle

Coming in sizes from small to large,...

Planetary gear reducer / coaxial / precision

The XTRUE™ Series is a...

Planetary gear reducer / coaxial

True Planetary® gearhead was strongly...

Planetary gear reducer / coaxial

UltraTRUE™ is a true planetary gearhead...

Helical gear reducer / worm / right-angle / robust

The right-angle worm gear reducer...

Worm gear reducer / right-angle / aluminum / universal

With its compact built features, the Universal...

Right-angle gear reducer / for asynchronous motors

The RH/RA Series has standard-type...

Planetary gear reducer / coaxial

The Funk planetary drives offer durability,...

Worm gear reducer / right-angle / cooling tower / for conveyors

ER series presents the heavy duty worm gear which proves...

Helical gear reducer / right-angle / heavy-duty / gear tooth

Series G gear units are available in parallel shaft helical...

Helical gear reducer / with hollow shaft / industrial

Radicon Series H InLine industrial gearboxes feature a very modular design...

Planetary gear reducer / coaxial

The planetary gear range...

Helical gear reducer / bevel / right-angle

Spiral bevel gearboxes from Vogel are robust...

Helical gear reducer / bevel / right-angle

The Bevel helical line of gearboxes is fitted with...

Helical gear reducer / bevel / parallel shaft / explosion-proof

These ATEX approved helical gearboxes feature...

Planetary gear reducer / coaxial / low-backlash

The MPR, MPRN, MPRW series from Vogel...

Planetary gear reducer / coaxial

The R 30Q is an epicicloidal...

Planetary gear reducer / coaxial

Epicycloid reduction gearbox ...

Planetary gear reducer / coaxial

The R 63 Model is a planetary...

Planetary gear reducer / coaxial

The Gear Box R 63 NEMA 34 is...

How to choose this product

gear-reducer

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).

Applications

These 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.

Technologies

There 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.

How to choose

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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