Worm & Pinion Gears

Worm and pinion gears, also referred to as worm wheel gears, are types of gear compositions used in a wide range of industrial and domestic applications that require very large reduction ratios to be achieved with higher torque. The worm gear resembles a threaded shaft that utilises teeth to drive the gear, allowing for machinery and components to operate. Each time the shaft or worm spins one revolution, the gear turns forward by only one tooth. Therefore, if the gear has 50 teeth, this creates a gear ratio of 50:1. To summarise, the pinion gear and worm work together in a gear arrangement often referred to as a worm drive.

How do worm and pinion gears work?

When rotational power is applied to the worm, say, using an electric motor, it rotates against the gear and transfers torque to the pinion gear similar to a spur gear. The system is designed so that the worm can easily turn the pinion gear, but the gear cannot transmit motion back to the worm. When the gear tries to turn the worm, friction between the two elements prevents the worm from turning which is known as self-locking.

What are worm and pinion gears used for?

Worm and pinion gears can be found in domestic devices as well as in heavy machinery. They are useful for machines such as conveyor systems, tuning instruments, lifts and elevators, gates and in torsen differentials used in high-performance vehicles and trucks.


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Beskrivning Pris Module Material Gear Direction Number of Starts Overall Length Overall Diameter Pitch Diameter Pressure Angle Hub Diameter Face Width Number of Teeth
RS-artikelnummer 521-6812
VarumärkeRS PRO
133,69 kr
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0.8 Bronze, Steel RH 2 30mm 15.6mm 14mm 20° - - -
RS-artikelnummer 521-8559
VarumärkeRS PRO
130,02 kr
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0.8 Steel RH 1 30mm 15.6mm 14mm 20° - - -
RS-artikelnummer 521-6979
VarumärkeRS PRO
515,02 kr
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1 Bronze - - - - 50mm - 30mm 20mm 50
RS-artikelnummer 521-6856
VarumärkeRS PRO
232,12 kr
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0.8 Bronze - - - - 24.04mm - 18mm 18mm 30
RS-artikelnummer 521-6834
VarumärkeRS PRO
170,75 kr
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0.8 Bronze - - - - 16.03mm - 12mm 18mm 20
RS-artikelnummer 521-6878
VarumärkeRS PRO
311,05 kr
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0.8 Bronze - - - - 32.05mm - 20mm 18mm 40
RS-artikelnummer 521-6884
VarumärkeRS PRO
427,20 kr
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0.8 Bronze - - - - 40.06mm - 25mm 18mm 50
RS-artikelnummer 521-6957
VarumärkeRS PRO
270,33 kr
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1 Bronze - - - - 30mm - 20mm 16.5mm 30
RS-artikelnummer 521-6890
VarumärkeRS PRO
130,02 kr
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1 Steel RH 1 32mm 18mm 16mm 20° - - -
RS-artikelnummer 521-6907
VarumärkeRS PRO
133,69 kr
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1 Bronze, Steel RH 2 32mm 18mm 16mm 20° - - -
RS-artikelnummer 521-6840
VarumärkeRS PRO
232,12 kr
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0.8 Bronze - - - - 24.16mm - 18mm 18mm 30
RS-artikelnummer 521-6935
VarumärkeRS PRO
180,75 kr
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1 Bronze - - - - 20mm - 16mm 14.5mm 20
RS-artikelnummer 521-6913
VarumärkeRS PRO
180,75 kr
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1 Bronze - - - - 20.16mm - 16mm 20mm 20
RS-artikelnummer 521-6941
VarumärkeRS PRO
270,33 kr
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1 Bronze - - - - 30.24mm - 20mm 20mm 30
RS-artikelnummer 521-6963
VarumärkeRS PRO
381,93 kr
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1 Bronze - - - - 40mm - 26mm 16.5mm 40
RS-artikelnummer 521-6828
VarumärkeRS PRO
170,75 kr
Each
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0.8 Bronze - - - - 16.11mm - 12mm 18mm 20