Worm & Pinion Gears | Bronze Worm Wheel Gear | RS
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    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.

    16 Products showing for Worm & Pinion Gears

    RS PRO
    1
    Bronze
    50mm
    50
    -
    -
    -
    -
    -
    30mm
    20mm
    RS PRO
    0.8
    Bronze
    16.03mm
    20
    -
    -
    -
    -
    -
    12mm
    18mm
    RS PRO
    0.8
    Bronze
    16.11mm
    20
    -
    -
    -
    -
    -
    12mm
    18mm
    RS PRO
    0.8
    Bronze
    32.05mm
    40
    -
    -
    -
    -
    -
    20mm
    18mm
    RS PRO
    1
    Bronze, Steel
    16mm
    -
    2
    RH
    32mm
    18mm
    20°
    -
    -
    RS PRO
    0.8
    Steel
    14mm
    -
    1
    RH
    30mm
    15.6mm
    20°
    -
    -
    RS PRO
    0.8
    Bronze
    40.06mm
    50
    -
    -
    -
    -
    -
    25mm
    18mm
    RS PRO
    1
    Bronze
    20.16mm
    20
    -
    -
    -
    -
    -
    16mm
    20mm
    RS PRO
    1
    Steel
    16mm
    -
    1
    RH
    32mm
    18mm
    20°
    -
    -
    RS PRO
    0.8
    Bronze
    24.16mm
    30
    -
    -
    -
    -
    -
    18mm
    18mm
    RS PRO
    1
    Bronze
    30.24mm
    30
    -
    -
    -
    -
    -
    20mm
    20mm
    RS PRO
    1
    Bronze
    20mm
    20
    -
    -
    -
    -
    -
    16mm
    14.5mm
    RS PRO
    1
    Bronze
    30mm
    30
    -
    -
    -
    -
    -
    20mm
    16.5mm
    RS PRO
    0.8
    Bronze, Steel
    14mm
    -
    2
    RH
    30mm
    15.6mm
    20°
    -
    -
    RS PRO
    0.8
    Bronze
    24.04mm
    30
    -
    -
    -
    -
    -
    18mm
    18mm
    RS PRO
    1
    Bronze
    40mm
    40
    -
    -
    -
    -
    -
    26mm
    16.5mm
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