What is a Worm gear?

A worm gear is a type of gear where a worm (a gear with a screw-like thread) meshes with a worm wheel (a standard gear). The primary advantage of a worm gear is its ability to provide a high reduction ratio and smooth power transmission with relatively low input speed. It is often used in applications where space is limited and high torque is required.

The main features of a worm gear are as follows:
・Perpendicular axes: The worm gear typically involves two shafts that intersect at a 90-degree angle, allowing for efficient use of space in mechanical designs.
・High reduction ratio: Worm gears can achieve very high reduction ratios, making them ideal for applications requiring low-speed, high-torque transmission.
・Self-locking ability: In some cases, the worm gear has the ability to prevent reverse rotation, offering safety features for certain applications such as lifts or hoists.
Features:
・High torque transmission: Worm gears are capable of transmitting high torque, making them ideal for driving heavy loads.
・High reduction capability: Worm gears can achieve very high reduction ratios, allowing for significant reduction in rotational speed.
・Low-speed operation: They provide smooth, low-speed operation with high torque, which is ideal for certain mechanical systems.
・Self-locking: Preventing reverse motion, making them ideal for safety-critical applications.

Application of Worm gear

１．Lifts and elevators: Used in lifts and elevators for efficient torque transmission and self-locking to ensure safety.
２．Screw lifts: Worm gears are used in screw lifts to raise or lower loads or components.
３．Automotive steering systems: Worm gears can be found in power steering systems and other automotive steering mechanisms.
４．Conveyor systems: Worm gears are used in large conveyor systems where high reduction ratios and high torque are needed.

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