Large Worm Gear

Large worm gear is transmission device. The worm is cylindrical with spiral teeth, and the worm wheel is similar to a gear. It is driven by tooth meshing and is used in large transmission ratio and low speed scenarios.

Send Inquiry

Description

Luoyang Yujie Industry&Trade Co., Ltd is one of the most experienced manufacturers and suppliers of large worm gear in China. Please feel free to buy cheap large worm gear for sale here from our factory. All customized products are with high quality and competitive price.

Definition

Large worm gear refer to worm gear transmission devices with larger size specifications and stronger load-bearing capacity. They are important components in the field of mechanical transmission and are often used in heavy machinery scenarios that require large transmission ratios, low speeds or high torques. Its core consists of a worm wheel (a gear-like part, usually made of soft metals such as bronze) and a worm (a screw-like part, generally made of steel), and power transmission is achieved through tooth surface meshing.

Products Description

large worm gear processing

Name	Large worm gear
Dimensions	Modulus ≥ 6mm, worm gear diameter ≥ 300mm
Carrying capacity	Torque can reach thousands of Nm
Material requirements	High-strength steel + wear-resistant bronze
Application scenarios	Heavy machinery, industrial equipment

Contact now

Main features

large worm gear

Large size and high load

The diameter, module (unit of measurement for gear pitch) and tooth width of worm gears are large, and they can withstand torques of hundreds to thousands of Newton meters. They are suitable for heavy machinery such as lifting equipment, mining machinery, and ship deck machinery.

Material: High-strength steel (such as 45 steel, alloy steel) is usually used to make worms, and wear-resistant bronze (such as ZCuSn10Pb1) or cast iron is used for worm wheels to balance strength and friction reduction.

Large transmission ratio and self-locking

The transmission ratio (worm speed / worm wheel speed) can usually reach 10:1 to 80:1, or even higher, which is suitable for scenarios where the speed needs to be greatly reduced and the torque needs to be increased (such as elevator traction machines).

In some designs, when the lead angle of the worm is small (smaller than the friction angle), reverse self-locking can be achieved (the worm wheel cannot drive the worm) to ensure the safety of the equipment (such as the braking function of the crane).

Smooth transmission and low noise

The tooth surface meshing is a progressive sliding friction, with small impact and smooth operation, which is suitable for occasions that are sensitive to vibration and noise (such as precision instrument transmission).

Main functions

Large transmission ratio deceleration

The single-stage transmission ratio is usually 10~80, and the maximum can reach more than 300. It is suitable for scenarios where the speed needs to be greatly reduced and the torque needs to be increased (such as lifting machinery and mining equipment).

Vertical staggered shaft transmission

The worm axis and the worm wheel axis are usually vertically staggered (angle 90°), which can realize power transmission in the vertical direction of space and has a compact structure.

Self-locking (some scenarios)

When the worm lead angle is less than the friction angle of the meshing surface, the transmission has self-locking properties (only the worm can drive the worm wheel, but not vice versa), which is often used in occasions with high safety requirements (such as elevators and winches).

Smooth transmission and low noise

When the worm gear is meshed, it is multi-tooth contact, and the tooth surface sliding friction is the main, the transmission is smooth, the impact and vibration are small, and it is suitable for precision equipment or noise-sensitive environments.

Adapt to heavy loads and harsh working conditions

Large worm gears can withstand high loads and impacts by optimizing materials (such as high-strength steel, wear-resistant copper alloy) and structural design (such as increasing modulus and tooth width), and are suitable for metallurgy, heavy machinery and other fields.

Typical application scenarios

Industrial equipment: such as the lifting device of a rolling mill and the transmission system of a ship's steering gear.

Lifting machinery: such as the slewing mechanism of a port crane and the reduction gearbox of a building elevator.

Mining machinery: such as the transmission device of a mine hoist and ore crusher.

Precision instruments: such as the indexing mechanism of a machine tool and the fine-tuning device of an optical device (using self-locking and high-precision characteristics).