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Product Description
High-Torque, Self-Locking Solutions for Industrial Power Transmission
Yile Machinery specializes in the custom manufacturing of high-performance worm gear sets, consisting of a precision-ground steel worm and a high-quality bronze worm wheel. Engineered for high gear ratios and smooth, quiet operation, our worm drives are the ideal solution for applications demanding significant torque multiplication and reliable load-holding capabilities.
We produce these sets to your exact specifications, providing the core components for building or repairing robust industrial gearboxes, hoists, and positioning systems.
Worm gear sets are the preferred choice for many demanding applications due to their unique characteristics:
Extremely High Gear Ratios: Easily achieve reduction ratios of 20:1 to 100:1 or more in a single stage, something impossible with standard spur gears.
Self-Locking Property: Depending on the lead angle, many worm drives are inherently self-locking. The worm can drive the wheel, but the wheel cannot back-drive the worm. This is a critical safety feature for lifts, hoists, and jacking systems.
Compact & Right-Angle Design: Transmit power at a 90-degree angle in a very compact space envelope.
Smooth & Quiet Operation: The sliding contact between the worm thread and the wheel teeth results in low noise and vibration.
The long life of a worm gear set depends on the perfect combination of materials and precision manufacturing. We control every step for both components.
1. The Worm (Hardened Steel)
The worm's threads must be extremely hard and smooth to resist wear.
Material: We start with high-quality alloy steels like 42CrMo (4140) or carburizing steels like 20CrMnTi.
Heat Treatment: The worm undergoes carburizing or induction hardening to create a case hardness of 58-62 HRC.
Precision Grinding: After hardening, the worm threads are precision-ground to achieve a perfect profile and an exceptionally smooth surface finish, which is critical for reducing friction and wear on the bronze wheel.
2. The Worm Wheel (High-Quality Bronze)
The worm wheel is designed to be the conformable, sacrificial element in the pair. Its material is key to the system's success.
Material: We use high-performance bearing bronzes, typically Tin Bronze (e.g., ZCuSn10Pb1) or Aluminum Bronze. These alloys offer an excellent combination of strength and low friction against hardened steel.
Casting: For superior material integrity, the bronze ring is often produced via centrifugal casting, which eliminates porosity and creates a dense, uniform grain structure.
Precision Hobbing: The teeth are cut into the bronze blank using a specialized CNC gear hobbing machine to ensure a perfect mesh with the worm.
To ensure correct assembly and optimal performance, we supply the worm and worm wheel as a factory-matched set. This guarantees:
Correct Center Distance: The gears are manufactured to work at a specific center distance for the proper contact pattern.
Verified Backlash: The set is checked for the correct amount of clearance between the teeth.
Smooth Engagement: A matched set ensures the quietest and most efficient operation possible.
Our custom worm gear sets are the driving force behind a wide range of machinery:
Lifting & Hoisting: Elevators, cranes, winches, and jacks.
Conveying Systems: Heavy-duty conveyor drives.
Machine Tools: Rotary tables and indexing heads.
Industrial Machinery: Press drives, packaging machines, and material handling equipment.
Gate & Valve Actuators: High-torque positioning systems.
Get a Quote for Your Worm Gear Set
Provide us with your technical drawings for the worm and wheel, including material specifications, gear ratio, and application details. Our engineering team is ready to manufacture a precision-matched set for your project.
