Helical Gear

This heavy-duty helical gear is a precision-engineered transmission component designed to deliver smooth, high-torque power transfer in demanding industrial, agricultural, and automotive systems.

Construction & Materials

Fabricated from high-strength low-alloy steel, this gear undergoes a specialized heat-treatment process involving carburizing, quenching, and tempering. This creates a hardened tooth surface (HRC 58–62) for exceptional wear resistance, paired with a tough, ductile core that can withstand high impact loads and shock forces. The gear features a phosphate conversion coating, which provides enhanced corrosion protection, reduces friction during meshing, and helps retain lubricant to extend service life in dusty, damp, or high-temperature operating environments.

Design Features

Helical Tooth Profile: The angled helical teeth engage gradually with mating gears, distributing contact stress across a larger surface area than spur gears. This design significantly reduces noise and vibration, enabling quieter operation even at high rotational speeds, while also increasing the gear’s load-carrying capacity and resistance to tooth breakage.

Precision Machining: The gear teeth are cut using CNC gear hobbing to achieve an accurate involute profile, ensuring smooth meshing, minimal backlash, and consistent torque transfer. The central precision-machined bore, combined with a set-screw hole on the hub, ensures a concentric, slip-free fit onto drive shafts, maintaining alignment and reducing premature wear.

Optimized Geometry: The helix angle and tooth profile are engineered to balance axial thrust and load distribution, minimizing the risk of pitting, scuffing, or tooth fatigue. This results in a longer service life and reliable performance in continuous-duty applications.

Performance & Applications

This helical gear excels in applications requiring high torque, low noise, and durable performance, such as:

Industrial gearboxes for conveyors, crushers, and material handling systems

Agricultural machinery including tractor transmissions and harvester drives

Heavy-duty construction equipment like excavator and loader drivetrains

Automotive transmissions and auxiliary power systems

Its combination of rugged construction, precision engineering, and corrosion resistance makes it a dependable choice for critical systems where downtime is costly and performance is essential.