Helical Bevel Gear with Integral Shaft Hub

This helical bevel gear is a precision-engineered mechanical component designed for efficient power transmission between intersecting shafts, typically at a 90-degree angle. Constructed from high-grade alloy steel, the gear undergoes advanced heat treatment processes such as carburizing and quenching to achieve a hard, wear-resistant surface while maintaining a tough core. This combination ensures excellent durability, fatigue resistance, and long service life under heavy loads and high-speed operation.

The gear features a conical tooth profile with helical teeth that are precisely machined to form an involute geometry. The helical design allows for smoother meshing with a mating gear compared to straight-cut bevel gears, resulting in reduced noise, vibration, and shock during operation. The angled teeth also provide increased contact ratio and load distribution across multiple tooth pairs, enhancing torque capacity and overall efficiency.

At the base of the gear, there is a cylindrical shaft hub with a uniform diameter, designed for direct mounting onto a drive shaft or axle. This integral hub enables secure installation and eliminates the need for separate mounting components, simplifying assembly and improving alignment accuracy. The hub may include keyways or splines (depending on application) to ensure positive torque transfer and prevent slippage.

The gear exhibits a distinctive iridescent surface finish, commonly referred to as "tarnish" or "oxidation film," which forms naturally during heat treatment. This multi-colored coating—ranging from green, blue, to purple hues—is not only visually indicative of proper thermal processing but also provides enhanced corrosion resistance and improved lubricant retention. In some cases, this finish may be further protected with oil or anti-rust treatments to extend performance in harsh environments.

Typically used in automotive differentials, industrial gearboxes, and precision machinery, this helical bevel gear is ideal for applications requiring smooth, quiet, and reliable angular power transmission. Its robust construction, precise machining, and optimized tooth geometry make it a critical component in systems where performance, efficiency, and longevity are paramount.