This helical gear shaft is forged in one piece, with helical gears at both ends. The large helical gear on the right end is the main reduction drive gear, which meshes with the differential driven large helical gear to achieve single-stage main reduction and torque amplification, reducing output speed and increasing torque. The small helical gear on the left end is the low-speed driven gear, meshing with the 1st and 2nd gears of the gearbox, and paired with the corresponding shift drive gear to achieve high torque at low speeds. The two work together to achieve greater torque capacity and higher strength.
Helical Gear Shaft
Specification
Module
2.5
Material
20MnCr5
Heat Treatment
Carburizing and quenching HRC58–62
Accuracy
ISO 6
Applications of Helical Gear Shaft
This helical gear shaft can be used in manual transmissions for gasoline-powered passenger vehicles, transmissions for some small construction and agricultural machinery, or small industrial planetary gearboxes and conveyor gearboxes, in applications requiring a compact, integrated output shaft and low-noise transmission.
This helical gear shaft is forged as a single piece, with the gear, shaft, and synchronizer splines all forged as a single unit. Eliminating the need for separate gear press-fitting not only saves space and reduces the size of the transmission housing but also significantly reduces the risk of loosening and slippage between the gear and shaft, greatly improving reliability under high speeds and heavy loads.
Production process
6-Step Production Process
Forging
Turning
Gear Cutting
Heat Treatment
ID & OD & Surface Grinding
Tooth Grinding
Forging
When gears need high performance that needs to withstand high loads, high stress, impact loads or fatigue loads, forgings are suggested to use. Forging allows metal fibers to be continuously distributed along the gear profile, significantly improving root strength and fatigue life.
Turning
This is the process of cutting and shaping solid materials into precise parts. It uses tools like lathes, mills, and drills to remove excess material. Machining transforms a simple block of metal into a finished, functional component.
Gear Cutting
Gear Cutting includes all processes to create gear teeth after rough or fine machining. It shapes teeth to ensure smooth and efficient power transfer for performance, strength and cost efficiency.
Heat Treatment
Gears need to be running with two gears or above two gears, that makes them easy to be worn-out. That’s why most types of gears need to be harden through heat treatment.
ID & OD & Surface Grinding
ID grinding, OD grinding, Surface grinding are all belonging to CNC grinding which are the foundational precision abrasive machining processes used to achieve exceptional dimensional accuracy and surface finishes, especially on hardened materials.
Tooth Grinding
Tooth Grinding are the final processes are applied after heat treatment to correct distortion, improve geometry, and achieve the final surface finish necessary for quiet, efficient power transmission.
Inspection
Strict Quality Inspection
Dimension Inspection
Material Inspection
Heat Treatment Testing
UT & MT Testing
Meshing Testing
Accuracy Testing
Dimension Inspection
Material Inspection
Heat Treatment Testing
UT & MT Testing
Meshing Testing
Accuracy Testing
Packages
Professional Packaging Safe Arrival
Customized cost-effective packages for products protection. We select multi-model solutions, combining air, sea, or land freight for the optimal balance of cost, speed, and reliability.
Inner Package
Out Package
Carton
Wooden Package
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