Comet Industries

A parallel shaft helical gearbox is a type of industrial gear reducer where the input and output shafts are parallel to each other, but offset. It uses helical gears, which have teeth cut at an angle to the gear's axis, to transmit power and torque. This design provides significant advantages in efficiency, load capacity, and quiet operation compared to other gearbox types. 
Design and working principle
Gear arrangement: Unlike inline helical gearboxes where the shafts are co-axial, parallel shaft gearboxes have their input and output shafts positioned side-by-side. Power is transferred through multiple stages of helical gears to achieve the desired speed reduction.

• Helical gears: The angled teeth of helical gears allow them to mesh gradually over a longer period of contact than straight-toothed gears. This engagement process reduces impact, noise, and vibration, making for smoother operation, especially at high speeds.
• High torque: The larger contact area between mating helical gears allows for the load to be distributed over multiple teeth at once. This significantly increases the gearbox's torque-carrying capacity and durability.
• Axial thrust: The slanted teeth of helical gears produce an axial thrust force along the shaft. This is managed by robust bearings designed to handle the additional load. 
  Key features Of Parallel Shaft Helical Gearbox
  • High efficiency: Parallel shaft helical gearboxes offer high efficiency in power transmission, with some models exceeding 95%.
  • High load capacity: They are built to withstand high torque and shock loads, making them suitable for heavy-duty applications in demanding industrial environments.
  • Compact design: The arrangement of gears and parallel shafts results in a space-saving design, which is ideal for installations where space is limited.
  • Quiet operation: The smooth, gradual tooth engagement of helical gears minimizes noise and vibration, improving the working environment.