Helical Gearbox

Second, the planet gear bearings have to play an active role in Helical Gearbox torque transfer. Planetary systems split the torque insight from the sun gear amongst the earth gears, which transfer torque to a world carrier connected to the gearbox result. The bearings that support the planets on the carrier have to bear the entire brunt of that torque transfer.

Or, in acute cases, they could select angular get in touch with or tapered roller bearings, both which are made to withstand axial loads.
In planetary gearboxes, however, it’s much more difficult to design around these axial forces for just two related reasons. Initial, there is typically very little space in a planetary gearbox to include the type of bulky bearings that may tolerate high axial forces.

The existence of axial forces makes things very different for the bearings that support helical gears. But it’s important to make a distinction between fixed-axis and planetary gearboxes. In fixed-axis gearboxes, the additional axial forces amount to little more than a hassle. Gearbox designers will often upsize the bearings to accommodate the additional forces.

Since they don’t need to withstand any axial forces, spur gear bearings enjoy just a supporting part in the functioning of the gearbox. The bearings should just support the rotating equipment shafts, but they do not really play an active part in torque transfer.

Helical Gears Place Higher Demand on Bearings