Gear Box Repair/Rebuild

Gear Box Repair/Rebuild
Custom Gear Box Rebuilds

Delta Dynamics can build a new set of gears in an old housing, painted to your specifications with all new hardware and plumbing, without a "new" price. This box was rebuilt in less time than it would take to cast a new housing, and met all customer requirements.


Gear Box Repair/Rebuild
A Tale of Two Rebuilds

This box was rebuilt and redesigned by another shop to handle the increased horse power that an Aluminum Smelter wanted to put through it. It lasted for 2 weeks.

The design looks good on paper, with large gear width being able to handle high horse power. However, large torque will wind up the pinion shaft so that the actual length of contact is nowhere near as wide as hoped.


Gear Box Repair/Rebuild
Rebuilt Right

This set of gears was used to replace the failed helical set above. The double helical design eliminated all thrust loads on the bearings as the bearings were one of of the constricting factors with the increase in horse power. The gears were case hardened with profile ground teeth. The double helical design with an axial float on the pinion allowed full face contact regardless of tortional windage.