Emergency Gear Box Repair of Slitting Line Drive Unit for the Steel Processing Industry
Our client from the steel processing industry approached Dayton Gear with a gear box for a slitting line drive unit that had failed, requiring emergency repair via hobbing, CNC turning, heat treating, and rebuilding, to get two of the customers slitting lines back on line as soon as possible. The gear box failure and line shutdown was costing the customer $1,000 per hour, and the OEM had quoted a turnaround and delivery time of 16 weeks for a replacement. Working around the clock, Dayton Gear personnel analyzed and diagnosed the internal helical gear and drive shaft failures, and reverse engineered these components to provide the correct replacements. Dayton Gear fully manufactured the internal components in-house, and provided all new components needed for rebuilding the full drive unit, including bearings, seals, spacers, and power transmission components. With our engineers working non-stop to provide the replacement as soon as possible, we completed the rebuild in 40.7 hours, which translated to a total savings of $240,000 for the customer.

Emergency Gear Box Repair of Slitting Line Drive Unit Project Highlights
| Product Description |
Dayton Gear Rebuilt this drive unit with updated components to avoid future failures. |
| Capabilities Applied/Processes |
Diagnosis
- Technical Staff Diagnosed Internal Component Failure
Reverse Engineering
- Reverse Engineered Helical Gear & Drive Shaft
- Utilizing:
- Calipers
- Micrometers
- Coordinate Measurement Machine (CMM)
Helical Gear & Drive Shaft Manufacturing
Drive Unit Rebuild/Assembly
- Unit Rebuilt w/ New:
- Bearings
- Seals
- Spacers
- Power Transmission Components
Rebuilt in 40.7 Hours |
| Tightest Tolerances |
Assembled to Industry Standard Backlash |
| Material Used |
Alloy Steel |
| Max Material Finish |
Heat Treatment
- Shaft Heat Treated to 45Rc
|
| In process testing performed |
100 % Dimensional Inspection Operational Testing
- Run Gear Box
- Vibration Analysis
- Temperature Analysis
|
| Customer Savings |
$240,0000 |
| Industry for Use |
Steel Processing |
| Delivery Location |
Northern Ohio |
| Standards Met |
Customer supplied specifications |
| Product Name |
Emergency Gear Box Repair of Slitting Line Drive Unit | |