Precision Gearbox, Speed Reducer
and Industrial Drive Repair

When failure is not an option, trust the specialists who rebuild, restore, and improve.

The Specialty Gear Drives Difference: Beyond Repair

At Specialty Gear Drives, we ain’t about just patchin’ up problems—we completely restore your critical power transmission assets. For over 40 years, we have stood as a trusted leader in the comprehensive repair, rebuild, and restoration of all industrial gearboxes, gear drives, and complex transmission equipment. Our process is engineered to do one thing: return your equipment to service faster, operating at peak efficiency, and with reliability that meets or exceeds original specifications. We understand the pressures of minimizing costly downtime. That’s why we offer a solution that is technically superior and typically saves you up to 60% compared to the high cost and long lead times associated with purchasing new OEM units.

Our Technical Repair and Rebuild Protocol

Our Repair process is a systematic, nine-step protocol performed in our facility in Largo, Florida. This commitment to precision ensures absolute quality from initial diagnosis to final sign-off.

In-Depth Diagnostics and Failure Analysis

The process begins before disassembly. We utilize advanced Vibration Analysis and thermal imaging to establish baseline integrity and pinpoint the precise source of failure—be it bearing fatigue, gear tooth pitting, or misalignment. This data-driven approach allows us to correct the root cause, not just the symptom.

Comprehensive Cleaning and Nondestructive Testing (NDT)

The unit is completely disassembled, and all parts are thoroughly cleaned in specialized washing stations. Critical components, including shafts and housings, undergo Nondestructive Testing (NDT)—such as Magnetic Particle Inspection (MPI) or Dye Penetrant Inspection—to detect subsurface cracks and material fatigue invisible to the naked eye.

Precision Measurement and Reporting

Every gear, bearing journal, and mounting surface is meticulously measured by our Timken-Certified Technicians. Dimensions are logged against OEM tolerances and any deviation is documented in a detailed inspection report, providing a transparent roadmap for the required scope of work.

Housing and Casing Restoration

We specialize in restoring damaged gearbox casings. This includes Line Boring to correct bearing bore alignment and ensure that new components sit perfectly centered. We also repair mounting feet and flange surfaces to restore the structural integrity necessary for smooth, quiet operation.

Component Sourcing and Assembly

We only use premium, high-quality replacement parts, including high-grade bearings (such as Timken, SKF, FAG, NSK, etc) and seals. The gearbox is reassembled in a dedicated, clean environment, ensuring proper shimming, backlash, and gear pattern alignment are set to exact micro-tolerances.

Gear and Shaft manufacturing

This is where our expertise shines. If existing gears are beyond repair, we reverse-engineer the worn component. Our in-house gear manufacturing division then fabricates a new gear, utilizing precise hobbing and grinding techniques and subjecting it to specialized heat treatment (e.g., carburizing) to achieve Brinell and Rockwell hardness ratings that match or exceed the original OEM standard.

The 6-Hour Load Testing Protocol

Every repaired and rebuilt gearbox undergoes a rigorous 6-hour test run on a custom built test bench. This final step checks for minimal vibration, proper thermal stabilization, and zero leakage under simulated operating loads. If it doesn't pass, it doesn't leave.

Final Sealing and Painting

The unit is sealed with durable, industrial-grade sealants and finished with a robust protective coating, ready to withstand the harshest operating conditions.

Certification and Warranty

Upon passing, the unit is certified and delivered back to you, backed by our industry-leading 24-Month Warranty which goes into effect when you place that drive unit Back into production!

Critical Repair for All Industries

We are the go-to specialist for the sectors where reliability is paramount. Our team is accustomed to the complexities found in:
● Pulp and Paper: Repairing large-scale reduction gearboxes for mixers and roll drives.
● Plastics & Extrusion: Rebuilding high-thrust, continuous-duty extruder gearboxes.
● Food and Beverage: Providing precision repair that meets strict sanitary standards.
● Heavy Ag (Agriculture): Restoring transmissions, PTO systems, and differential drives for combines and tractors.
● Energy & Mining: Handling massive gear drives used in crushers, conveyors, and mills.

Need Emergency Repair? Don't Delay.

Our 24/7 Emergency Rush Gearbox Repair service is available to drastically cut down on your lead time. Combined with our free nationwide pickup, delivery, and quote service, we ensure the repair process is seamless from the moment you call until your equipment is back online.
Contact our experts now at (727) 607-7401 to initiate get your production back online!