When the Gearbox Starts Failing, Production Usually Hears It First
NNG evaluates industrial gearboxes, identifies wear and damage, and helps restore dependable power transmission through repair, rebuilding, exchange or replacement.
- Industrial Gearboxes
- Repair or Exchange Options
- Legacy Equipment Support
GEARBOX INSPECTION | COMPLETE REBUILDS | GEAR & SHAFT SERVICE | BEARING REPLACEMENT | EXCHANGE OPTIONS | OBSOLETE COMPONENT SUPPORT
Industrial Gearbox Repair & Rebuild Services
Gearbox problems can begin with noise, heat, vibration, backlash or inconsistent movement. Left unresolved, internal wear can damage gears, shafts, bearings, housings and related machine components. NNG Industries provides inspection, repair, rebuilding, machining, exchange and replacement support for gearboxes used in CNC machines, production equipment and other industrial applications. The goal is to evaluate the entire gearbox assembly and identify the most practical path based on its condition, replacement availability, repair history and production requirements.
Gearbox Inspection & Evaluation
Disassembly and inspection support for gears, shafts, bearings, seals, housings and related internal components.
Gearbox Repair
Repair support for localized wear, damaged components, leakage and mechanical performance issues.
Complete Gearbox Rebuilding
Rebuilding support involving disassembly, cleaning, component replacement, machining, reassembly and testing where applicable.
Gear, Shaft & Journal Service
Machining and restoration support for worn gears, shafts, journals, keyways and related drive components.
Bearing, Seal & Internal Component Replacement
Replacement and sourcing support for bearings, seals, bushings and other internal wear components.
Exchange & Replacement Options
Exchange-unit evaluation and sourcing support when repair is not the best option for the application or timeline.
Receive → Disassemble → Inspect → Approve → Rebuild → Test
Gearbox Problems Require More Than Replacing the Loudest Part
Noise or vibration may point to a damaged bearing, but the underlying cause may involve alignment, lubrication, shaft wear, gear contact or housing damage. NNG evaluates the condition of the full assembly so the service recommendation reflects the actual failure rather than only the most obvious symptom.
Restore dependable power transmission and mechanical performance. Repair decisions based on the condition of the complete assembly.
Gearboxes & Drive Assemblies We Support
NNG supports a range of gearboxes and mechanical drive systems used across CNC machines and industrial production equipment. Service availability depends on the manufacturer, gearbox type, condition, technical information, operating requirements and parts availability.
Support for Current and Legacy Equipment
NNG may assist with discontinued or difficult-to-source gearboxes when repairable components, drawings, dimensional information or qualified replacement options remain available.
Project Evaluation
Depending on the request, NNG may review machine information, gearbox model, ratio, speed, load, lubricant condition, failure symptoms and maintenance history.
Gearbox Types
- Machine tool gearboxes
- Spindle gearboxes
- Speed reducers
- Right-angle gearboxes
- Planetary gearboxes
- Parallel-shaft gearboxes
Internal Components
- Gears
- Shafts
- Bearings
- Bushings
- Seals
- Spacers
- Couplings
- Housings
Common Applications
- CNC machine tools
- Turning centers
- Machining centers
- Industrial production machines
- Drive systems
- Automated equipment
- Specialty machinery
The Right Path...
The right option depends on the condition of the gears and shafts, housing integrity, repair history, replacement availability and production priorities.
Repair
Correct localized wear or component damage when the gearbox remains serviceable.
Rebuild
Restore the assembly through complete disassembly, component replacement, machining, reassembly and testing.
Exchange
Replace
Source a new, rebuilt, used, OEM or qualified aftermarket gearbox when repair is not practical.
GEARBOX REPAIR QUESTIONS
What Customers Need to Know
Answers to common questions about evaluation, testing, exchange availability and what to send with a service request.
What information should I provide?
Send the machine manufacturer and model, gearbox manufacturer and model, serial number, ratio, symptoms, photos, operating history and required timing.
What gearbox problems can NNG evaluate?
NNG may evaluate noise, vibration, overheating, backlash, leakage, reduced output, damaged gears, worn bearings and shaft-related problems.
Does NNG perform complete gearbox rebuilds?
Complete rebuilding may be available depending on the gearbox type, condition, parts availability and required scope.
Can NNG repair obsolete gearboxes?
Support may be possible when the gearbox can be identified, measured, repaired or matched to a qualified replacement.
Are exchange gearboxes available?
Exchange availability depends on the manufacturer, model, ratio, configuration and current inventory.
What testing is performed after repair?
Testing may include rotational checks, backlash evaluation, leak inspection, dimensional verification and functional testing appropriate to the completed work.
Can NNG machine replacement gearbox components?
Machining support may be available for qualifying shafts, journals, housings and other components. Gear manufacturing and tooth repair should be confirmed case by case.
Need Gearbox Repair or Exchange Support?
Send the machine and gearbox information, symptoms, photos, operating history and required timing. NNG will review the request and help identify the most practical repair, rebuilding, exchange or replacement path.