Mech-Line Engineering

Gearbox Overhaul for Industrial Processing Line

This project involved the mechanical inspection, strip-down and overhaul of an industrial gearbox used on a processing line operating under continuous production demand. The client reported increasing noise, vibration and rising operating temperature, with concern that a full failure could lead to unplanned downtime.

Our role was to assess the condition of the unit, identify the source of wear, carry out the necessary rebuild work, and return the gearbox to service in a reliable operating condition.

Site / Application

The gearbox was part of a heavy-duty industrial processing system used in a continuous production environment. The equipment operated under regular load and had been in service for an extended period without major rebuild work.

This type of application required a practical repair solution rather than immediate full replacement, due to production timing, cost and site operating requirements.

Scope of Work

The project : included

  • Removal and workshop intake inspection
  • Full strip-down of the gearbox assembly
  • Inspection of gears, bearings, seals and housing condition
  • Identification of wear patterns and mechanical damage
  • Replacement of worn bearings and seals
  • Cleaning and preparation of internal components
  • Reassembly with mechanical checks and tolerance review
  • Final testing and readiness for return to service

Challenges

The main issue was that the gearbox had developed mechanical wear over time, but the full condition was not visible until internal inspection was completed.

Key concerns included:

  • Increased vibration during operation
  • Excessive noise under load
  • Heat build-up around the gearbox housing
  • Wear affecting long-term reliability
  • Need to complete the repair within a practical timeframe

The client needed a repair path that was technically sound, commercially sensible and achievable without extended disruption.

Work Completed

After strip-down and inspection, the gearbox was rebuilt with replacement bearings and seals, cleaned internally, checked for alignment and reassembled in preparation for service return.

Additional attention was given to:

  • gear condition review
  • housing integrity
  • rotating component fit
  • reassembly quality control
  • general mechanical serviceability

This allowed the unit to be returned in a more stable and reliable condition.

Outcome

The rebuilt gearbox was prepared for return to service with improved mechanical condition, reduced risk of immediate failure and a more dependable operating outlook.

The project gave the client a practical alternative to full replacement while improving confidence in equipment reliability.

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