As climate change and resource deletion become more serious, countries are looking to invest in environmental technology and renewable energy. The gearbox is a key component that helps produce power in many green machines, which is why ensuring the quality of your gearbox is so important.

gearbox inspectionThe gearbox is a vital component of transmissions in most automobiles, orther motor-powered vehicles and turbines. Quality issues and other product noncomformities involving the gearbox can result in less serious issues, such as engine rattling, to more serious engine failure.

That's why it's important to have gearboxes and other engine components checked by a professional during or shortly after the production process. Product inspection by a qualified third-party inspection company helps importers verify the gearbox and other parts manufactured overseas.

Some of the well-known techniques QC staff commonly use to in gearbox inspection protocols include the following:

Visual inspection

  • Gears are inspected to ensure their design comforms with ANSI/AGMA 6013-B16 and ANSI/AGMA 6113-B16.
  • Pinion bearings, pitch tube, gears and torque arms are visually inspected to ensure there aren’t any cracks, leaks or seized sections in the gearbox.

Functional inspection

  • A vibration test checks the vibration levels when the gearbox is operational. High vibration levels usually mean there's a problem in the mechanics or gears.
  • Temperature tests are performed to ensure the gearboxes can withstand high temperuatures from seal friction, bearing friction and oil churning.
  • A lubricating oil analysis tests to see if the lubricating oil has the required viscosity. If the oil is too thin, it can lead to machinery problems like gear wear and harmful deposits.

Acoustical inspection

  • An acoustical noise measurement test records gear mesh frequency levels when the gearbox is operating at various speeds.

There are some internationally recognized QC standards commonly used for inspecting a gearbox, including:

IEC 61400-4

The International Electrotechnical Commission developed IEC 61400-4 which contains the design specifications for wind turbine gearboxes.

AGMA 6006-A03

The American Gear Manufacturers Association developed 6006-A03 which serves as a guidleine for designing, manufacturing, procuring, operating and maintaining gearboxes used for wind turbines.

4 ways importers conduct product inspections ebook

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