NZ’s Trusted Gearbox Manufacturer

Renold is an established gearbox manufacturer with in-house design, production, and application engineering—backed by over 150 years of global power transmission heritage.

Whether you’re specifying a gearbox for a new plant built, sourcing a replacement unit for a breakdown, or looking for a refurbishment on an existing drive, we carry the range and expertise to match the right gearbox to your application.

A Gearbox Range Built for Performance

Every application has different torque, speed, and space requirements. As an established industrial gearbox supplier in New Zealand, Renold provides a complete product range, not a limited catalogue. Our gearbox range is designed and manufactured within a BS EN ISO 9001-certified quality assurance system, with each unit engineered for reliable power transmission across demanding operating conditions.

What sets Renold apart from other industrial gearbox manufacturers is the breadth of the gearbox itself. A gearbox rarely operates in isolation—it’s part of a drive system. We supply the full system, which means better compatibility, fewer sourcing headaches, and a single point of accountability for your drive train.


Gearbox Servicing and Refurbishment

Renold doesn’t just sell gearboxes; we maintain them. Our Auckland-based team provides on-site gearbox inspection, condition monitoring, and full refurbishment services for all makes and types.

For operations running older units or third-party gearboxes, our service capability means you’re not locked into replacing equipment that still has usable life.

Our refurbishment process covers gear inspection and measurement, bearing replacement, seal upgrades, and realignment—returning units to OEM-equivalent performance without the lead time or cost of a new gearbox.


Need Help Selecting the Right Industrial Gearbox

Our NZ-based engineering team can review your application and recommend the best solution, whether that’s a standard reduction unit, a heavy-duty helical drive, or a custom-designed gearbox for a one-off specification.

Browse our industrial gearbox range or call +64 9 828 5018 to speak with our Auckland team directly.

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Frequently Asked Questions

What are the key components of an industrial gearbox?

An industrial gearbox is made up of gears (helical, bevel, worm, or planetary), shafts (input and output), bearings, seals, and a housing that holds everything in alignment under load.

The gear type determines how torque and speed are transferred; helical gears suit high-power parallel shaft drives, bevel gears handle right-angle configurations, and planetary gears deliver high torque density in a compact envelope. Bearings and seals are often the first components to wear, which is why regular inspection and oil analysis matter for long service life.

Can your industrial gearbox manufacturers design custom solutions for a specific application?

Our engineering team designs gearboxes to meet specific application requirements, including non-standard ratios, mounting configurations, and environmental conditions.

As a trusted gearbox manufacturer, we work directly with mechanical engineers and procurement teams from initial specification through to commissioned unit.

How often should an industrial gearbox be serviced or inspected?

It depends on the application, operating hours, and environment. As a general guide, most gearboxes should have oil analysis and visual inspection every 6 months, with a full service interval of 12-18 months under standard operating conditions. High-load, high-temperature, or contaminated environments may require more frequent checks.

Our Auckland team can set up a condition monitoring programme tailored to your specific equipment and operating conditions.


Looking for Something Else?

Beyond gearboxes, Renold is one of New Zealand's leading providers of industrial transmission solutions, supplying heavy-duty industrial chain, industrial conveyor chain, stainless steel sprockets, worm gearbox units, leaf chain, couplings, brakes, and fluid power components from our Auckland facility.

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