Cranes are crucial pieces of machinery on building sites all around the world. They enable various phases of construction, from scaling the heights of skyscrapers in metropolitan areas to setting up trusses on the roofs of rural barns. With cranes, construction teams can operate with materials too heavy to move by hand.

A crane’s various components combine to form a substantial piece of machinery you can recognize from a great distance. The crane wheels are among the most crucial ones.

The function of crane wheels

Depending on the terrain, cranes can move about the job site thanks to their wheels and tracks. Wheels provide greater mobility when moving around a job site or traveling down the highway quickly. They’re the ideal choice for cranes working in uneven, muddy terrain.

Whether on the crane bogie or any other moving portion like the boom, turntable, or jib, crane wheels might be the weakest part of any crane setup. Each is constantly under pressure since it carries the weight of the crane and any loads suspended from it.

As a result, a crane wheel is an important part that, if it malfunctions, may render the entire crane useless until it is fixed or replaced. As a result, the crane must always have the sturdiest, best-quality wheels installed to ensure maximum dependability.

The hardness of the raw material—such as alloys, low-carbon steel, or medium-carbon steel—used to build the wheels, as well as the heat-treating procedures used to increase the metal’s hardness, are the two main determinants of the “toughness” of overhead crane wheels.

Due to its widespread availability and affordable price, medium-carbon steel is the most often used material for most crane wheels. This hardness is significant when the crane wheel hits the rail or tread. Crane wheels have a longer lifespan and experience less wear because of their reinforced tread.

Crane wheel flanges, on the other hand, shouldn’t be toughened. Flanges need the flexibility to flex under lateral stresses like a misaligned rail but not break. You don’t want parts of a shattered wheel flange threatening your workers.

Numerous manufacturers, like Kor Pak, heat treat crane wheels and other crane parts to make them harder. However, the results vary from one supplier to another. Ensure the company you purchase crane wheels has the knowledge and experience to consistently deep harden the tread.

Crane wheel maintenance

The crane’s weakest link may be its wheels, the only components directly touching the runway. They frequently exhibit the impacts of crane issues, such as misaligned rails.

Regular crane inspections, which include checking the wheels, can spot signs of early wheel wear and instruct on fixing problems before they do serious harm. It is advisable to measure and record the wheel flanges’ thickness to monitor the wear rate in between inspections. You may not need to worry if wheels only wear down a quarter of an inch after ten years. However, such wear after a few weeks may be a significant problem.

The takeaway

Investing in high-quality crane wheels can ensure prolonged efficiency and durability.