Bearings are popular used in heavy lifting gearboxes

Time：2021.04.26  Source：Roller Bearings Suppliers

The hundreds of offshore drilling platforms operating along the world’s continental shelves are some of the most expensive structures on the planet – in addition to being some of the most remote and vulnerable. The main danger to drilling operations out at sea is large waves created by hurricanes and other storms.

That’s why the jack-up oil rig is the most popular type of movable drilling platform, used in relatively shallow waters up to 120 metres deep. The threat of waves can be neutralized by jacking up the platform above the sea surface on three or four legs that rest on the ocean floor. Typically, each leg is equipped with three rack-and-pinion systems, and each rack-and-pinion system has six powerful gearboxes.

Given that massive investments and human lives are at stake, performance and reliability are crucial factors for designers and end users of the gearboxes that raise the oil rig platforms. Many rigs will operate for up to 20 years, during which time the gearboxes are expected to spend up to 2,000 hours lifting and lowering the vessel platforms. ZZ 22216-E1 bearings online , pls click here : 

CARB toroidal roller bearings are an obvious choice in applications where misalignment and axial displacement have to be accommodated – virtually without friction – within the bearing. More­over, due to its unique design CARB bearings also can accommodate very heavy loads. This enabled Hyosung engineers to maximize torque capacity in a smaller-sized gearbox without sacrificing gear meshing or efficiency.   ZZ 22219-E1 bearings online , pls click here :