Görgcsapágy

Görgcsapágy, also known as roller bearings, are a type of rolling-element bearing that uses cylindrical rollers to maintain the separation between the bearing races. Unlike ball bearings, which use spherical balls, the cylindrical shape of the rollers allows for a higher load-carrying capacity due to increased contact area. This makes them suitable for applications experiencing heavy radial loads.

There are several common types of roller bearings, including cylindrical roller bearings, spherical roller bearings, tapered roller bearings, and needle roller bearings. Cylindrical roller bearings are designed for high radial loads and moderate axial loads. Spherical roller bearings are self-aligning and can accommodate misalignment and heavy loads in both radial and axial directions. Tapered roller bearings are designed to handle both radial and axial loads simultaneously. Needle roller bearings, characterized by their long, thin rollers, are used where space is limited and high radial load capacity is required.

The materials used in roller bearings typically include high-carbon chromium steel for the races and rollers, often heat-treated to achieve desired hardness and durability. Lubrication is crucial for the proper functioning and longevity of roller bearings, reducing friction and wear between the rolling elements and races. They are widely employed in various industrial applications such as heavy machinery, automotive transmissions, gearboxes, and rolling mills due to their robustness and ability to withstand significant forces.