Roller bearings(also known as rolling-element bearings )are similar to ball bearings in that they are designed to carry a load while minimizing friction.
However, roller bearings transmit loads using cylinder rolling elements, rather than balls, to maintain the separation between moving parts of the bearing. They have a wide, flat bearing to provide stability in high-speed applications with high radial loads.
These versatile bearings can contain single or multiple rows of rolling elements; multiple rows can significantly improve radial load capacity. Also, the use of different roller shapes can further reduce friction and support both radial and axial loads.
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