A needle bearing, also known as a needle roller bearing, is a specialized type of roller bearing characterized by its small cylindrical rollers, known as needles. These needles have a high length-to-diameter ratio, enabling them to handle high radial loads within a compact space. Needle bearings are commonly used in applications where the available space is limited and where high load-carrying capacity is essential, such as in automotive transmissions, industrial gearboxes, and small appliances. The design of needle bearings allows them to accommodate both radial and axial loads while maintaining a low profile. Their efficiency in managing loads and conserving space makes them indispensable in various industries requiring precise and reliable rotational movement.