Needle roller bearings are compact and lightweight rolling-element bearings that use cylindrical rollers with a high length-to-diameter ratio. They are designed to withstand high radial loads while occupying minimal radial space, making them ideal for applications with limited mounting space and high load requirements. These bearings feature needle-like cylindrical rollers that provide a large surface area for contact with the raceway, ensuring efficient load distribution and reduced friction. Needle roller bearings are commonly used in automotive transmissions, motorcycle engines, and industrial machinery, where they offer exceptional performance and reliability.