A needle roller bearing is a special type of roller bearing which uses long, thin cylindrical rollers resembling needles. Ordinary roller bearings' rollers are only slightly longer than their diameter, but needle bearings typically have rollers that are at least four times longer than their diameter. Like all bearings, they are used to reduce the friction of a rotating surface.

Needle roller bearings are most commonly used in automobile, agricultural and construction components, including compressors, transmissions, gearboxes, pumps, torque converters, suspensions, U-joints and rocker-arm pivots. They’re also found in domestic appliances such as portable power tools, pump clutches and spindles.