Needle bearings are made up of a range of bearings in which the rolling elements are called needles (they are actually cylinders with a very high length/diameter relation).
There are axial and radial bearings and their main feature is that they support higher loads in a single axial or radial axle depending on the type. They also occupy considerably less space.
There is a very wide range of bearing variations:
• Needle bushes
• Needle crowns (used when the axis and the housing can be used as a track for the roller)
• Needle bearings (with one or several rows of needles)
Their components and separability, etc. also vary.
They are suitable for many applications that require high speeds.