Needle roller cages

Needle roller and cage assemblies are among the basic components of needle roller bearings. They are fitted with a cage so that they do not separate from each other. The use of this roller and cage allows for a compact and lightweight design using a shaft or housing as a direct bearing surface, without the use of an inner or outer ring. The needles are guided by the cage more precisely than full complement rollers, allowing the bearing to operate at high speeds. In addition, its rigidity and load capacity are high for a specific space.