INA machined needle roller bearings NK and NKI are successful machine elements for the design of radially compact bearing arrangements with very high load carrying capacity. They consist of machined bearing rings and needle roller and cage assemblies with cages made from either plastic or deep drawn steel strip. Bearings of series NKI have an inner ring while series NK is supplied without an inner ring. Bearings without an inner ring are most suitable if the shaft can be hardened and ground.
Publisher: Schaeffler (UK) Ltd