Cylindrical roller bearing is separable bearing with easy
mounting and dismounting characteristics. There are single row,
double row and four row cylindrical roller bearings. Cylindrical
roller bearings are classified by the rib types. The outer
ring of a NU-type bearing has two ribs and the inner ring has no
rib. The inner ring of a N-type bearing has two rib and the outer
ring has no rib. NU-type and N-type cylindrical roller bearings are
used at a floating end. As seperable bearings, they are easy for
assembly and dismantle, with tight fit suitable ofr both inner and
outer rings. The outer ring of a NJ-type cylindrical roller bearing
has two ribs and the inner ring has one, being able to endure the
axial force in one direction. A NUP-type cylindrical roller bearing
is used at an fixed end, being able to endurre the axial forces in
two directions. The outer rings of such bearings have two ribs
each, and the inner rings have one fixed rib and one movable rib
each. One NJ-type cylindrical roller bearing and one angle ring HJ
make up of a fixed-end bearing similar to NUP type. The enhanced
cylindrical roller bearing can carry a high load, with 2 E, *2E, 3
E and *3E series as the basic designs. Their rollers are designed
to carry a maximum load. Cylindrical roller bearing is mainly
applied in electrical motors, machine tools, oil production, steel
mills, loading and moving machineries and other industrial
machineries.
