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Cylindrical roller bearing structure and characteristics
 
Cylindrical roller line contact with the raceway, large radial load capacity, both suitable to withstand heavy load and shock load, but also for high-speed rotation.
     N type and NU type can move axially, able to adapt to changes due to thermal expansion or installation of shaft and housing caused by the relative position of the error, the most suitable for free end bearings.
     NJ type and NF type can withstand a certain degree of axial load, NH type and NUP type can withstand a certain degree of axial load. Inner or outer ring detachable, easy assembly and disassembly.
     Rigidity NNU and NN-type anti-radial load, mostly for machine tool spindle.
     FC.FCD.FCDP type can withstand higher radial loads, mainly used for rolling mill rolls.
    Such bearings are mainly used for medium and large motors, generators, internal combustion engines, gas turbines, machine tool spindles, deceleration devices, handling machinery, industrial machinery.

Single row cylindrical roller bearings
NU-type and N-type allows the shaft relative to the housing within a certain range for axial movement, therefore suitable for use as a free end bearings.
NJ type and NF type can withstand a certain degree of axial load.
NUP type and NFP type can withstand a certain degree of both directions of axial movement, therefore suitable for use as a free end bearings.

Double row cylindrical roller bearings
Double row cylindrical roller bearings Cylindrical and tapered bore two kinds.
Another hole and the outer ring of the bearing sump.
These bearings are mostly used for machine tool spindles, but can also be used for other occasions.