Description
According to rings with or without ribs, can be divided into
NU, NJ, NUP, N,, NF, etc. single row bearings and NNU, NN etc.
double row bearings.
Cylindrical roller bearings mainly used for: large and medium-sized
motors, rolling stock, machine tool spindles, internal combustion
engines, generators, rolling mill and hoisting and conveying
machinery.
Single row cylindrical roller bearing
NU series: Without rib on the inner ring
NJ series: Single rib on the inner ring
NUP series: Single rib and flat on the inner ring
N series: Without rib on the outer ring
NF series: Single rib on the outer ring
Double row cylindrical roller bearing
NNU series: Without rib on the inner ring
NNU…K series: Without rib on the inner ring, with tapered
bore
NN…K series: With tapered bore
