Cylindrical Roller Bearings
The cylindrical roller bearings consist of straight geometry for the outer ring, inner ring and roller. The cage can be polyamide, steel or brass. The outer and inner rings are separable. These bearing can accommodate high radial load as the roller make line contact with the raceway. The bearings are available in a number of designs and sizes. Different types of bearings are designated as NU, NJ, NUP, N, NF and NH for single-row bearings and NNU & NN for double-row bearings.
Depending on the type of flange on the inner or outer, Cylindrical Roller Bearings are classified into the following types:
Single Row Cylindrical Roller Bearing
Single row roller bearings are used in all traction motors for electric locomotives and electric cars. These bearings are utilized due to their high-speed and heavy-load capabilities, as well as their ease of assembly and disassembly. Insulated bearings were developed for traction motors.
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