Cylindrical Roller Bearing

Cylindrical Roller Bearing Manufacturer

ZEUS cylindrical roller bearings are available in many designs, series and sizes. The major design differences between the bearings presented in this section are in:

  • the number of roller rows (one, two or four)
  • the type of cage (with, without or special designs)
  • the configuration of the inner and outer ring flanges (position and number of guide flanges)

In bearings of this type, the cylindrical rollers are in linear contact with the raceways. They have a high radial load capacity and are suitable for high speeds.

There are different types designated as NU, NJ, NUP, N, NF (for single-row bearings), NNU, and NN (for double-row bearings depending on the design or absence of side ribs).

The outer and inner rings of all types are separable.

Some cylindrical roller bearings have no ribs on either the inner or outer ring, so the rings can move axially relative to each other. These can be used as free-end bearings. Cylindrical roller bearings, in which either the inner or outer rings has two ribs and the other ring has one, are capable of taking some axial load in one direction Double-row cylindrical roller bearings have high radial rigidity and are used primarily for precision machine tools.

Though initially designed for heavy radial loads, these cylindrical roller bearings can also tolerate light-to-intermittent thrust loads at speeds comparable to ball bearings. They are separable, and can be dismantled to help accommodate an easy fit. Each features steel rollers, and an increased capacity design. The outer ring has 2 ribs, and the inner ring has zero ribs. The X-Life design includes a superior finish and improved basic dynamic load ratings and rating life. Models with a “C3” suffix in the Mfr. Model No feature a radial clearance greater than normal.

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