Cylindrical roller bearing size summary

Cylindrical roller bearings are designed to handle heavy radial loads and operate at high speeds. They come in various sizes and configurations to suit different applications. Here’s a summary of the typical sizes and dimensions for cylindrical roller bearings:

Basic Designations

Cylindrical roller bearings are typically categorized by their design, denoted by specific series designations. Common series include:

N Series: Single row, inner ring has two flanges, outer ring has no flanges.

NU Series: Single row, outer ring has two flanges, inner ring has no flanges.

NJ Series: Single row, outer ring has two flanges, inner ring has one flange.

NUP Series: Single row, outer ring has two flanges, inner ring has one flange and a loose flange ring.

NF Series: Single row, outer ring has one flange, inner ring has two flanges.

NN Series: Double row, used for applications requiring high radial load capacity.

NNU Series: Double row, used for high radial load applications with greater rigidity.

Common Sizes and Dimensions

Cylindrical roller bearings come in a wide range of sizes. Here is a summary of typical dimensions for some of the common series:

NU Series

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