Roller Cylindrical Bearing (NU/NJ/NUP)

Roller Bearings, Cylindrical Bearing

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).

We supply these type: NU/NJ/NUP/N/NJ+HJ/NF/NN/NN K/NNU/NNU K/NN K

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.

N design

Inside track with two unitary flanges, while outside track without flange. Axes's axial displacement to bearing block can be endured by bearing from two directions. Therefore, these bearings usually used as non position end bearings.

NU design

The outside track of NU design bearings has two unitary flanges, while inside track without flange. Axis's axial displacement to bearing block can be duded by bearing from two directions. Therefore, these bearings usually used as non position end bearings. Due to the reason of manufacture and maintenance, two flanges of outside track of NU design big bearings showed on drawing maybe not unitary, but with loose fit-up flange rings.

NJ design

Outside track has two unitary flanges, inside track also with one unitary flange. Therefore, these bearings suitable for the axial orientation of axes from one direction.

NUP design

Outside track have two unitary flanges, while inside track with one unitary flange and one non-unitary flange in form of loose fit-up flange rings. These bearings can be used as position end bearings, that is to say can offer the axial orientation of axes from two directions.



Model: NU/NJ/NUP/N/NJ+HJ/NF/NN/NN K/NNU/NNU K/NN K W33/NNU K/W33 Series.