Bearings

Your current position:Products >Bearings
  • Cylindrical roller bearing

    Product introduction

    In a single row cylindrical roller bearing, the rollers are always guided between the integral “open” flanges on one of the rings. These “open” flanges combined with the specially designed and surface finished roller ends, provide improved lubrication, reduced friction and consequently lower operating temperature.

    The ring with the integral flanges together with the cylindrical roller and cage assembly can be separated from the other ring. This results in easy mounting and dismounting, particularly where the load conditions are such that interference fits are required for both rings.

    Our single row cylindrical roller bearings can accommodate heavy radial loads and high speeds. They are manufactured in several different designs, the main difference being in the configuration of the flanges.

     

    1. NU design

    The outer ring of an NU-design bearing has two integral flanges while the inner ring has no flanges (a). Axial displacement of the shaft with respect to the housing can be accommodated in both directions.

     

    1. N design

    The inner ring of an N-design bearing has two integral flanges while the outer ring has no flanges (b). Axial displacement of the shaft with respect to the housing can be accommodated in both directions.

     

    1. NJ design

    The outer ring of an NJ-design bearing has two integral flanges and the inner ring has one integral flange (c). These bearings can locate the shaft axially in one direction.

     

    1. NUP design

    The outer ring of an NUP-design bearing has two integral flanges and the inner ring has one integral flange and one non-integral flange in the form of a loose flange ring (d). These bearings can be used as locating bearings to locate the shaft axially in both directions.

     

    1. NU+HJ execution

    An NU –type bearing combined with an HJ angle ring (e) can be used to locate the shaft axially in one direction. SKF recommends not to fit standard angle rings at both sides of an NU-type bearing as this can lead to axial compression of the rollers.

     

    1. NJ+HJ execution

    An NJ-type bearing combined with an HJ angle ring (f) can be used to locate the shaft axially in both directions.

     

    1. RNU design

    NU-design cylindrical roller bearing without an inner ring

     

    1. RN design

    N-design bearings without an outer ring