NU2320  ECP Cylindrical Roller Bearings by SKF
NU2320  ECP Cylindrical Roller Bearings by SKF

SKF

Cylindrical Roller Bearings SKF NU2320 ECP

Technical data
 
Inner diameter
100 mm
Outer diameter
215 mm
Width
73 mm
Roller rows
Single row bearing
Seal
None, open bearing
Cage
Polyamide cage
Clearance
Normal radial clearance
Running accuracy
Dimensional accuracy P0/PN or ABEC 1, running accuracy P6 or ABEC 3
Current insulation
No current insulation
Bore
Cylindrical bore
Outer ring
Without groove/lubrication holes
Version2
Improved interior construction
Design
Floating bearing, inner ring removable on both sides
Temperature range
-30 to +120 °C
Version
Explorer
Weight
11,78 kg
Scale quantity Your discount Unit price
2 29,17 € 554,13 €
3 58,33 € 524,97 €
583,30 €
inkl. MwSt, zzgl. Versandkosten

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Cylindrical Roller Bearings SKF NU2320 ECP
In Stock

Cylindrical Roller Bearings SKF NU2320 ECP

The SKF NU2320 ECP cylindrical roller bearing (100x215x73 mm) is a single-row non-locating bearing that accommodates high radial loads and allows for axial movement of the shaft.

The NU2320 ECP cylindrical roller bearing is a single-row roller bearing designed for industrial applications involving high radial loads. This open roller bearing has a bore of 100 mm, an outside diameter of 215 mm and a width of 73 mm. In the SKF Explorer version, the design features an optimised internal geometry. In the NU design, the outer ring has two fixed flanges, whilst the inner ring is flangeless. This allows the inner ring to be removed from both sides, which facilitates the separate assembly of the shaft and housing.

What is the NU2320 ECP cylindrical roller bearing suitable for?

This cylindrical roller bearing is primarily used as a non-locating bearing when pure radial forces are to be supported. As the inner ring has no flanges, the shaft and ring slide freely relative to one another during thermal linear expansion. Typical applications include shaft mountings where components experience axial movement due to loads or temperature changes. The open bearing design allows for targeted lubrication with oil or grease via the machine housing.

What are the distinctive features of the version with a polyamide cage?

The integrated polyamide cage guides the cylindrical rollers evenly within the raceway. The material dampens vibrations and is suitable for operating temperatures ranging from –30 to +120 degrees. In the design, dimensional accuracy to tolerance class P0 (ABEC 1) and the increased running accuracy P6 (ABEC 3) must be taken into account. As the bearing is manufactured without an integrated seal, sealing is provided by the surrounding housing structure.

What are the dimensions of the NU2320 ECP cylindrical roller bearing?

With an internal diameter of 100 mm, an external diameter of 215 mm and a width of 73 mm, the bearing requires a clearly defined installation space. Thanks to its single-row roller arrangement, the roller bearing can transmit high radial forces. These main dimensions serve as the starting point for the design of the shaft and housing seat.

What does the NU design designation mean for this bearing?

As a NU-type loose bearing, the bearing has two fixed guide flanges on the outer ring, whilst the inner ring has no flanges. This allows the inner ring to be moved axially in both directions or removed completely. This design compensates for changes in the shaft’s length during operation without applying axial forces.

Within what temperature range can the bearing be operated?

With a temperature range of -30 to +120 degrees, the bearing is designed for thermally demanding operating environments. This operating range is limited, amongst other things, by the material of the polyamide cage. When selecting the lubricant for the housing, care must be taken to ensure that the oil or grease is specified for the same temperature range.

Why is the cylindrical roller bearing supplied without a seal?

As an open bearing, this version does not feature any factory-fitted sealing washers. This allows designers to choose between lubrication with grease or circulating oil, depending on the specific requirements of the plant. Protection against dust and moisture in this design is provided by external sealing elements in the surrounding bearing housing.

What is the significance of the tolerance classes specified?

This combines dimensional accuracy of class P0 or ABEC 1 with improved running accuracy to P6 or ABEC 3. The dimensions for the bore and outer ring comply with the current standard, whilst the concentricity adheres to tighter tolerances. This ensures smooth shaft operation at higher speeds.

What makes the SKF Explorer version stand out?

The ‘SKF Explorer’ designation indicates an optimised internal design of the cylindrical roller bearing. The roller profiles and raceways are geometrically matched to distribute loads evenly. Combined with the standard radial clearance, this results in stable operational behaviour under defined installation conditions.

SKF Group
Sven Wingquists Gata 2, 415 50 Gothenburg, Sweden
info@skf.com, https://www.skf.com/uk/footer/site-ownership

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