NUP2308  ECP Cylindrical Roller Bearings by SKF
NUP2308  ECP Cylindrical Roller Bearings by SKF

SKF

Cylindrical Roller Bearings SKF NUP2308 ECP

Technical data
 
Inner diameter
40 mm
Outer diameter
90 mm
Width
33 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
Fixed bearing
Temperature range
-30 to +120 °C
Version
Explorer
Weight
0,984 kg
Scale quantity Your discount Unit price
15 3,95 € 75,15 €
30 7,90 € 71,20 €
79,10 €
inkl. MwSt, zzgl. Versandkosten

28 ready to ship

Cylindrical Roller Bearings SKF NUP2308 ECP
In Stock

Cylindrical Roller Bearings SKF NUP2308 ECP

The SKF NUP2308 ECP cylindrical roller bearing, measuring 40x90x33 mm, offers high radial load capacity and axial guidance when used as a fixed bearing.

The NUP2308 ECP cylindrical roller bearing is a single-row rolling bearing designed for demanding industrial applications involving high radial forces. This SKF design belongs to the Explorer performance class and features an optimised internal design. Designed as a fixed bearing, this bearing accommodates radial loads as well as axial forces from both directions. With dimensions of a 40 mm bore, 90 mm outer diameter and 33 mm width, the unit is suitable for robust shaft mountings.

What loads can the NUP2308 ECP cylindrical roller bearing accommodate?

This cylindrical roller bearing is used in bearing arrangements where, in addition to high radial forces, axial forces act in both directions. Thanks to the line contact of the cylindrical rollers, the design can withstand high radial forces. The NUP design serves to fix the shaft axially at both ends, so that the bearing arrangement acts as a fixed bearing and limits axial displacement.

What are the functions of the NUP design and the polyamide cage?

The NUP design features two fixed flanges on the outer ring, one fixed flange on the inner ring and a separate loose flange disc. This arrangement guides the rollers precisely and enables the bearing to accommodate axial loads on both sides. The integrated polyamide cage reduces friction and the weight of the rolling element set, which promotes smooth running. The open bearing allows for targeted lubrication with oil or grease for an operating temperature range of -30 to +120 degrees.

What are the distinctive features of the NUP design in the NUP2308 ECP cylindrical roller bearing?

The NUP design denotes a fixed bearing with two fixed flanges on the outer ring, one fixed flange on the inner ring and a loose flange disc. This design guides the shaft in both axial directions and also accommodates high radial loads. The component thus serves as a fixed bearing in mechanical assemblies.

What are the dimensions of the NUP2308 ECP cylindrical roller bearing?

The bearing has a bore of 40 mm, an outer diameter of 90 mm and a width of 33 mm. These dimensions allow for a precise fit when installed in housings and on shafts designed to accommodate these bearing dimensions.

What are the characteristics of the integrated polyamide cage?

The polyamide cage guides the cylindrical rolling elements evenly between the raceways. This cage material is characterised by its low weight and favourable friction coefficients. The permissible temperature range for the bearing with this cage is from -30 to +120 degrees.

What tolerance class and bearing clearance does this bearing have?

The bearing is manufactured with standard radial bearing clearance. In terms of dimensional accuracy, it complies with tolerance class P0 or ABEC 1, whilst its running accuracy is specified to class P6 or ABEC 3. This combination ensures precise concentricity under standard fit conditions.

How is the NUP2308 ECP open cylindrical roller bearing lubricated?

As the bearing is designed as an open type without integrated seals, lubrication is provided via the housing environment, using either lubricating oil or grease. External housing seals protect the bearing assembly from the ingress of contaminants and moisture during operation.

What does the ‘Explorer’ designation mean in relation to this SKF bearing?

SKF’s Explorer class features an optimised internal design of the raceways and rolling elements. This modified surface finish improves the formation of the lubricating film between the rolling elements and the raceways, reduces friction peaks and minimises edge loading at the ends of the rollers under load.

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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