NU205  ECP Cylindrical Roller Bearings by SKF
NU205  ECP Cylindrical Roller Bearings by SKF

SKF

Cylindrical Roller Bearings SKF NU205 ECP

Technical data
 
Inner diameter
25 mm
Outer diameter
52 mm
Width
15 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
0,134 kg
Scale quantity Your discount Unit price
25 1,75 € 33,34 €
35 3,50 € 31,59 €
35,09 €
inkl. MwSt, zzgl. Versandkosten

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Cylindrical Roller Bearings SKF NU205 ECP
In Stock

Cylindrical Roller Bearings SKF NU205 ECP

The SKF NU205 ECP cylindrical roller bearing offers high radial load capacity and functions as a separable idler bearing with main dimensions of 25x52x15 mm.

The SKF NU205 ECP single-row cylindrical roller bearing, as an open rolling bearing, accommodates high radial forces whilst maintaining a compact design. In the Explorer version, the bearing features an optimised internal design and a lightweight polyamide cage. With a bore of 25 mm, an outer diameter of 52 mm and a width of 15 mm, the unit complies with standardised mounting dimensions in mechanical engineering.

What is the NU205 ECP cylindrical roller bearing suitable for in practice?

Design engineers primarily use this version as a floating bearing. As the inner ring can be removed from both sides, the bearing compensates for axial length changes in the shaft directly from within. Typical applications include shaft mountings where thermal linear expansion occurs and, at the same time, significant radial forces act on the bearing location. As an open variant, the bearing is designed for operation with an external lubricant supply in clean housings.

What are the distinctive features of the polyamide cage and the free-running bearing design?

The integrated polyamide cage reduces friction due to its low weight and promotes quiet running within the temperature range of -30 to +120 degrees. The NU design also allows the inner and outer rings to be mounted separately on the shaft and housing. With dimensional accuracy to P0 and running accuracy to P6, the bearing combines defined fits with smooth running characteristics at normal radial clearance.

What are the dimensions of the NU205 ECP cylindrical roller bearing?

The bearing has a bore of 25 mm, an outer diameter of 52 mm and a width of 15 mm. These standardised key dimensions allow for direct installation in standardised bearing housings and on corresponding shaft seats.

What does the NU design designation mean for this bearing?

The designation NU refers to a cylindrical roller bearing in which the outer ring has two fixed flanges, whilst the inner ring is flangeless. This allows the inner ring to be removed from either side, which facilitates separate installation and enables the bearing to compensate for axial shaft expansion when used as a non-locating bearing.

What features does the ECP polyamide cage offer?

The suffix ECP indicates an optimised internal design featuring a polyamide cage. This material dampens vibrations, reduces the weight of the cage and is designed for operation within a temperature range of -30 to +120 degrees.

What are the bearing’s tolerance classes?

The bearing has dimensional accuracy to tolerance class P0 (equivalent to ABEC 1) for its main dimensions, as well as increased running accuracy to tolerance class P6 (equivalent to ABEC 3). This specification ensures smooth, even rotation during normal operation.

How is the open cylindrical roller bearing lubricated?

As this bearing is designed without integrated sealing washers, the lubricant must be supplied via the surrounding housing. Depending on the operating speed and ambient conditions, either external grease or oil lubrication is used for this purpose.

What is the clearance in the NU205 ECP cylindrical roller bearing?

This model is manufactured with standard radial bearing clearance. This standard radial clearance is designed for normal operating temperatures and typical fit conditions between the shaft and housing.

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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