NJ2210  ECP Cylindrical Roller Bearings by SKF
NJ2210  ECP Cylindrical Roller Bearings by SKF

SKF

Cylindrical Roller Bearings SKF NJ2210 ECP

Technical data
 
Inner diameter
50 mm
Outer diameter
90 mm
Width
23 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
Support bearing (axial displacement), inner ring removable on one side
Temperature range
-30 to +120 °C
Version
Explorer
Weight
0,571 kg
Scale quantity Your discount Unit price
15 3,24 € 61,57 €
30 6,48 € 58,33 €
64,81 €
exkl. MwSt, zzgl. Versandkosten

202 ready to ship

Cylindrical Roller Bearings SKF NJ2210 ECP
In Stock

Cylindrical Roller Bearings SKF NJ2210 ECP

The SKF NJ2210 ECP cylindrical roller bearing, measuring 50x90x23 mm, offers high radial load-carrying capacity and axial guidance in one direction.

The NJ2210 ECP cylindrical roller bearing is a single-row rolling bearing in the SKF Explorer design for demanding industrial applications. Thanks to its cylindrical rollers, the design can withstand very high radial loads. The open bearing has an inner ring with a flange on one side, whilst the outer ring is flanged on both sides. This design enables the unit to function as a support bearing, guiding shafts in one axial direction and compensating for length changes in the opposite direction.

What loads can the NJ2210 ECP cylindrical roller bearing withstand when used as a support bearing?

Typical applications are found in mechanical engineering at bearing locations where heavy radial loads are present and the shaft must be axially guided on one side. As the inner ring is removable, the shaft and housing can be fitted separately. The permissible operating temperature range extends from –30 to +120 degrees Celsius, covering a wide variety of environmental conditions.

What advantages does the polyamide cage offer in this design?

The designation letter ‘P’ indicates that a polyamide cage is fitted. This material is characterised by its low weight, which reduces inertial forces during operation and promotes quiet, low-friction running. The bearing features a standard radial clearance and an optimised internal geometry. Furthermore, this design combines dimensional accuracy to Class P0 or ABEC 1 with increased running accuracy to Class P6 or ABEC 3 for precise concentricity.

What are the characteristics of the NJ design in the NJ2210 ECP cylindrical roller bearing?

The NJ design features two fixed flanges on the outer ring and one fixed flange on the inner ring. This enables the bearing to accommodate not only heavy radial forces but also axial forces in one direction. In the opposite direction, it allows for axial displacement of the shaft, thereby enabling thermal expansion to be compensated for without constraint.

What are the main dimensions of the NJ2210 ECP bearing?

The bearing has a bore diameter of 50 mm, an outer diameter of 90 mm and a width of 23 mm. The outer ring is smooth, meaning it has neither a ring groove nor a lubrication bore. Please check these mounting dimensions before fitting the bearing in its housing.

What are the tolerance classes for the cylindrical roller bearing?

Dimensional accuracy complies with the standard classes Normal or P0 and ABEC 1. For running accuracy, the tighter tolerance class P6 or ABEC 3 applies. This classification ensures precise concentricity and is suitable for industrial bearing assemblies with high performance requirements.

What does the abbreviation ECP stand for?

At SKF, this combination of letters stands for two key design features: the ‘E’ denotes an optimised internal design for improved load transfer, whilst ‘CP’ refers to the lightweight polyamide cage. This design reduces inertial forces and helps to minimise heat build-up.

How is the open cylindrical roller bearing lubricated?

As the bearing is supplied without integrated sealing washers, grease or lubricating oil is supplied via the housing design. In the case of open roller bearings, an external housing seal is required to minimise lubricant loss and prevent dirt particles from entering the raceway.

What is the operating temperature range of the NJ2210 ECP?

The approved operating range extends from -30 to +120 degrees Celsius. This range is largely determined by the polyamide cage. When designing the bearing assembly, the thermal load during continuous operation should remain within these limits in order to prevent material fatigue in the cage.

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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