NJ310  ECP Cylindrical Roller Bearings by SKF
NJ310  ECP Cylindrical Roller Bearings by SKF

SKF

Cylindrical Roller Bearings SKF NJ310 ECP

Technical data
 
Inner diameter
50 mm
Outer diameter
110 mm
Width
27 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
1,171 kg
Scale quantity Your discount Unit price
15 4,71 € 89,43 €
30 9,41 € 84,73 €
94,14 €
inkl. MwSt, zzgl. Versandkosten

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Cylindrical Roller Bearings SKF NJ310 ECP
In Stock

Cylindrical Roller Bearings SKF NJ310 ECP

The SKF NJ310 ECP cylindrical roller bearing, measuring 50x110x27 mm, combines high radial load capacity with single-direction axial guidance.

The NJ310 ECP cylindrical roller bearing is a single-row, open-type rolling bearing with an optimised internal design in the Explorer performance class. Thanks to its cylindrical rollers, this bearing unit can accommodate very high radial loads. With a bore diameter of 50 mm, an outside diameter of 110 mm and a width of 27 mm, the bearing is suitable for demanding industrial applications. The integrated polyamide cage ensures quiet operation and guides the rolling elements with precision.

What is the NJ310 ECP cylindrical roller bearing suitable for?

Typical applications include shaft mountings in mechanical engineering that are subjected primarily to radial loads. Due to its NJ design, this component functions as a support bearing: in addition to heavy radial loads, it also absorbs axial forces from one direction. In the opposite direction, the design allows for axial displacement. This specifically compensates for heat-induced changes in shaft length during operation and relieves stress on the adjacent structure.

What advantages do the polyamide cage and NJ design offer during assembly?

The material of the polyamide cage is characterised by its low weight and allows for an operating temperature range of -30 to +120 degrees Celsius. As the inner ring can be removed from one side, the bearing can be fitted separately: the inner and outer rings can be mounted on the shaft and housing independently of one another. The outer ring has neither a groove nor a lubrication bore. As an open variant, the bearing requires an external lubricant supply as well as protection against environmental contaminants.

What are the key features of the NJ310 ECP cylindrical roller bearing design?

The NJ design features two fixed flanges on the outer ring and one fixed flange on the inner ring. This enables the bearing to support axial loads in one direction. In the opposite direction, the design allows for axial compensation of the shaft. Furthermore, the inner ring can be easily removed during installation or maintenance work.

What are the dimensions of the NJ310 ECP cylindrical roller bearing?

The bearing has an inside diameter of 50 mm, an outside diameter of 110 mm and a width across flats of 27 mm. These dimensions comply with the standardised metric series for single-row cylindrical roller bearings. The component is designed with standard radial clearance and features standardised mounting dimensions for compatible housings and shaft seats.

What is the bearing’s tolerance class?

The dimensional accuracy complies with classes P0 and PN, or ABEC 1 respectively. In terms of running accuracy, the bearing meets the tighter tolerance class P6, or ABEC 3 respectively. This ensures smooth concentricity and reduces vibrations at standard industrial operating speeds.

What is the permissible operating temperature range for the NJ310 ECP?

The roller bearing is designed for a temperature range of -30 to +120 degrees Celsius. The integrated polyamide cage retains its elastic and damping material properties within this temperature range. When selecting a lubricant, care must be taken to ensure that the oil or grease is suitable for the same temperature range.

How is the open cylindrical roller bearing lubricated?

As the bearing is designed without integrated sealing washers and the outer ring has no lubrication bore, the lubricant is supplied via the adjacent structure. The bearing can be operated with grease or lubricating oil. External seals on the machine housing are required to protect the bearing from contamination and lubricant loss.

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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