NUP228 -E-XL-M1-C3 Cylindrical Roller Bearings by FAG
NUP228 -E-XL-M1-C3 Cylindrical Roller Bearings by FAG

FAG

Cylindrical Roller Bearings FAG NUP228 -E-XL-M1-C3

Technical data
 
Inner diameter
140 mm
Outer diameter
250 mm
Width
42 mm
Roller rows
Single row bearing
Seal
None, open bearing
Cage
Brass cage
Clearance
Slightly increased radial clearance
Running accuracy
Tolerance class P0/PN2 / ABEC 1
Current insulation
No current insulation
Bore
Cylindrical bore
Outer ring
Without groove/lubrication holes
Design
Fixed bearing
Temperature range
-30 to +150 °C
Weight
9,81 kg
Scale quantity Your discount Unit price
2 43,15 € 819,79 €
3 86,30 € 776,64 €
862,94 €
exkl. MwSt, zzgl. Versandkosten

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Cylindrical Roller Bearings FAG NUP228 -E-XL-M1-C3
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Cylindrical Roller Bearings FAG NUP228 -E-XL-M1-C3

The FAG NUP228 -E-XL-M1-C3 cylindrical roller bearing is designed as a fixed bearing with a 140 mm bore for high radial loads and axial guidance in both directions.

The FAG NUP228 -E-XL-M1-C3 cylindrical roller bearing withstands very high radial forces and provides axial guidance for shafts in both directions. Thanks to its NUP design, this single-row roller bearing functions as a fixed bearing in demanding industrial drives. With dimensions of a 140 mm bore, 250 mm outer diameter and 42 mm width, this open bearing offers a dimensionally stable design for mechanical engineering. The component is integrated into housing designs in which a controlled external lubricant supply is provided.

What is the NUP228 -E-XL-M1-C3 cylindrical roller bearing suitable for as a fixed bearing?

This single-row cylindrical roller bearing is particularly suitable for bearing arrangements and industrial drives in which axial forces occur in addition to high radial forces. The fixed flange on the inner ring and the loose flange plate accommodate axial displacement of the shaft and limit movement in both directions. Design engineers utilise this fixed-bearing characteristic to position rotating shafts. Thanks to its solid brass cage, the bearing is also suitable for accelerations and vibration-intensive operating conditions in continuous industrial operation.

What features do the brass cage and the C3 clearance offer?

The -E-XL-M1-C3 variant is characterised by a guided brass cage and a slightly increased radial clearance of class C3. The solid brass cage offers strength with low wear, which proves particularly effective under shock loads. The C3 bearing clearance helps to ensure that the bearing continues to run smoothly even when the shaft or housing components undergo thermal expansion. At operating temperatures ranging from -30 to +150 degrees, the increased radial clearance compensates for any fit allowances and temperature gradients between the inner and outer rings.

What is the function of the NUP design in the NUP228 -E-XL-M1-C3 cylindrical roller bearing?

The NUP design denotes a cylindrical roller bearing that functions as a fixed bearing. The outer ring has two fixed flanges, whilst the inner ring has one fixed flange and one loose flange disc. This design provides axial support for the shaft in both directions whilst simultaneously withstanding very high radial loads.

What are the dimensions of this cylindrical roller bearing?

The bearing has an inner diameter of 140 mm, an outer diameter of 250 mm and a width of 42 mm. It complies with the standard tolerance P0/PN or ABEC 1. The outer ring is designed without a lubrication groove or bore, which ensures that the bearing fits flush within the housing.

What does the suffix C3 mean for this roller bearing?

The designation C3 indicates a slightly increased radial bearing clearance compared with the standard version. This additional clearance between the rollers and the raceway reduces the risk of seizing should temperature differences arise between the shaft and the housing during operation, or should tight fits reduce the bearing clearance after press-fitting.

Why is a brass cage used in the M1 version?

The suffix M1 denotes a solid brass cage. Brass is characterised by high strength, good run-on properties and vibration damping. This type of cage is suitable for environments with severe vibrations, fluctuating speeds or shock loads in industrial bearings.

What is the permissible temperature range for the FAG NUP228 -E-XL-M1-C3?

The bearing is designed for operating temperatures ranging from -30 to +150 degrees. As this is an open cylindrical roller bearing without integrated contact seals, the actual temperature resistance during operation depends largely on the thermal stability of the selected grease or lubricating oil within the surrounding bearing assembly.

How is the open cylindrical roller bearing lubricated and sealed?

As this open roller bearing does not come with sealing washers as standard, sealing is provided by the surrounding machine structure, for example by means of shaft seals or labyrinth seals. Depending on the installation situation, lubrication is provided via oil circulation systems or on-demand grease filling to keep out contaminants and maintain a stable lubricating film.

Schaeffler Technologies AG & Co. KG
Industriestraße 1-3, 91074 Herzogenaurach, Germany
info.de@schaeffler.com, https://www.schaeffler.de/de/meta/impressum/

10018141
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