NJ304 -E-XL-TVP2-C3 Cylindrical Roller Bearings by FAG
NJ304 -E-XL-TVP2-C3 Cylindrical Roller Bearings by FAG

FAG

Cylindrical Roller Bearings FAG NJ304 -E-XL-TVP2-C3

Technical data
 
Inner diameter
20 mm
Outer diameter
52 mm
Width
15 mm
Roller rows
Single row bearing
Seal
None, open bearing
Cage
Polyamide 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
Support bearing (axial displacement), inner ring removable on one side
Temperature range
-30 to +120 °C
Weight
0,155 kg
Scale quantity Your discount Unit price
25 1,82 € 34,65 €
35 3,64 € 32,83 €
36,47 €
exkl. MwSt, zzgl. Versandkosten

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Cylindrical Roller Bearings FAG NJ304 -E-XL-TVP2-C3
In Stock

Cylindrical Roller Bearings FAG NJ304 -E-XL-TVP2-C3

The FAG single-row cylindrical roller bearing NJ304 -E-XL-TVP2-C3, with dimensions of 20x52x15 mm, offers high radial load-carrying capacity and axial support with increased bearing clearance.

As a radial roller bearing, the FAG NJ304 -E-XL-TVP2-C3 cylindrical roller bearing absorbs high radial forces. With compact main dimensions of 20 mm bore diameter, 52 mm outside diameter and 15 mm width, this design is suitable for demanding installation locations in mechanical engineering. As this is an open bearing without integrated seals, lubrication is provided flexibly via the housing design. The tolerance class P0/PN or ABEC 1 ensures precise fit dimensions for standardised shaft seats.

What is the NJ design suitable for in the NJ304 cylindrical roller bearing?

The NJ design is characterised by two fixed flanges on the outer ring and one fixed flange on the inner ring. As a result, this roller bearing functions as a support bearing that guides shafts in an axial direction and can accommodate axial forces. In the opposite direction, the inner ring – which can be removed from one side – allows for a defined displacement. This feature facilitates the separate assembly of both bearing rings and compensates for thermally induced changes in the shaft’s length during operation without causing binding.

What features do the polyamide cage and C3 clearance offer in this design?

The version with the suffix TVP2 features a lightweight polyamide cage, which promotes quiet running and exhibits low inertial forces during speed changes. At the same time, the slightly increased radial clearance (C3) provides sufficient operating clearance should temperature differences arise between the inner and outer rings, or should tight fits reduce the radial clearance. The permissible temperature range for use is from -30 to +120 degrees, opening up a wide range of applications in mechanical engineering.

What are the dimensions of the NJ304 -E-XL-TVP2-C3 cylindrical roller bearing?

The dimensions are 20 mm bore diameter, 52 mm outside diameter and 15 mm width. It is a single-row roller bearing in standard tolerance class P0/PN, with an outer ring that has no groove or lubrication hole.

What does the ‘NJ’ design designation mean for this roller bearing?

The designation NJ refers to a design featuring two fixed flanges on the outer ring and one flange on the inner ring. This allows the bearing to function as a support bearing. In addition to high radial forces, it also absorbs axial forces from one direction, whilst permitting axial displacement in the opposite direction.

Why is a C3 clearance suitable for the NJ304 cylindrical roller bearing?

Bearing clearance class C3 is greater than the standard radial clearance. It reduces the risk of the rollers seizing if fit allowances cause the inner ring to expand or if operational temperature differences arise between the shaft and the housing. This contributes to smooth running.

What are the distinctive features of the TVP2 cage?

The abbreviation TVP2 denotes a solid polyamide cage. This material is lighter than metal versions and reduces inertia. Furthermore, the cage is characterised by good damping properties and smooth operation during continuous use.

Within what temperature range can the open bearing be used?

The permissible operating temperature range is from -30 to +120 degrees. As the bearing is supplied without sliding seal rings, the lubricant selected for the associated assembly has a decisive influence on the actual temperature behaviour during operation.

Can the inner ring of the bearing be fitted separately?

The inner ring of this support bearing can be removed from one side. This feature makes it possible to press the inner and outer rings onto the shaft and housing independently of one another. When the assembly is fitted, the rollers slide into their final position whilst being guided axially.

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

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