NU311 -E-XL-TVP2 Cylindrical Roller Bearings by FAG
NU311 -E-XL-TVP2 Cylindrical Roller Bearings by FAG

FAG

Cylindrical Roller Bearings FAG NU311 -E-XL-TVP2

Technical data
 
Inner diameter
55 mm
Outer diameter
120 mm
Width
29 mm
Roller rows
Single row bearing
Seal
None, open bearing
Cage
Polyamide cage
Clearance
Normal 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
Floating bearing, inner ring removable on both sides
Temperature range
-30 to +120 °C
Weight
1,48 kg
Scale quantity Your discount Unit price
15 3,71 € 70,46 €
30 7,42 € 66,75 €
74,17 €
exkl. MwSt, zzgl. Versandkosten

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Cylindrical Roller Bearings FAG NU311 -E-XL-TVP2
In Stock

Cylindrical Roller Bearings FAG NU311 -E-XL-TVP2

The FAG NU311 -E-XL-TVP2 cylindrical roller bearing (55x120x29 mm) withstands high radial loads and functions as a separable idler bearing in mechanical engineering.

The FAG NU311 -E-XL-TVP2 cylindrical roller bearing is a single-row rolling bearing designed for industrial applications. With a bore of 55 mm, an outside diameter of 120 mm and a width of 29 mm, the design withstands high radial loads. The line contact between the cylindrical rollers and the raceways enables a higher load-carrying capacity compared to deep-groove ball bearings of the same dimensions with point contact.

In which applications is the NU311 -E-XL-TVP2 cylindrical roller bearing used?

This radial roller bearing is particularly suitable for mounting positions where high radial forces occur and axial length changes in the shaft must be compensated for. Typical applications include mechanical drive trains and rotating shafts subject to purely radial loads. As the bearing is designed as a floating bearing, it allows for axial displacement of the shaft directly between the rollers and the inner ring, thereby preventing stress concentrations in the system.

What are the distinctive features of the NU design and the polyamide cage?

The NU design features two fixed flanges on the outer ring, whilst the inner ring is flangeless. This allows the inner ring to be removed from either side, which simplifies both installation and removal from the shaft. The integrated polyamide (TVP2) window cage guides the rolling elements quietly whilst being lightweight. The design is rated for operating temperatures from -30 to +120 degrees and complies with tolerance class P0 or ABEC 1.

What are the main dimensions of the NU311 -E-XL-TVP2 cylindrical roller bearing?

The bearing has an internal diameter of 55 mm, an external diameter of 120 mm and a width of 29 mm. These standardised dimensions allow for a precise replacement in existing machine designs and housings that are designed for this series.

What does the NU design designation mean for this cylindrical roller bearing?

In the NU design, the outer ring has two fixed flanges, whilst the inner ring is manufactured without flanges. This allows the inner ring to be withdrawn from either side. This feature enables axial displacement of the shaft relative to the housing in both directions, which is why the component functions purely as a non-locating bearing.

What are the key features of the TVP2 polyamide cage?

The suffix TVP2 denotes a window cage made of polyamide. This material is characterised by low friction, low weight and good damping properties. The cage maintains the rollers at a uniform distance and is designed for a temperature range of -30 to +120 degrees.

Is the NU311 -E-XL-TVP2 cylindrical roller bearing sealed?

No, this model is designed as an open bearing without integrated sealing washers. Lubricants can circulate freely, but this requires a suitably sealed bearing housing. Protection against dirt and moisture, as well as lubrication with grease or oil, must be provided by the surrounding structure.

What is the clearance and tolerance class of this roller bearing?

The bearing is manufactured with a standard radial clearance and complies with the standardised tolerance class P0 or ABEC 1 for standard precision. This specification is designed for typical industrial operating conditions with standard requirements for dimensional accuracy and concentricity.

Can the NU311 cylindrical roller bearing accommodate axial forces?

No, NU-type cylindrical roller bearings are, by design, unable to transmit axial forces. They are designed exclusively to support radial forces. For axial loads, the shaft must be axially fixed by a separate fixed bearing, such as a deep-groove ball bearing or an NUP-type cylindrical roller bearing.

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

10004732
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