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FAG
Cylindrical Roller Bearings FAG NU2224 -E-XL-TVP2-C3
- Technical data
- Inner diameter
- 120 mm
- Outer diameter
- 215 mm
- Width
- 58 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
- Floating bearing, inner ring removable on both sides
- Temperature range
- -30 to +120 °C
- Weight
- 8,36 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 2 | 19,87 € | 377,49 € |
| 5 | 39,74 € | 357,62 € |
Cylindrical Roller Bearings FAG NU2224 -E-XL-TVP2-C3
The FAG NU2224 -E-XL-TVP2-C3 single-row cylindrical roller bearing offers high radial rigidity with dimensions of 120 x 215 x 58 mm.
The FAG NU2224 -E-XL-TVP2-C3 cylindrical roller bearing functions as a single-row non-locating bearing for industrial applications subject to high radial loads. The modified line contact between the rollers and raceways ensures even load distribution. The NU design features two fixed flanges on the outer ring, whilst the inner ring is flangeless and can be removed from both sides. This design allows both rings to be fitted separately and compensates for axial length changes in the shaft directly within the bearing.
What is the NU2224 -E-XL-TVP2-C3 cylindrical roller bearing suitable for?
Design engineers primarily use this floating bearing for bearing arrangements subjected exclusively to radial forces. As the inner ring has no guide flanges, the roller bearing allows axial displacement of the shaft relative to the housing in both directions. This prevents thermally induced stresses in the overall system. The bearing typically operates on the floating side in combination with a suitable fixed bearing, which provides axial guidance for the shaft.
What is the function of the polyamide cage and the C3 clearance in the NU2224?
The integrated polyamide cage (TVP2) guides the cylindrical rollers quietly and is characterised by its low weight. The elastic material properties of the cage dampen vibrations during operation. The slightly increased radial clearance (C3) provides greater clearance between the rolling elements and raceways. This additional clearance compensates for operational heating or tight fits, ensuring the bearing rolls freely. The open bearing is designed for a temperature range of -30 to +120 degrees.
What are the main dimensions of the NU2224 -E-XL-TVP2-C3 cylindrical roller bearing?
The cylindrical roller bearing has a bore of 120 mm, an outer diameter of 215 mm and a width across flats of 58 mm. These dimensions comply with the standardised specifications for metric roller bearings. The dimensional and running tolerances of the bearing comply with tolerance class P0/PN or ABEC 1 for standard applications in industrial engineering.
What does the designation ‘NU’ mean in relation to this cylindrical roller bearing?
The NU design denotes a non-locating bearing in which the outer ring has two fixed flanges, whilst the inner ring has no flanges. This allows the inner ring to be removed axially from either side. The bearing does not support any axial forces, but compensates for changes in the shaft’s length during operation with minimal friction.
What makes bearing air class C3 stand out in this bearing?
The designation C3 indicates a slightly increased radial clearance compared with the standard bearing clearance. This increased clearance between the rollers and raceways prevents the bearing from seizing should excessive heating or tight fits cause radial expansion. The bearing therefore has greater radial clearance prior to installation.
What are the characteristics of the TVP2 polyamide cage?
The cage, designated TVP2, is made of polyamide and ensures the rollers run very smoothly. The material absorbs impact loads and is characterised by its low weight. The material limits the permissible temperature range of the bearing to between -30 and +120 degrees, which is suitable for many industrial lubricants.
How is the NU2224 open cylindrical roller bearing sealed?
As this bearing is designed as an open type without integrated sealing washers, housing designs must incorporate external seals such as shaft seals or labyrinth seals. Depending on the design, the bearing can be operated with grease or lubricating oil. The outer ring has no lubrication bore, so lubricants must be introduced into the roller set from the side.
What are the advantages of the inner ring that can be removed from both sides?
The separable design simplifies the installation and maintenance of the bearing assembly. Fitters can mount the outer ring, together with the set of rollers, and the inner ring separately onto the shaft and housing. Furthermore, the flangeless raceway of the inner ring allows for free axial movement of the shaft relative to the bearing housing during operation.
Schaeffler Technologies AG & Co. KG
Industriestraße 1-3, 91074 Herzogenaurach, Germany
info.de@schaeffler.com, https://www.schaeffler.de/de/meta/impressum/
10020227