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FAG
Cylindrical Roller Bearings FAG NU211 -E-XL-TVP2-C3
- Technical data
- Inner diameter
- 55 mm
- Outer diameter
- 100 mm
- Width
- 21 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
- 0,664 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 15 | 3,30 € | 62,75 € |
| 30 | 6,60 € | 59,45 € |
Cylindrical Roller Bearings FAG NU211 -E-XL-TVP2-C3
The NU211 -E-XL-TVP2-C3 cylindrical roller bearing from FAG Wälzlager, measuring 55x100x21 mm, is designed to accommodate high radial loads in free-running bearing arrangements.
The NU211 -E-XL-TVP2-C3 cylindrical roller bearing from FAG Rolling Bearings is a single-row radial roller bearing designed for demanding operating conditions. With a bore of 55 mm, an outer diameter of 100 mm and a width of 21 mm, this design accommodates high radial forces. The open non-locating bearing has two fixed flanges on the outer ring, whilst the inner ring is flangeless and can be removed from both sides. This design facilitates the separate installation of both bearing rings and compensates for axial length changes in the shaft during operation.
What function does the NU211 -E-XL-TVP2-C3 cylindrical roller bearing fulfil as a non-locating bearing?
In shaft mountings, this idler bearing reliably compensates for thermal length changes and deflection. As a classic idler bearing, the NU211 -E-XL-TVP2-C3 cylindrical roller bearing allows for unrestricted axial movement between the shaft and the housing. It is intended for use in bearing arrangements subject to predominantly radial loads. Due to the line contact of the cylindrical rollers, the rolling bearing can accommodate high transverse forces. However, this design is not intended for pure axial forces or combined loads.
What do a polyamide cage and C3 clearance mean in terms of design?
The specific component characteristics determine the operational behaviour under load. The designation TVP2 stands for a polyamide cage, which promotes smooth running and generates low inertial forces. The version with C3 bearing clearance has a slightly increased radial clearance compared with standard clearance. This helps to prevent the rolling elements from seizing if heat build-up or tight fits reduce the bearing clearance. The operating temperature range is from –30 to +120 degrees, and an external lubricant supply is required for the open bearing.
What are the dimensions of the NU211 -E-XL-TVP2-C3 cylindrical roller bearing?
With an internal diameter of 55 mm, an external diameter of 100 mm and a width of 21 mm, the bearing is designed to withstand radial loads. In the NU design, the outer ring has two fixed flanges, whilst the inner ring is flangeless. During assembly, both rings can be fitted separately onto the shaft and housing.
What does the C3 designation mean for this bearing?
C3 denotes a slightly increased radial bearing clearance compared with the standard CN version. This additional bearing clearance serves to compensate for operational influences. If the inner ring expands due to heat or if tight fits reduce the clearance, the low-friction running of the rollers is maintained and unacceptable preloads are avoided.
What are the features of the TVP2 cage?
The polyamide cage material is characterised by its low weight, good damping properties and quiet operation. The TVP2 design limits moments of inertia during acceleration and reduces friction losses. The material’s thermal properties define the bearing’s permissible operating temperature range from -30 to +120 degrees.
How is the NU211 open cylindrical roller bearing lubricated and sealed?
As an open bearing without integrated sealing washers, the installation point requires external seals in the housing cover or on the shaft. Industrial oils or greases are suitable for lubrication. As the outer ring has no groove or lubrication bore, lubricants are fed to the roller sets from the side.
Can the NU211 -E-XL-TVP2-C3 bearing withstand axial forces?
No, a NU-type cylindrical roller bearing is designed exclusively to support radial loads. As the inner ring, which has no flanges, can be removed from both sides, the shaft can move freely axially within the bearing. In designs, a separate fixed bearing must therefore provide axial guidance for the shaft.
What is the tolerance class of this FAG bearing?
In accordance with tolerance classes P0 and PN, the manufacture complies with the ABEC 1 classification. This standard accuracy class ensures defined dimensional and concentricity characteristics of the raceways on shafts and in housing bores in general mechanical and plant engineering.
Schaeffler Technologies AG & Co. KG
Industriestraße 1-3, 91074 Herzogenaurach, Germany
info.de@schaeffler.com, https://www.schaeffler.de/de/meta/impressum/
10003971