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Housings/housing Units
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FAG
Cylindrical Roller Bearings FAG NU240 -E-XL-M1A-C3
- Technical data
- Inner diameter
- 200 mm
- Outer diameter
- 360 mm
- Width
- 58 mm
- Roller rows
- Single row bearing
- Seal
- None, open bearing
- Cage
- With an outer ring riding machined 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
- Floating bearing, inner ring removable on both sides
- Temperature range
- -30 to +150 °C
- Weight
- 27,5 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 2 | 67,89 € | 1.289,87 € |
| 3 | 135,78 € | 1.221,98 € |
Cylindrical Roller Bearings FAG NU240 -E-XL-M1A-C3
The FAG NU240 -E-XL-M1A-C3 cylindrical roller bearing, measuring 200 x 360 x 58 mm, withstands high radial loads and compensates for axial length changes as a non-locating bearing.
The single-row cylindrical roller bearing NU240 -E-XL-M1A-C3 from FAG is designed for heavy radial loads in continuous industrial operation. With a bore of 200 mm, an outside diameter of 360 mm and a width of 58 mm, this version functions purely as a non-locating bearing. As the inner ring has no flanges and can be removed from both sides, the shaft can be moved axially relative to the housing within defined limits. The component complies with tolerance class P0/PN (ABEC 1) and has no electrical insulation.
In which applications is the NU240 -E-XL-M1A-C3 cylindrical roller bearing used?
This bearing is primarily suitable for heavy-duty machinery designs in which high radial forces act on large shafts and axial thermal expansion must be compensated for without causing stress. Typical applications include large industrial gearboxes and general heavy machinery construction. As the outer ring has fixed guide flanges, it guides the cylindrical rollers with high tracking accuracy. However, as a pure idler bearing, the cylindrical roller bearing does not absorb any axial forces, which is why a separate fixed bearing must always be provided in the overall design for axial guidance.
Why are the brass cage and C3 clearance crucial here?
The solid brass cage, which is guided externally, provides the rolling element set with high stability under severe vibrations, shocks or high accelerations. At the same time, the increased C3 clearance class serves to provide radial clearance during operation: it compensates for radial constrictions that may arise due to tight fits and operational temperature differences between the shaft and housing. The open bearing, which has no seals, is suitable for a temperature range of -30 to +150 degrees. As the outer ring has neither lubrication grooves nor lubrication holes, the lubricant is supplied from the side via the surrounding housing structure.
What does the NU design designation mean in the case of the NU240 -E-XL-M1A-C3 cylindrical roller bearing?
As a non-locating bearing, this design features two fixed flanges on the outer ring and a flangeless inner ring that can be removed from either side. This design allows for unimpeded axial movement between the shaft and the housing in both directions, but only accommodates radial forces.
What are the dimensions of the NU240 -E-XL-M1A-C3 cylindrical roller bearing?
With an internal diameter of 200 mm, an external diameter of 360 mm and a width of 58 mm, the component complies with standardised dimensions for heavy-duty industrial applications. These dimensions allow it to be integrated onto large shafts in suitable housings.
What characterises the C3 bearing clearance in this rolling bearing?
C3 specifies a slightly increased radial bearing clearance compared with the standard CN group. This additional internal clearance reduces the risk of stress when tight fit allowances or operational heating of the shaft cause the bearing clearance to narrow.
What are the features of the M1A cage?
The suffix M1A denotes a solid brass cage with an external guide. This solid cage design is characterised by high mechanical strength and is designed to withstand severe vibrations and dynamic stresses during continuous operation.
What is the operating temperature range for this bearing?
The permissible operating temperature range is from -30 to +150 degrees. As the design does not incorporate any elastomeric contact seals, the actual upper temperature limit in service depends largely on the resistance of the lubricant used.
How is the cylindrical roller bearing lubricated?
As the outer ring has no groove or lubrication bore, the lubricant enters the bearing from the end face. The open design requires effective external sealing of the bearing housing to prevent the ingress of dirt and the loss of grease or lubricating oil.
Schaeffler Technologies AG & Co. KG
Industriestraße 1-3, 91074 Herzogenaurach, Germany
info.de@schaeffler.com, https://www.schaeffler.de/de/meta/impressum/
10020200