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FAG
Cylindrical Roller Bearings FAG NU215 -E-XL-M1A-C3
- Technical data
- Inner diameter
- 75 mm
- Outer diameter
- 130 mm
- Width
- 25 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
- 1,4 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 10 | 10,59 € | 201,13 € |
| 20 | 21,17 € | 190,55 € |
Cylindrical Roller Bearings FAG NU215 -E-XL-M1A-C3
The FAG NU215 -E-XL-M1A-C3 cylindrical roller bearing is a single-row non-locating bearing measuring 75 × 130 × 25 mm, designed for high radial loads.
The FAG NU215 -E-XL-M1A-C3 cylindrical roller bearing, as a single-row roller bearing, accommodates high radial loads. Due to the NU design, the outer ring has two fixed flanges, whilst the inner ring is flangeless and can be removed from both sides. The bearing functions purely as a non-locating bearing, thereby compensating for axial length changes of the shaft relative to the housing without constraint. With key dimensions of a 75 mm bore, 130 mm outer diameter and 25 mm width, this version complies with tolerance class P0/PN or ABEC 1.
What is the NU215 -E-XL-M1A-C3 cylindrical roller bearing suitable for?
This single-row cylindrical roller bearing is particularly suitable for bearing arrangements subject to high radial loads where thermal linear expansion of the shaft occurs. Typical applications include rotating assemblies with a floating bearing function. As the outer ring has no lubrication groove or lubrication bore, the lubricant is supplied via the housing design. The open bearing covers an operating temperature range of -30 to +150 degrees and requires a clean installation environment with separate sealing.
What is the function of the M1A brass cage and the C3 bearing clearance?
The solid brass cage with external guidance (designation M1A) guides the rollers precisely, even under severe vibrations or rapid acceleration. Brass is characterised by high strength and good emergency running properties. The slightly increased C3 radial bearing clearance compensates for operational heating or tight fits, ensuring that no harmful preload develops during operation. Before installation, check that the fits of your shaft and housing are compatible with the C3 clearance group.
What are the main dimensions of the NU215 -E-XL-M1A-C3 cylindrical roller bearing?
The nominal dimensions are 75 mm internal diameter, 130 mm external diameter and 25 mm width. This is a single-row roller bearing with standard tolerance P0/PN or ABEC 1. Before fitting, you should adjust the bearing seat on the shaft and the housing bore to these nominal dimensions.
What does the NU design designation mean for this bearing?
In the NU design, the outer ring has two fixed guide flanges, whilst the inner ring has no flanges. This allows the inner ring to be removed from both sides and fitted separately. During operation, this free-running bearing design allows for axial displacement of the shaft relative to the housing, which compensates for thermal expansion without constraint.
What makes the M1A brass cage stand out?
The designation M1A refers to a one-piece solid brass cage that is guided on the outer ring. This design offers mechanical stability in the face of vibrations, shock loads and rapid changes in speed. The external guidance stabilises the movement of the cylindrical rollers, ensuring that the cage maintains smooth rolling element guidance even under demanding industrial operating conditions.
Why does the bearing have a clearance rating of C3?
The suffix C3 indicates a slightly increased radial bearing clearance compared with the standard clearance. This reserve prevents the radial clearance from being reduced to an impermissible level due to tight fits on the shaft and housing or due to temperature differences between the inner and outer rings. The C3 design is therefore particularly recommended for applications involving significant operational heating.
How is the open cylindrical roller bearing lubricated?
The lubricant must be supplied via the surrounding mounting structure, as the bearing has no seals and no lubrication groove. Suitable lubricants include lubricating oil or grease. To prevent the ingress of contaminants, external seals are required at the housing seal.
What temperature range is the bearing suitable for?
The permissible operating temperature range is between -30 and +150 degrees. The solid brass cage and the dimensional stability of the rings ensure compliance with this temperature range. When designing the lubrication system, care must be taken to ensure that the selected grease or oil is suitable for these operating temperatures.
Schaeffler Technologies AG & Co. KG
Industriestraße 1-3, 91074 Herzogenaurach, Germany
info.de@schaeffler.com, https://www.schaeffler.de/de/meta/impressum/
10004027