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FAG
Cylindrical Roller Bearings FAG NU312 -E-XL-TVP2
- Technical data
- Inner diameter
- 60 mm
- Outer diameter
- 130 mm
- Width
- 31 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
- 1,84 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 10 | 5,49 € | 104,25 € |
| 20 | 10,97 € | 98,77 € |
Cylindrical Roller Bearings FAG NU312 -E-XL-TVP2
The FAG NU312 -E-XL-TVP2 cylindrical roller bearing, measuring 60x130x31 mm, provides a robust support for high radial forces.
As a single-row cylindrical roller bearing, the NU312 -E-XL-TVP2 absorbs high radial forces and guides shafts with precision. Thanks to the line contact of the cylindrical rollers, the component can withstand high loads. As an open design without an integrated seal, this roller bearing is designed to be lubricated via the surrounding machine housing. The integrated polyamide cage guides the rollers with low friction and ensures smooth running during continuous operation.
What is the NU312 -E-XL-TVP2 cylindrical roller bearing suitable for?
In mechanical engineering, this roller bearing primarily functions as a pure support bearing. 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 both sides, which compensates for thermal length changes in the shaft without constraint within the bearing. Typical applications include bearing locations where high radial loads occur and axial shaft expansion must be compensated for.
What are the key features of the TVP2 polyamide cage?
The designation TVP2 refers to a bearing with a polyamide cage. This material is characterised by its low weight and elastic properties. This results in reduced inertial forces during changes in rotational speed and favourable running characteristics. Furthermore, the design allows for separate mounting of the bearing rings, enabling the inner and outer rings to be fitted to the shaft and housing independently of one another.
What does the NU design designation mean in the case of the NU312 -E-XL-TVP2 cylindrical roller bearing?
The designation NU identifies a cylindrical roller bearing whose outer ring has two fixed guide flanges, whilst the inner ring has no flanges. This allows the inner ring to move axially relative to the roller set. This design accommodates radial forces only and serves as a typical floating bearing to compensate for shaft expansion.
What are the dimensions of the NU312 -E-XL-TVP2 cylindrical roller bearing?
The bearing has an internal diameter of 60 mm at the cylindrical bore. The external diameter is 130 mm and the width is 31 mm. These dimensions make the roller bearing suitable for compact installation spaces in industrial mechanical engineering.
What is the temperature range for which the bearing is designed?
The bearing is specified for an operating temperature range of -30 to +120 degrees Celsius. The upper limit is largely determined by the TVP2 polyamide cage and the lubricant used. Within this temperature range, the polyamide cage retains its dimensional stability and mechanical strength.
What is the bearing clearance and tolerance class of this component?
The cylindrical roller bearing is manufactured with a standard radial clearance, which is designed for typical fit selections and standard operating temperatures. It is manufactured to tolerance class P0/PN, which corresponds to tolerance class ABEC 1. This ensures precise concentricity in mechanical engineering.
Why does the NU312 -E-XL-TVP2 cylindrical roller bearing not have a seal?
As an open roller bearing, this model is designed for use in oil- or grease-lubricated housings, where external sealing systems protect the bearing seat. The absence of abrasive sealing elements minimises friction and allows the lubricant to circulate freely through the surrounding system.
How is the cylindrical roller bearing fitted?
As the inner ring can be removed from both sides, the inner and outer rings can be fitted separately onto the shaft and into the housing respectively. This simplifies installation in the case of tight fits. When assembling the components, the rollers must be inserted in a centred position to prevent damage to the raceways and rolling elements.
Schaeffler Technologies AG & Co. KG
Industriestraße 1-3, 91074 Herzogenaurach, Germany
info.de@schaeffler.com, https://www.schaeffler.de/de/meta/impressum/
10004747