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Bearings
Bearings
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Housings/housing Units
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Linear Technology
Linear Technology
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V-Belts
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Seals
FAG
Cylindrical Roller Bearings FAG NJ2311 -E-XL-TVP2
- Technical data
- Inner diameter
- 55 mm
- Outer diameter
- 120 mm
- Width
- 43 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
- Support bearing (axial displacement), inner ring removable on one side
- Temperature range
- -30 to +120 °C
- Weight
- 2,26 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 10 | 6,33 € | 120,36 € |
| 20 | 12,67 € | 114,02 € |
Cylindrical Roller Bearings FAG NJ2311 -E-XL-TVP2
The FAG single-row cylindrical roller bearing NJ2311 -E-XL-TVP2 (55x120x43 mm) acts as a support bearing for high radial forces and single-sided axial loads.
As a single-row cylindrical roller bearing, the FAG NJ2311 -E-XL-TVP2 accommodates very high radial forces. In the NJ version, the bearing has two fixed flanges on the outer ring and one fixed flange on the inner ring. This makes this model suitable for axially fixing a shaft in one direction, whilst allowing axial displacement in the opposite direction. With dimensions of a 55 mm bore, 120 mm outer diameter and 43 mm width, this open bearing offers impressive rigidity in continuous industrial operation.
What is the NJ2311 -E-XL-TVP2 cylindrical roller bearing suitable for?
This bearing is primarily used in bearing arrangements where heavy radial loads occur and the shaft needs to be axially supported on one side. As a support bearing, it compensates for changes in the shaft’s length by allowing the inner ring to move axially in one direction. Design engineers prefer to use the open design in enclosed housings where centralised oil or grease lubrication is provided. The standard radial clearance ensures smooth running under normal operating conditions.
What advantages does the TVP2 polyamide cage offer in this bearing?
The designation TVP2 indicates a solid polyamide window cage that precisely maintains the spacing between the cylindrical rollers. This material reduces the weight of the rotating parts, dampens running noise and promotes smooth running characteristics. The bearing is suitable for a temperature range of -30 to +120 degrees. As the inner ring can be removed from one side, the bearing can be dismantled. This simplifies separate mounting onto the shaft and housing.
What are the distinctive features of the NJ design in the NJ2311 -E-XL-TVP2 cylindrical roller bearing?
This design is characterised by two solid flanges on the outer ring and one solid flange on the inner ring. This construction enables the bearing to accommodate radial forces as well as unilateral axial forces. In the opposite direction, the bearing allows for axial displacement of the shaft, thereby compensating for thermal length changes without causing stress.
What are the dimensions of the NJ2311 -E-XL-TVP2 cylindrical roller bearing?
The dimensions are 55 mm internal diameter, 120 mm external diameter and 43 mm width. The bearings are manufactured to the standard tolerance class P0/PN (equivalent to ABEC 1). The outer ring has neither a ring groove nor lubrication holes, which is why lubricant must be applied from the side.
What does the suffix ‘TVP2’ in the model designation mean?
The suffix TVP2 denotes a polyamide window cage. This plastic cage is characterised by a low moment of inertia and good running characteristics. It helps to reduce noise and is suitable for operating temperatures between -30 and +120 degrees.
Why is the cylindrical roller bearing designed as an open bearing?
Without integrated sealing washers, the open design allows the external lubricant to circulate freely, for example in oil-lubricated assemblies with recirculation. For use in dusty or damp environments, the surrounding structure must be fitted with external seals.
What is the clearance in the NJ2311 -E-XL-TVP2 cylindrical roller bearing?
The roller bearing is manufactured with a standard radial clearance. This clearance is designed for standard fit conditions between the shaft and housing, as well as average operating temperatures. It is designed to ensure that the rollers can rotate freely even after being pressed in, without any undesirable stress build-up.
How do you fit the bearing?
Thanks to the inner ring, which can be removed from one side, the bearing can be dismantled. The inner ring can be fitted separately onto the shaft, whilst the outer ring, together with the set of rollers, can be fitted into the housing. This makes installation easier and reduces the risk of damage to the raceways.
Schaeffler Technologies AG & Co. KG
Industriestraße 1-3, 91074 Herzogenaurach, Germany
info.de@schaeffler.com, https://www.schaeffler.de/de/meta/impressum/
10002623