NJ230 -E-XL-M1-C3 Cylindrical Roller Bearings by FAG
NJ230 -E-XL-M1-C3 Cylindrical Roller Bearings by FAG

FAG

Cylindrical Roller Bearings FAG NJ230 -E-XL-M1-C3

Technical data
 
Inner diameter
150 mm
Outer diameter
270 mm
Width
45 mm
Roller rows
Single row bearing
Seal
None, open bearing
Cage
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
Support bearing (axial displacement), inner ring removable on one side
Temperature range
-30 to +150 °C
Weight
12,2 kg
Scale quantity Your discount Unit price
2 35,39 € 672,34 €
3 70,77 € 636,96 €
707,73 €
exkl. MwSt, zzgl. Versandkosten

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Cylindrical Roller Bearings FAG NJ230 -E-XL-M1-C3
In Stock

Cylindrical Roller Bearings FAG NJ230 -E-XL-M1-C3

The FAG NJ230 -E-XL-M1-C3 cylindrical roller bearing, a single-row support bearing with a 150 mm bore, offers high radial load-carrying capacity with axial guidance.

The FAG NJ230 -E-XL-M1-C3 cylindrical roller bearing is an open, single-row rolling bearing designed for demanding industrial applications. With a bore of 150 mm, an outer diameter of 270 mm and a width of 45 mm, this design can accommodate high radial loads. As a support bearing, it guides the shaft in an axial direction, whilst the inner ring remains removable from one side. The solid brass cage guides the cylindrical rollers precisely and is suitable for demanding operating conditions.

What is the NJ230 -E-XL-M1-C3 cylindrical roller bearing suitable for?

This cylindrical roller bearing is primarily used in industrial applications and shaft mountings subject to high radial loads. Thanks to the NJ design, the bearing also absorbs axial forces from one direction and allows axial displacement in the opposite direction. The design, which lacks a groove and lubrication bore in the outer ring, requires a targeted supply of lubricant via the surrounding housing. Thanks to its permissible temperature range of –30 to +150 degrees, the bearing operates stably even under conditions of increased operating heat.

When is the combination of a brass cage and C3 bearing clearance appropriate?

The increased radial clearance (C3) compensates for thermal expansion when temperature differences occur between the inner and outer rings or when tight fits are selected. It helps to prevent the rolling bearing from becoming unduly stressed during operation. The solid brass cage (M1) offers high strength against vibrations, impacts or high accelerations. Open bearings require clean ambient conditions and suitable external sealing, as dirt and moisture can penetrate unhindered.

What are the main dimensions of the NJ230 -E-XL-M1-C3 cylindrical roller bearing?

The bearing has an internal diameter of 150 mm, an external diameter of 270 mm and a width of 45 mm. These dimensions correspond to the standardised NJ230 series. Before fitting, you should adjust the bearing seat on the shaft and housing to these nominal dimensions.

What does the ‘NJ’ design designation mean for this cylindrical roller bearing?

In the NJ design, the outer ring has two fixed flanges and the inner ring has one fixed flange. The bearing acts as a support bearing and accommodates axial loads in one direction. In the opposite direction, the design allows for axial displacement. Furthermore, the inner ring can be removed from one side, which facilitates assembly.

Why does the bearing have a clearance rating of C3?

The designation C3 indicates a larger radial bearing clearance than the standard PN range. It is used when significant heating of the shaft or rings occurs during operation, or when tight fits reduce the bearing clearance. This ensures that the rolling elements continue to run smoothly even under thermal stress.

What are the key features of the M1 brass cage?

The M1 brass cage maintains the cylindrical rollers at a defined distance and guides them securely within the bearing. Brass is characterised by good sliding properties and high mechanical strength. This type of cage is therefore well suited to applications involving vibrations, shock loads or rapid changes in rotational speed in industrial drives.

How should the open cylindrical roller bearing be sealed?

This cylindrical roller bearing is designed as an open bearing without integrated sealing washers, meaning that the bearing location must be protected by the housing. Suitable housing seals, such as shaft seals or labyrinth seals, minimise the ingress of dirt and moisture. At the same time, the lubricant remains inside the bearing.

What is the temperature range for which the bearing is specified?

The component is designed for a temperature range of -30 to +150 degrees. Within this range, the components retain their dimensional stability and functionality. When selecting grease or lubricating oil, ensure that the lubricant is suitable for the actual operating temperature of the bearing location.

Schaeffler Technologies AG & Co. KG
Industriestraße 1-3, 91074 Herzogenaurach, Germany
info.de@schaeffler.com, https://www.schaeffler.de/de/meta/impressum/

10002532
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