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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 NJ320 -E-XL-M1-C3
- Technical data
- Inner diameter
- 100 mm
- Outer diameter
- 215 mm
- Width
- 47 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
- 8,53 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 2 | 34,26 € | 651,04 € |
| 3 | 68,53 € | 616,77 € |
Cylindrical Roller Bearings FAG NJ320 -E-XL-M1-C3
The FAG NJ320 -E-XL-M1-C3 cylindrical roller bearing, measuring 100x215x47 mm, with a brass cage and increased clearance (C3), offers high radial load-carrying capacity as a support bearing.
The FAG NJ320 -E-XL-M1-C3 cylindrical roller bearing is a single-row radial roller bearing designed for heavy mechanical loads. With a bore of 100 mm, an outside diameter of 215 mm and a width of 47 mm, this design can accommodate considerable radial forces. Designed as an open support bearing, the inner ring guides the rolling elements on one side and allows axial displacement of the shaft in one direction. This facilitates the compensation of thermal length changes in industrial drive trains and heavy-duty units.
What is the NJ320 -E-XL-M1-C3 cylindrical roller bearing suitable for?
The bearing is designed for shaft mountings subject to high radial loads. Thanks to its NJ design, the unit serves as a support bearing. In addition to radial forces, it also accommodates axial loads from one direction, whilst axial expansions in the opposite direction remain stress-free within the bearing. The inner ring can be removed from one side, which simplifies the separate assembly of the inner and outer rings.
What is the function of the brass cage and the C3 clearance?
The solid brass cage (M1) guides the cylindrical rollers stably during vibrations or shock loads. The increased radial clearance (C3) compensates for operational heating and tight fits without causing the rolling elements to become stressed. With a permissible temperature range of –30 to +150 degrees, the component is suitable for thermally demanding operating conditions. As the outer ring has no groove or lubrication bore, the lubricant is supplied via the adjacent structure.
What are the main dimensions of the NJ320 -E-XL-M1-C3 cylindrical roller bearing?
The bearing is rated for a bore diameter of 100 mm, an outer diameter of 215 mm and a width of 47 mm. It is a single-row roller bearing in standard tolerance class P0/PN or ABEC 1, without integrated sealing washers.
What characterises the NJ design in this rolling bearing?
As a thrust bearing, the NJ design features two fixed shoulders on the outer ring and one fixed shoulder on the inner ring. This design guides the shaft axially in one direction, whilst allowing a defined amount of axial displacement in the opposite direction.
What does the ‘C3’ designation mean in relation to bearing clearance?
The designation C3 indicates an increased radial bearing clearance compared with the standard version. This additional clearance compensates for thermal expansion of the components at higher operating temperatures and helps to prevent the rollers from seizing up in tight-fitting seats.
What are the advantages of the M1 brass cage?
The solid brass cage is characterised by high strength and low wear. It withstands mechanical inertial forces, accelerations and vibrations. Furthermore, brass exhibits favourable emergency running properties, which enhances the operational reliability of the bearing assembly.
How is the open bearing lubricated?
As the bearing is of an open design and the outer ring has no lubrication groove, grease or lubricating oil is supplied directly via the surrounding housing structure. The choice of lubricant depends on the operating speed, load and the temperature range from -30 to +150 degrees.
Why can the inner ring be removed from one side only?
As the bearing can be dismantled, the inner ring and outer ring, together with the roller set, can be fitted separately onto the shaft and housing. This simplifies mechanical installation in complex machine designs and facilitates subsequent maintenance and inspection work on the bearing assembly.
Schaeffler Technologies AG & Co. KG
Industriestraße 1-3, 91074 Herzogenaurach, Germany
info.de@schaeffler.com, https://www.schaeffler.de/de/meta/impressum/
10002963