SKF
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 25 | 2,76 € | 52,38 € |
| 35 | 5,51 € | 49,63 € |
The SKF NU208 ECP cylindrical roller bearing, a single-row idler bearing (40x80x18 mm), offers high radial load-carrying capacity in a compact design.
The SKF NU208 ECP cylindrical roller bearing is an open, single-row roller bearing with a cylindrical bore for purely radial loads. In the SKF Explorer version, the design features an optimised internal geometry. With dimensions of a 40 mm bore, 80 mm outer diameter and 18 mm width, the bearing can withstand high forces. Thanks to its standard radial clearance, this variant is suitable for common fit conditions in mechanical and plant engineering.
This single-row cylindrical roller bearing is primarily used in bearing arrangements where high radial forces act and axial displacement must be compensated for. As a loose bearing of the NU design, the inner ring can be removed from both sides. This allows the component to compensate for thermal length changes in the shaft during operation without any constraint. Typical applications are found in industrial bearing arrangements with high radial loads that require precise shaft guidance and separate ring mounting.
The integrated polyamide cage guides the cylindrical rollers quietly and reduces the weight of the rolling element assembly. The permissible operating temperature range is from –30 to +120 degrees Celsius. As the inner ring has no flanges, it can be fitted onto the shaft separately, which simplifies assembly. Please note that the open bearing has no integrated seals and should therefore be lubricated via the housing and protected from dirt.
The bearing has an inner diameter of 40 mm, an outer diameter of 80 mm and a width of 18 mm. These measurements define the standardised dimensions of the bearing. The single-row component is designed as a non-locating bearing and is operated without integrated seals.
In the NU design, the outer ring has two fixed guide flanges, whilst the inner ring is manufactured without flanges. This allows the inner ring to be removed from both sides and fitted separately. During operation, this geometry enables axial shaft expansion to be compensated for without constraint directly within the bearing.
The suffix ‘ECP’ stands for a polyamide cage and an optimised internal design. The polyamide cage dampens vibrations, reduces operating noise and is characterised by its low weight. The bearing is designed for a temperature range of -30 to +120 degrees Celsius.
The component combines dimensional accuracy in accordance with tolerance class P0/PN (equivalent to ABEC 1) with enhanced running accuracy in accordance with P6 (equivalent to ABEC 3). This combination ensures low-vibration operation and guarantees a precise fit in the housing and on the shaft.
As the open bearing is supplied from the factory without either seals or lubricant, lubrication is provided via the housing design. Depending on the operating conditions, either greases or oils are suitable. The outer ring has no groove or lubrication bore, which is why lubricant must be applied from the side.
SKF’s Explorer version is based on an optimised internal design of the cylindrical roller bearing. The rollers and raceways feature an improved profile that reduces edge stresses and promotes even load distribution during rolling contact. This ensures smooth force transmission under high radial loads.
SKF Group
Sven Wingquists Gata 2, 415 50 Gothenburg, Sweden
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