NU216  ECM Cylindrical Roller Bearings by SKF
NU216  ECM Cylindrical Roller Bearings by SKF

SKF

Cylindrical Roller Bearings SKF NU216 ECM

Technical data
 
Inner diameter
80 mm
Outer diameter
140 mm
Width
26 mm
Roller rows
Single row bearing
Seal
None, open bearing
Cage
Brass cage
Clearance
Normal radial clearance
Running accuracy
Dimensional accuracy P0/PN or ABEC 1, running accuracy P6 or ABEC 3
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 +150 °C
Weight
1,776 kg
Scale quantity Your discount Unit price
2 13,34 € 253,43 €
5 26,68 € 240,09 €
266,77 €
inkl. MwSt, zzgl. Versandkosten

12 ready to ship

Cylindrical Roller Bearings SKF NU216 ECM
In Stock

Cylindrical Roller Bearings SKF NU216 ECM

The SKF NU216 ECM cylindrical roller bearing, as an open idler bearing measuring 80x140x26 mm, accommodates high radial forces.

This single-row NU216 ECM cylindrical roller bearing features a solid brass cage and is characterised by its separable NU design. As the inner ring has no flanges and can be removed from both sides, the design compensates for axial length changes in the shaft directly within the bearing. This open-type bearing is designed for an operating temperature range of –30 to +150 degrees. It is manufactured to a dimensional accuracy of P0/PN (ABEC 1) and an enhanced running accuracy of tolerance class P6 (ABEC 3).

For which operating conditions is the NU216 ECM cylindrical roller bearing suitable?

Due to the line contact between the cylindrical rollers and the raceways, this design accommodates high radial loads in industrial bearing applications. As a floating bearing, the NU design prevents mechanical stress caused by thermal length changes in the shaft during operation. The P6 running accuracy ensures precise concentricity under demanding speed requirements in both stationary and mobile applications.

What are the distinctive features of the brass cage in this NU design?

The solid brass cage guides the cylindrical rollers precisely and is suitable for bearing arrangements subject to vibrations and shock loads. The material retains its dimensional stability across the entire temperature range from -30 to +150 degrees. As the outer ring is designed without a groove or lubrication bore, the bearing assembly requires a seal on the housing side as well as a lubricant supply directly into the bearing interior.

What are the dimensions of the NU216 ECM cylindrical roller bearing?

The bearing has an internal diameter (bore) of 80 mm, an external diameter of 140 mm and a width of 26 mm. These dimensions determine the required installation space on the shaft and within the housing.

What are the distinctive features of the NU design in cylindrical roller bearings?

In the NU design, the outer ring guides the rollers between two fixed flanges, whilst the flangeless inner ring remains removable from both sides. As a result, the bearing functions purely as a non-locating bearing and compensates for thermal length changes in the shaft without any constraint.

What are the bearing clearances and tolerance classes for this model?

The bearing features standard radial bearing clearance (CN) for normal operating conditions. In terms of tolerances, the manufacturing process combines the basic dimensional accuracy P0 (ABEC 1) with a finer running accuracy of class P6 (ABEC 3) to ensure precise concentricity.

What is the permissible temperature range for the NU216 ECM cylindrical roller bearing?

The permissible operating temperature range is from -30 to +150 degrees. The combination of dimensionally stable bearing rings and the brass cage allows the product to be used in industrial environments subject to thermal stress within these limits.

Why is an external seal required for this type of bearing?

This cylindrical roller bearing is designed as an open bearing and does not have any integrated sealing washers. Furthermore, the outer ring has neither a lubrication groove nor a lubrication bore. The surrounding housing must therefore prevent the ingress of dirt and retain the lubricant.

SKF Group
Sven Wingquists Gata 2, 415 50 Gothenburg, Sweden
info@skf.com, https://www.skf.com/uk/footer/site-ownership

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