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SKF
Cylindrical Roller Bearings SKF NUP217 ECP
- Technical data
- Inner diameter
- 85 mm
- Outer diameter
- 150 mm
- Width
- 28 mm
- Roller rows
- Single row bearing
- Seal
- None, open bearing
- Cage
- Polyamide 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
- Version2
- Improved interior construction
- Design
- Fixed bearing
- Temperature range
- -30 to +120 °C
- Version
- Explorer
- Weight
- 1,895 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 2 | 9,31 € | 177,11 € |
| 5 | 18,64 € | 167,78 € |
Cylindrical Roller Bearings SKF NUP217 ECP
The SKF NUP217 ECP cylindrical roller bearing, a fixed bearing with an 85 mm bore and an outer diameter of 150 mm, provides reliable guidance under high radial loads.
The NUP217 ECP cylindrical roller bearing is a single-row roller bearing in the SKF Explorer design with an optimised internal structure. Fitted with a lightweight polyamide cage, this open roller bearing handles heavy radial forces and, thanks to its special flange design, simultaneously accommodates axial forces in both directions. The combination of P0 dimensional accuracy and enhanced P6 running accuracy ensures precise concentricity in demanding industrial drives.
What functions does the NUP design perform in operation?
As a classic fixed bearing, this design secures the shaft axially in both directions relative to the housing. The outer ring has two fixed flanges, whilst the inner ring has one fixed flange and one loose flange disc. Designs with shafts guided on both sides utilise this type to absorb high radial forces whilst precisely defining the axial position of the rotating shaft.
What distinguishes the polyamide cage of the ECP design?
The suffix ‘ECP’ denotes the optimised internal geometry in combination with a polyamide cage. This cage reduces the component weight and ensures low-friction guidance of the cylindrical rollers. This design is suitable for an operating temperature range of -30 to +120 degrees Celsius. As this is an open bearing, you can select the lubricant and external housing seals to suit the specific operating environment.
What are the key features of the NUP217 ECP cylindrical roller bearing?
This single-row cylindrical roller bearing from SKF has a bore of 85 mm, an outer diameter of 150 mm and a width of 28 mm. It combines an optimised internal design with a polyamide cage and, thanks to two flanges on the outer ring and a flange and flange disc on the inner ring, functions as a fixed bearing secured on both sides.
What is the function of the NUP fixed bearing design?
In addition to primary radial loads, the NUP design also accommodates axial forces from both directions. Thanks to the fixed inner ring flange on one side and the loose flange disc on the other, the bearing guides rotating shafts precisely in their axial position, thereby eliminating the need for additional axial retaining bearings at the bearing location.
What are the bearing’s tolerance classes?
The bearing offers dimensional accuracy in accordance with Class P0 or ABEC 1, and finer running accuracy in accordance with Class P6 or ABEC 3. This combination ensures dimensionally stable fit dimensions whilst reducing runout error during operation, which contributes to the smooth running of modern powertrains.
What temperature range is the bearing suitable for?
The version with a polyamide cage is designed for operating temperatures between -30 and +120 degrees Celsius. Within this range, the cage material retains its elastic and guiding properties. To ensure safe operation, select a lubricant whose thermal operating limits cover this range.
What type of lubrication does the open cylindrical roller bearing require?
As an open roller bearing, this variant does not have integrated sealing washers. Depending on the application and rotational speed, the bearing is lubricated via the housing using grease or via an oil circulation system. At the same time, the outer housing design protects the interior of the bearing housing from the ingress of dirt and moisture.
What does ‘normal radial bearing clearance’ mean for this bearing?
Standard radial bearing clearance refers to the internal radial clearance of the rollers between the raceways in their as-supplied condition. It is designed for standard fits and operating temperatures, so that after being pressed onto the shaft and heated during operation, a reliable bearing clearance is established without any jamming.
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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