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SKF
Cylindrical Roller Bearings SKF NJ315 ECP/C3
- Technical data
- Inner diameter
- 75 mm
- Outer diameter
- 160 mm
- Width
- 37 mm
- Roller rows
- Single row bearing
- Seal
- None, open bearing
- Cage
- Polyamide cage
- Clearance
- Slightly increased 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
- Support bearing (axial displacement), inner ring removable on one side
- Temperature range
- -30 to +120 °C
- Weight
- 3,374 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 2 | 9,29 € | 176,44 € |
| 5 | 18,57 € | 167,16 € |
Cylindrical Roller Bearings SKF NJ315 ECP/C3
The SKF NJ315 ECP/C3 single-row cylindrical roller bearing offers high radial load capacity with a 75 mm bore, 160 mm outer diameter and 37 mm width.
This open NJ315 ECP/C3 cylindrical roller bearing is designed as a support bearing and, in addition to high radial forces, also accommodates axial forces in one direction. The inner ring has a fixed flange and can be removed from one side, which facilitates the separate installation of the inner and outer rings. Thanks to its optimised internal design and lightweight polyamide cage, this roller bearing is suitable for demanding industrial applications within a temperature range of -30 to +120 degrees.
What functions does the NJ315 ECP/C3 cylindrical roller bearing perform as a support bearing?
In mechanical assemblies, this design absorbs significant radial loads and guides shafts axially in one direction. As the outer ring is designed without a groove or lubrication bore, the lubricant is supplied via the surrounding housing. The open system allows for the choice of oil or grease as the lubricant, tailored to the respective environmental conditions.
What are the characteristics of the polyamide cage and C3 bearing clearance?
The suffix ECP denotes a polyamide cage, which ensures smooth running thanks to its low mass. The slightly increased radial clearance (C3) compensates for heat build-up during operation or tight fits, preventing the component from becoming distorted. With dimensional accuracy to P0/PN (ABEC 1) and running accuracy to P6 (ABEC 3), the bearing combines standard tolerances with precise concentricity under dynamic loads.
What does the ‘NJ’ design designation mean in the case of the NJ315 cylindrical roller bearing?
As a support bearing, the NJ design features two fixed flanges on the outer ring and one fixed flange on the inner ring. This enables the bearing to accommodate radial loads as well as axial forces from one direction and allows the inner ring to be removed from one side.
What are the dimensions of the NJ315 ECP/C3 cylindrical roller bearing?
With a bore of 75 mm, an outside diameter of 160 mm and a width of 37 mm, the bearing complies with the standardised main dimensions for single-row cylindrical roller bearings in this size series.
What are the characteristics of the C3 bearing clearance for this bearing?
The C3 version has a larger radial bearing clearance than the standard value. This prevents the rolling elements from becoming stressed when tight-fit seats are fitted to the shaft and housing, or when operational heating occurs.
What does the suffix ‘ECP’ stand for at SKF?
The designation ‘ECP’ refers to an optimised internal design combined with a polyamide cage. This material reduces the moment of inertia in the bearing and ensures low-vibration operation within the permissible temperature range.
What is the permissible temperature range for the bearing?
The permissible temperature range is from -30 to +120 degrees. The upper temperature limit is determined by the material properties of the polyamide cage used.
Is the bearing sealed or open?
As an open component, the bearing has no integrated seals. Therefore, protection against dirt and lubricant leakage must be provided externally via the housing design.
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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