NU 208 ECP (Cylindrical Roller bearing)
The NU 208 ECP is a Cylindrical Roller bearing with boundary dimensions of 40 x 80 x 18 mm (bore x outside diameter x width). It has a basic dynamic load rating of 56 kN and a basic static load rating of 53 kN.
Cross-Reference
| Manufacturer | Reference |
|---|---|
| SKF | NU 208 ECP |
| Timken | NU208 |
| FAG (Schaeffler) | NU208-E-XL |
Cross-references are matched on the ISO 15 boundary dimensions
(40 x 80 x 18 mm) and bearing type, which is what makes parts interchangeable. The
suffixes (e.g. -2RS, -2Z, -E1) encode seals, shields, and internal design
variants, not the envelope size.
Boundary Dimensions
| Dimension | Value |
|---|---|
| Bore (d) | 40 mm |
| Outside diameter (D) | 80 mm |
| Width (B/T) | 18 mm |
Load Ratings
| Rating | Value |
|---|---|
| Basic dynamic load rating (C) | 56 kN |
| Basic static load rating (C0) | 53 kN |
Type & Application Notes
Cylindrical Roller bearings are high radial capacity with line contact and no axial location (NU) or one-direction location (NJ). The NU 208 ECP is commonly found in electric motors, gearboxes, and rolling mills with heavy radial loads. Dynamic rating 56 kN sets the load a bearing can carry for a one-million-revolution rating life (L10), while the static rating 53 kN governs the maximum load a stationary bearing can withstand without permanent deformation.
Interchange Notes
When substituting the NU 208 ECP:
- Match the boundary dimensions (40 x 80 x 18 mm) exactly — this is what guarantees fit.
- Match the bearing type (Cylindrical Roller); mixing roller and ball types changes stiffness, speed limits, and load capacity.
- Match or exceed the dynamic load rating (56 kN) for the intended life.
- Respect the seal/shield suffix the application requires (open, Z, 2Z, RS, or 2RS).
Frequently Asked Questions
What Timken bearing crosses to SKF NU 208 ECP?
The Timken equivalent is NU208.
What FAG bearing crosses to SKF NU 208 ECP?
The FAG (Schaeffler) equivalent is NU208-E-XL.
What are the dimensions of the NU 208 ECP bearing?
40 x 80 x 18 mm (bore x OD x width).
What is the load rating of the NU 208 ECP bearing?
Dynamic 56 kN, static 53 kN.
What type of bearing is the NU 208 ECP?
It is a Cylindrical Roller bearing.