NU 212 ECP bearing
60 × 110 mm · dynamic rating 108 kN · static rating 102 kN. Dimensions, load ratings, designation meaning, life estimates and equivalent parts.
NU 212 ECP specification
| Designation | NU 212 ECP |
| Type | Cylindrical roller bearing |
| Series | NU2 light |
| Bore diameter d | 60 mm |
| Outside diameter D | 110 mm |
| Basic dynamic load rating C | 108 kN (108,000 N) |
| Basic static load rating C0 | 102 kN (102,000 N) |
| Ratio C0/C | 0.94 |
| Speed guide, grease lubrication | 7,500 rpm |
| Life exponent p | 10/3 (roller bearing) |
Values come from the Rotec AI bearing catalogue and are indicative. Confirm against the manufacturer's current catalogue before ordering. Not every dimension (such as width) is listed here.
What the designation NU 212 ECP means
| Code | Meaning |
|---|---|
| NU | No flange on the inner ring, two flanges on the outer ring — inner ring can float axially |
| 212 | light dimension series — bore code "12" = 12 × 5 = 60 mm |
| EC | Optimized internal design with more and/or larger rollers |
| P | Glass-fibre-reinforced PA66 cage, roller-centred |
Basic rating life of the NU 212 ECP
Basic rating life is L10 = (C / P)p million revolutions, where P is the equivalent dynamic load and p = 10/3 (roller bearing). For a NU 212 ECP with C = 108 kN, the table shows what that gives at different load levels. It is the ISO 281 basic life only: it does not include lubrication, contamination, misalignment or reliability modifiers.
| C / P | P as share of C | L10 (million rev) | L10 at 1,500 rpm | L10 at 3,000 rpm |
|---|---|---|---|---|
| 3 | 33.3% | 39 | 430 | 220 |
| 5 | 20.0% | 214 | 2,400 | 1,200 |
| 8 | 12.5% | 1,024 | 11,400 | 5,700 |
| 12 | 8.3% | 3,956 | 44,000 | 22,000 |
For example, a C / P of 5 means the equivalent load is 21.6 kN on this bearing. Use the Load Calculator to work out P for your actual radial and axial loads.
Equivalents of the NU 212 ECP from other brands
These parts share the main boundary dimensions of the NU 212 ECP and are commonly used as its equivalent. Published load ratings differ a little between makers because internal designs differ.
| Brand | Part | C (kN) | C0 (kN) | Dynamic rating vs SKF |
|---|---|---|---|---|
| SKF | NU 212 ECP | 108 | 102 | Reference |
| FAG | NU212-E-XL-TVP2-C3 | 112 | 103 | 104% of SKF |
| FAG | NU212-E-XL-TVP2-C3 | — | — | — |
Check clearance class, cage, seals and any special suffix before ordering. A matching main size does not guarantee the parts are interchangeable in every detail.
Where the NU 212 ECP is used
Cylindrical roller bearings are chosen for: High radial load and high speed; separable arrangements. Typical equipment: Gearboxes, traction motors, rolling mills, generators. Some variants carry axial load; common in railway drive systems.
Other sizes in the same series
The NU 212 ECP belongs to the “NU2 light” series. The next size down, the NU 211 ECP, has a bore of 55 mm and a dynamic rating of 96.5 kN. The next size up, the NU 213 ECP, has a bore of 65 mm and a rating of 122 kN (+13%).
Common problems on bearings like the NU 212 ECP
Most field failures trace back to lubrication, contamination, fits and alignment rather than the bearing itself. These guides explain how to recognise and prevent them:
Questions about the NU 212 ECP
What are the dimensions of a NU 212 ECP bearing?
The NU 212 ECP has a bore of 60 mm and an outside diameter of 110 mm. It is a cylindrical roller bearing. Series: NU2 light.
What is the load rating of a NU 212 ECP bearing?
In the Rotec AI catalogue the NU 212 ECP has a basic dynamic load rating C of 108 kN and a basic static load rating C0 of 102 kN. Always confirm against the manufacturer's current catalogue.
What is the equivalent of a NU 212 ECP bearing?
Equivalent parts include FAG NU212-E-XL-TVP2-C3; FAG NU212-E-XL-TVP2-C3. Check clearance, cage and seal suffixes before substituting.