The NU312ECP is a specific type of cylindrical roller bearing. Here’s a breakdown of its designation and key features:
1. NU312ECP Designation Breakdown:
- NU: Indicates the bearing type. “NU” means it is a cylindrical roller bearing with two flanges on the outer ring and no flanges on the inner ring. This design allows the inner ring to move axially relative to the outer ring, making it suitable for applications with axial displacement.
- 312: Refers to the bearing size. The “3” indicates a medium series, and “12” corresponds to a bore diameter of 60 Mm (calculated as 12 x 5 = 60 Mm).
- EC: Stands for “Optimized Internal Design.” This means the bearing has an enhanced internal geometry, including modified roller and raceway profiles, to improve load distribution and reduce stress.
- P: Indicates the bearing’s cage material. “P” stands for a glass fiber-reinforced polyamide (nylon) cage, which is lightweight, reduces friction, and is suitable for high-speed applications.
2. Key Features:
- Type: Cylindrical roller bearing (NU design).
- Bore Diameter: 60 Mm.
- Outer Diameter: 130 Mm.
- Amplada: 31 Mm.
- Cage Material: Glass fiber-reinforced polyamide (nylon).
- Load Capacity: High radial load capacity, but not designed for axial loads.
- Applications: Suitable for applications with high radial loads and where axial displacement of the shaft relative to the housing is required, such as in gearboxes, electric motors, and industrial machinery.
3. Advantages:
- High radial load capacity.
- Accommodates axial displacement.
- Optimized internal design for better performance.
- Lightweight cage for reduced friction and high-speed operation.
4. Typical Applications:
- Gearboxes.
- Electric motors.
- Pumps.
- Industrial machinery.
- Conveyor systems.
If you need further details, such as dynamic/static load ratings or specific operating conditions, consult the manufacturer’s datasheet or technical documentation.









