The NJ222ECP is a type of cylindrical roller bearing, commonly used in various industrial applications. Here’s a breakdown of its key features and specifications:
1. Bearing Type:
- NJ: This indicates the bearing type.
- NJ stands for a cylindrical roller bearing with a single flange on the outer ring and a double flange on the inner ring. This design allows for axial displacement in one direction and can handle radial loads.
2. มิติ:
- 222: This refers to the bearing’s size designation.
- Bore Diameter (d): 110 มิลลิเมตร
- Outer Diameter (D): 200 มิลลิเมตร
- ความกว้าง (B): 38 มิลลิเมตร
3. ECP Designation:
- EC: Stands for “Enhanced Capacity.” This means the bearing has an optimized internal design (e.g., modified roller and raceway profiles) to increase radial load capacity and reduce stress.
- P: Indicates the use of glass fiber reinforced polyamide (PA66) as the material for the cage (also known as the retainer). This material is lightweight, durable, and suitable for high-speed applications.
4. Load Capacity:
- Cylindrical roller bearings like the NJ222ECP are designed to handle high radial loads. The “EC” design further enhances this capability.
- Axial load capacity is limited due to the single flange design, but it can handle some axial loads in one direction.
5. Applications:
- Commonly used in heavy machinery, gearboxes, electric motors, pumps, and other industrial equipment where high radial load capacity and moderate axial load handling are required.
6. Lubrication:
- Proper lubrication is essential for optimal performance. Grease or oil lubrication can be used depending on the operating conditions.
7. Operating Conditions:
- Suitable for high-speed applications due to the polyamide cage.
- Can operate in a wide range of temperatures, but the cage material (PA66) has a temperature limit of around 120°C (248°F).
If you need further details, such as dynamic/static load ratings or specific installation instructions, consult the manufacturer’s datasheet or technical documentation.
