SKF NU 328 ECM/C3 Bearing Technical Data Sheet

The SKF NU 328 ECM/C3 bearing is a radial cylindrical roller bearing with a cylindrical bore configuration and designed to withstand high loads and harsh operating conditions. This bearing type is particularly suitable for applications where long service life, stability, and reliability are required. SKF , a well-known Swedish company and leader in the production of bearings and motion solutions, is the manufacturer of this high-quality product.

Main technical characteristics of the SKF NU 328 ECM/C3 bearing:

1. Bearing type : Cylindrical roller bearing, without seal (open)
2. Internal diameter (d) : 140 mm
3. External diameter (D) : 300 mm
4. Width (B) : 62 mm
5. Weight : 11.7 kg
6. Cage type : Steel cage, for good roller distribution and longer life
7. Internal clearance : C3 – Larger than normal internal clearance, suitable for supporting high temperatures or thermal expansion during operation
8. Maximum rated speed : Approximately 1,800 rpm at moderate load, but actual speed depends on lubrication and load conditions
9. Dynamic load : 174 kN (up to 174,000 N maximum radial load)
10. Static load : 130 kN (up to 130,000 N maximum static load)
11. Operating temperature : -20°C to +120°C (without special lubrication, temperature may increase depending on the type of lubricant used)

Manufacturer Description – SKF

SKF is a world-renowned brand in bearings and motion solutions. Founded in 1907 in Sweden, it is one of the oldest and most respected companies internationally. SKF is a leader in the design and manufacture of high-performance bearings, seals, lubrication systems, and mechanical products. Drawing on its experience, SKF has developed a wide range of bearings for a variety of industrial applications, always with a focus on quality, reliability, and sustainability.

SKF product range covers applications in diverse sectors such as automotive, energy, aerospace, railways, chemicals, and many other industries requiring high performance and durability. SKF stands out for its product quality, continuous innovation, and impeccable customer service.

For more details, you can visit the SKF :
SKF Official Website

Sectors of Use:

The SKF NU 328 ECM/C3 is used in numerous industrial sectors, thanks to its robustness, load-bearing capacity, and long service life. Common areas of use include:

• Machine Tools : Due to its high load capacity and precision, it is ideal for lathes, milling machines and other industrial machines.
• Heavy industry : In handling plants and equipment operating under harsh conditions.
• Energy Sector : Used in power generation plants and turbines, where reliability and durability are crucial.
• Automotive and railway industry : It is suitable for use in transmissions, engines and drive wheels, where bearings resistant to high loads and vibrations are required.
• General Industrial Sector : Used in electric motors, pumps, compressors, and other general applications requiring good load capacity and long life.

Materials and Mechanical Characteristics:

The SKF NU 328 ECM/C3 is made of high-quality materials, designed to withstand difficult operating conditions and to ensure stable performance over time:

• High quality steel : For long life and superior resistance to wear and fatigue.
• Steel cage : This cage allows for even distribution of the rollers, reducing the risk of damage and improving bearing life.
• C3 Internal Clearance : Suitable for thermal expansion and heavy loads, allows for greater flexibility during use in dynamic, high-temperature conditions.
• Load capacity : Due to its cylindrical roller configuration, the bearing is able to accommodate heavy radial loads and, in some applications, even moderate axial loads.

Mounting and Installation of SKF NU 328 ECM/C3 Bearing:

1. Enclosure Preparation : Ensure the enclosure is clean and free of dust and debris. Mounting surfaces must be smooth and free of rust or damage.
2. Lubrication : The bearing must be properly lubricated before installation. Lubrication can be done with grease or oil, depending on the application and operating conditions.
3. Bearing installation : Use a press or suitable mounting tool to avoid damaging the bearing during installation. It is important to avoid direct impacts or excessive force on the bearing, as this may compromise its integrity.
4. Checking the assembly : After installation, it is important to check that the bearing has been assembled correctly and that it operates without abnormal vibrations or noises.

Bearing Sizing Formulas:

The sizing of the SKF NU 328 ECM/C3 depends on several factors, including the type of load applied, the rotational speed, and the operating temperature. One of the basic formulas for calculating bearing life is the L10 life formula, which requires the bearing to achieve at least 90% of its life under nominal load conditions:

$$L$$

Where:

• L10 is the bearing life in millions of revolutions,
• C is the basic dynamic load of the bearing (expressed in N),
• F is the load applied to the bearing.

Advantages of buying a bearing in stock:

Buying an SKF NU 328 ECM/C3 bearing from stock offers several advantages:

1. Immediate availability : Avoid machine downtime due to lack of spare parts.
2. Competitive prices : By purchasing a bearing in stock, you can often obtain more favorable conditions than purchasing on order.
3. Operational flexibility : Purchasing in stock allows you to have the component available when needed, without having to worry about waiting times or possible delays.

Average Price:

The average price SKF NU 328 ECM/C3 bearing is around €1,500–€1,800 , but may vary depending on the supplier and market conditions. It is advisable to check the price directly with authorized dealers or distributors.

Conclusions:

The SKF NU 328 ECM/C3 bearing is an ideal choice for applications requiring high performance, load-bearing capacity, and durability. Designed for demanding industries, it is ideal for ensuring stable operation even under harsh operating conditions. Buying from stock reduces downtime and saves overall costs, while ensuring high quality and a long component life.

For further technical details, please visit the official SKF :

SKF Official Website