SKF NU 328 ECM/C3 Bearing Technical Data Sheet

The SKF NU 328 ECM/C3 bearing is a radial cylindrical roller bearing, featuring a cylindrical bore configuration and designed to withstand high loads and harsh operating conditions. This type of bearing is particularly suitable for applications where long operating life, stability and reliability are required. SKF company 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 : Radial cylindrical roller bearing, without seal ring (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 distribution of the rollers and for a longer life
7. Internal clearance : C3 – Internal clearance greater than normal, suitable to support 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, the temperature may increase depending on the type of lubricant used)

Description of the Manufacturer – 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 manufacturing of bearings, seals, lubrication systems and high-performance mechanical products. Thanks to its experience, SKF has developed a wide range of bearings for various industrial applications, always with a focus on quality, reliability and sustainability.

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

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

Sectors of Use:

SKF NU 328 ECM/C3 bearing is used in numerous industrial sectors, thanks to its characteristics of robustness, load resistance and long operating life. Among the most common sectors of use we find:

• Machine tools : Due to its ability to support high loads and precision, it is ideal for lathes, milling machines and other industrial machines.
• Heavy industry : In handling systems and equipment operating in harsh conditions.
• Energy sector : Used in power generation plants and turbines, where reliability and durability are crucial.
• Automotive and railway sector : It is suitable for use in transmissions, engines and drive wheels, where bearings resistant to high loads and vibrations are required.
• General Industrial : 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 guarantee stable performance over time:

• High-quality steel : For long life and superior resistance to wear and fatigue.
• Steel cage : This cage allows uniform distribution of the rollers, reducing the risk of damage and improving the life of the bearing.
• C3 Internal Clearance : Suitable to support thermal expansions and heavy loads, allowing greater flexibility when used in dynamic high temperature conditions.
• Load Capacity : Due to its cylindrical roller configuration, the bearing is capable of withstanding heavy radial loads and, in some applications, even moderate axial loads.

Assembly and Installation of the SKF NU 328 ECM/C3 Bearing:

1. Preparing the Case : Make sure the case is clean, free of dust and debris. Mounting surfaces must be smooth and free of rust or damage.
2. Lubrication : It is necessary to properly lubricate the bearing before installation. Lubrication can be done with grease or oil, depending on the application and operating conditions.
3. Bearing Placement : Use a press or suitable mounting tool to avoid damage to the bearing during installation. It is important to avoid direct hits or excessive forces on the bearing, as they could compromise its integrity.
4. Verification of assembly : After installation, it is important to verify that the bearing has been assembled correctly and that it operates without vibrations or abnormal noises.

Bearing Sizing Formulas:

SKF NU 328 ECM/C3 bearing depends on various factors, including the type of load applied, the rotation 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% life under rated 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 purchasing a stock bearing:

Purchasing a stock SKF NU 328 ECM/C3 bearing

1. Immediate availability : Avoid machine downtime due to lack of spare parts.
2. Competitive prices : By purchasing a bearing ready for immediate delivery, you can often obtain more favorable conditions than purchasing made to order.
3. Operational flexibility : Purchasing from 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 €1500 - €1800 , but may vary depending on the supplier and market conditions. It is advisable to check the price directly with authorized resellers or distributors.

Conclusions:

The SKF NU 328 ECM/C3 bearing is an ideal choice for applications requiring high performance, load resistance and durability. Designed for demanding industrial sectors, it is perfect for ensuring stable operation even in difficult operating conditions. Purchasing from stock helps reduce downtime and save overall costs, while ensuring high quality and long component life.

For further technical details, you can consult the official SKF :

SKF Official Website