SKF 21310 E/C3 Bearing Technical Data Sheet

The SKF 21310 E/C3 bearing is a spherical roller bearing designed to support radial loads and light axial loads. This type of bearing is particularly suitable for industrial applications where it is necessary to resist combined vibrations and loads. Its construction and characteristics make it ideal for machines and systems operating in difficult conditions, such as those in the metallurgical, mining and heavy machinery manufacturing sectors.

Technical characteristics of the SKF 21310 E/C3 bearing

1. Bearing type : Spherical roller, a type of bearing that allows the absorption of radial and axial loads in both directions.

2. Dimensions:

   • Internal diameter (d) : 50 mm
   • External diameter (D) : 110 mm
   • Width (B) : 27 mm
   • Weight : 0.64 kg

3. Basic dynamic load (C) : 90 kN

   • This value represents the maximum load that the bearing can withstand during its life cycle (under ideal conditions, i.e. at a constant speed).

4. Basic static load (C0) : 56 kN

   • This value indicates the maximum load that the bearing can withstand without being damaged, when stationary or in very slow motion conditions.

5. Internal clearance (C3) : The bearing has a larger internal clearance (C3), which allows compensation for thermal expansion or other effects during operation. This clearance helps ensure that the bearing functions properly even under high load or high temperature conditions.

6. Maximum rotation speed : Up to 2800 rpm (depending on load, lubrication and application conditions). This is an indicative value that may vary depending on the operating environment.

7. Cage material : Steel cage or polymer material (depending on the specific application). The cages are designed to reduce friction and ensure quiet, vibration-free operation.

8. Lubrication : The SKF 21310 E/C3 bearing is generally supplied without lubrication, therefore it is necessary to add the appropriate lubricant (oil or grease) according to the application specifications.

9. Seals : Without seals (open). This open design is particularly useful for applications where continuous lubrication is required and protection against the ingress of dust or foreign bodies is not a priority.

10. Materials:

    • Chrome steel (AISI 52100) for the rollers and balls, which gives resistance and durability over time.
    • Steel for the cage : Solid material, designed to withstand high mechanical loads and resist wear.

11. Operating temperature : The bearing is designed to operate in a temperature range between -30°C and +120°C , although in special situations it can be resistant to higher temperatures, with the aid of correct lubrication.

Description of the Manufacturer – SKF

SKF is one of the world's leading manufacturers of bearings, lubrication solutions and mechanical motion technologies. Founded in 1907 in Sweden, SKF has a long history of innovation and quality in bearing technology. With a global presence and industrial footprint in major automotive, aerospace, rail, energy and mining industries, SKF stands out for the reliability, durability and performance of its products.

SKF's mission is to improve the performance of its customers by reducing the risk of mechanical failure and optimizing operational efficiency through innovation. Today, SKF offers a wide range of bearings for every type of application, ensuring precision, durability and high-level performance.

For more information on the SKF 21310 E/C3 bearing , you can visit the company's official website: SKF official website

Sectors of Use of the SKF 21310 E/C3 Bearing

The SKF 21310 E/C3 bearing is ideal for a wide range of industrial applications, including:

• Metallurgical sector : Used in steel plants, crushers, presses and other heavy machines.
• Mining : Suitable for machines operating in harsh environments, such as crushers, excavators and mining plants.
• Energy sector : Used in turbines, generators and energy production plants.
• Industrial automation : Used in automated manufacturing machinery and machine tools.
• Trade and Transportation : In automotive, rail and other high-speed applications.

Assembly of the SKF 21310 E/C3 Bearing

The SKF 21310 E/C3 bearing must be mounted carefully to avoid damage and ensure correct operation. Here are the main steps:

1. Preparation of the housing and shaft : Thoroughly clean the housing and shaft of dust, rust or other contaminants. The housing must be free from defects and must have the correct tolerances.

2. Lubrication : Apply the lubricant necessary for the functioning of the bearing (oil or grease). The type of lubricant depends on the specifics of the application.

3. Bearing placement : Place the bearing into the housing carefully, without forcing the components. Installation must be done so that the bearing fits properly.

4. Internal clearance check : Check that the bearing has the correct internal clearance, especially if using a C3 type, to avoid problems due to thermal expansion.

5. Check functionality : Once mounted, check the correct functioning of the bearing by rotating the shaft manually to ensure there are no vibrations, strange sounds or excessive resistance.

Advantages of purchasing an SKF 21310 E/C3 bearing ready for delivery in stock

1. Immediate availability : Buying an SKF bearing in stock allows you to avoid waiting times for the order, reducing machine downtime and guaranteeing rapid replacement in the event of failures.

2. Reduction of maintenance costs : Having a bearing available helps reduce machine downtime costs, improving productivity and reducing economic losses.

3. Reliability and durability : SKF is a trusted brand that produces high-performance bearings, reducing the risk of breakage and sudden failure.

4. Safety : A quality SKF bearing ensures that the application operates safely, avoiding risks related to malfunctions or sudden failures.

5. Competitive prices : Purchasing in stock can bring economic advantages, especially for orders in large quantities, allowing a better quality-price ratio.

Bearing Sizing Formula

The sizing of a bearing such as the SKF 21310 E/C3 depends on the applied loads and rotation speeds. The basic formula for calculating bearing life (in millions of revolutions) is:

$$L$$

Where:

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

To determine the correct sizing, it is also important to know the type of application, rotation speed, operating conditions and temperature. Choosing the correct lubrication and housing is crucial to keeping the bearing in tip-top condition.

FOR SALE BEARINGS IN STOCK SKF 21310 E/C3 NEW STILL IN BOX