Aerospace application Industrial machinery SKF 2318 Self-aligning ball bearings

Self-aligning ball bearing features

Self-aligning ball bearings have two rows of balls, a common sphered raceway in the outer ring and two deep uninterrupted raceway grooves in the inner ring.  

They are insensitive to angular misalignment of the shaft relative to the housing, which can be caused, for example, by shaft deflection.

It commodates static and dynamic misalignment, haa excellent high-speed performance, excellent light load performance and low friction.

Installation Methods and Usage Precautions for Self-aligning Ball Bearing                               

The installation of self-aligning ball bearings is a crucial process that can significantly impact the performance and longevity of the bearing. 

Here is a detailed guide on the installation method and usage precautions for self-aligning ball bearings: 

Installation Method: 

Cleanliness is key: Before installation, ensure that the mounting surfaces are clean and free of any dirt, dust, 

or debris that could affect the bearing's performance. 

Proper handling: Handle the bearing with care to prevent any damage to the components. Avoid dropping or hitting the bearing during installation. 

Correct mounting: Ensure that the bearing is mounted in the correct orientation and position as per the manufacturer's instructions. 

Improper mounting can lead to misalignment and premature bearing failure. 

Use appropriate tools: Utilize the correct tools and equipment for mounting the bearing to prevent any damage to the bearing or surrounding components. 

Lubrication: Proper lubrication is essential for the smooth operation of the bearing. 

Make sure to lubricate the bearing as per the manufacturer's recommendations. 

Usage Precautions: 

Misalignment: Self-aligning ball bearings are designed to accommodate misalignment to a certain extent. 

However, excessive misalignment can lead to increased wear and reduced bearing life. 

Temperature: Monitor the operating temperature of the bearing to ensure it remains within the recommended range. 

High temperatures can accelerate wear and cause premature failure. 

Overloading: Avoid overloading the bearing beyond its rated capacity as it can lead to increased stress and potential failure. 

Contamination: Protect the bearing from contamination by sealing it properly and keeping the surrounding area clean. 

Regular maintenance: Perform regular inspections and maintenance checks to detect any issues early and prevent unexpected failures. 

In summary, the correct installation of self-aligning ball bearings, along with following usage precautions, 

is essential for ensuring optimal performance and longevity of the bearing. 

By adhering to these guidelines, you can maximize the efficiency and reliability of your machinery.

Introduction and Knowledge of Self-aligning Ball Bearing                                                           

SKF 2318 Self-aligning Ball Bearings

• Design and Features

  SKF 2318 self-aligning ball bearings are designed with two rows of balls, a common sphered raceway in the outer ring,

  and two deep uninterrupted raceway grooves in the inner ring.

  This design allows the bearing to self-align, accommodating angular misalignment of the shaft relative to the housing,

  which can be caused by factors such as shaft deflection.

• Load Capacity

  These bearings are primarily designed to handle radial loads and can also manage light axial loads, but they are not suitable for pure axial loads.

• Internal Clearance

  Bearings with the "E" suffix have higher load ratings than the original standard design due to improvements in internal construction.

  They come with a glass fiber reinforced, 6.6 polyamide cage as standard, while machined brass or pressed steel cages are supplied on other sizes.

  Applications

  SKF 2318 bearings are suitable for applications where misalignment can arise from errors in mounting or from shaft deflection.

  They are also known for their high-speed performance and low friction, which enables them to run cooler and last longer.

• Performance

  Self-aligning ball bearings generate less friction than any other type of rolling bearing, which allows them to operate more efficiently at high speeds. They also have low minimum load requirements and can reduce noise and vibration levels, making them ideal for applications such as fans.

• Mounting

  Bearings with a tapered bore can be mounted using adapter sleeves or withdrawal sleeves.

  Proper mounting ensures a sufficiently tight fit and the correct residual clearance.

• Technical Specifications

  Detailed dimensions, load ratings, and speed limits can be found in the specific product tables provided by SKF,

  which include information on bearing dimensions, abutment and seat dimensions, and mass.

The SKF 2318 self-aligning ball bearings offer a robust solution for machinery that demands precision and reliability in the face of challenging conditions,

providing a reliable support for your rotating equipment.

For further details on this product please directly contact our sales department under shh@dmsw.com

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