Infographic-Types of Ball Bearings

Because ball bearings play an important role in countless machines by providing smooth and efficient support for rotating shafts, it is important to choose the right type of ball bearing for your application. Understanding the different types, characteristics, and applications of ball bearings can help you as a reference before purchasing.

1.Based Design and Construction

Ball bearings of different designs are suitable for different application scenarios. Each type has its own unique performance. Depending on the structural design, you usually have the following options:

Deep groove ball bearing:

• Features: This is the most common type of ball bearing, with deep inner and outer rings, especially suitable for radial loads.
• Application: Suitable for low-friction equipment such as automobiles, electric motors, household appliances, etc.

Angular contact ball bearing:

• Features: This bearing is designed to withstand radial and axial loads. The relative angle design of the inner and outer rings enables it to withstand high axial loads.
• Application: Suitable for equipment that requires high precision and high speed.

Self-aligning ball bearing:

• Features: Designed for shaft misalignment, allowing the inner ring to be slightly tilted to compensate for shaft misalignment.
• Application: Suitable for equipment such as long-axis transmissions and wind turbines where shaft misalignment may occur.

Thrust ball bearing:

• Features: Designed to withstand axial loads, usually consisting of washers with grooves and balls.
• Application: Suitable for equipment that needs to withstand large axial forces.

Single row ball bearing:

• Features: There is only one row of balls between the inner and outer rings, suitable for limited space applications, low load capacity.
• Application: Suitable for small motors and household appliances with limited space.

Double row ball bearing:

• Features: There are two rows of balls between the inner and outer rings, high load capacity.
• Application: Suitable for equipment that needs to support larger loads.

2.Based Load Capacity and Direction

Ball bearings can also be classified according to the load direction and load capacity they bear:

Radial ball bearings:

• Features: Designed primarily for radial loads, capable of supporting forces acting from both sides of the axis.
• Applications: For equipment that primarily bears radial loads, this type of bearing is your ideal choice.

Axial ball bearings:

• Features: Designed to support axial loads, specifically for forces parallel to the axis.
• Applications: In applications where axial forces need to be supported, this type of bearing can meet your needs.

Combined load ball bearings:

• Features: Capable of supporting axial and radial loads, more complex design, and relatively high price.
• Applications: If your equipment needs to support loads in multiple directions at the same time, this bearing will be your best choice.

3.Based material

Most ball bearings are made of high-carbon chromium steel, but other materials are also used for cost and durability considerations. You can choose the right ball bearing based on the requirements of different application scenarios.

Steel ball bearings:

• Features: Low price and durability, suitable for a variety of applications, the most common is made of high-carbon chromium steel.
• Applications: Steel bearings have high strength and wear resistance and are suitable for most standard applications.

Ceramic ball bearings:

• Features: They are more expensive, but they have high resistance to high temperature, corrosion and insulation, and have a long service life.
• Application: Ceramic bearings perform well in high temperature and corrosion-resistant environments, and also have excellent electrical insulation properties. It is your ideal choice.

Plastic ball bearings:

• Features: Lightweight, low friction coefficient, not suitable for high-load applications.
• Application: In light-load and medium-load applications, especially in corrosion-resistant environments, plastic bearings provide you with excellent performance.

4.Based Sealing/Shielding

We usually classify ball bearings from the dimension of protecting bearings from contaminants. You can take a look at which type of ball bearing is more suitable for your application scenario.

Open ball bearings:

• Features: No seals or shields, completely open.
• Application: Not suitable for dusty environments, due to the lack of any seals, resulting in low friction resistance, suitable for applications that require low friction and clean environments.

Shielded ball bearings:

• Features: There is a metal shield on one or both sides to prevent dust and prevent large particles from entering.
• Application: Suitable for dusty environments. And because it effectively prevents the entry of contaminants, it extends the service life of the bearing.

Sealed ball bearings:

• Features: There are rubber or plastic seals on one or both sides to prevent large and small particles from entering.
• Application: Provides higher protection and ensures long-term stable operation in harsh environments.

5.Based Application

In different application scenarios, we need to use different ball bearings. According to the needs of some specific application scenarios, we can divide ball bearings into the following types. Before purchasing, you can seek help from our professional team to give you the right advice.

Miniature ball bearings:

• Features: The inner diameter is less than 10mm, with high precision and smooth operation.
• Application: Suitable for precision instruments and small equipment, mostly used in medical equipment.

Heavy-duty ball bearings:

• Features: Designed to withstand heavy loads, mostly used in heavy machinery and industry.
• Application: Mostly used in heavy machinery and industrial equipment, can support large loads, and ensure long-term stable operation of equipment in high-stress environments.

High-speed ball bearings:

• Features: Designed for applications that require high-speed operation, with low friction, high precision and high stability.
• Application: Suitable for high-speed rotating equipment, can maintain stability and efficiency at high speeds, and extend the service life of the equipment.

How to choose the right ball bearing?

Choosing the right ball bearing needs to take into account your specific application. Before that, you also need to consider the following factors:

• Load type and direction
• Load capacity
• Speed
• Accuracy
• Environmental conditions
• Size restrictions
• Cost

I hope this information can help you better understand the type of ball bearings required for different application scenarios so that you can make an informed decision when choosing. If you are not sure which type of ball bearing is suitable for your application, please feel free to contact our professional team. We will provide you with the best solution to ensure that your equipment runs efficiently.