Double Row Ball Bearing ID 25mm: A Comprehensive Guide

If you’re in the market for a double row ball bearing with an inner diameter of 25mm, you’re in luck. With a wide range of styles and sizes to choose from, you’re sure to find the perfect bearing for your needs. Double row ball bearings are ideal for applications that require both radial and axial loads to be supported, making them a popular choice in the automotive, aerospace, and industrial sectors.

One of the benefits of using a double row ball bearing is that it provides greater load capacity than a single row bearing. This is because the second row of balls distributes the load across a larger surface area, reducing stress and wear on the bearing. Additionally, double row ball bearings can handle misalignment better than single row bearings, making them more suitable for applications where shaft deflection or misalignment is a concern.

When selecting a double row ball bearing with an inner diameter of 25mm, it’s important to consider factors such as the type of load, speed, and operating temperature. With the right bearing, you can ensure optimal performance and reliability in your application.

Basic Specifications

If you are looking for a double row ball bearing with an inner diameter measurement of 25mm, there are a few important specifications to keep in mind. This section will cover the key details you need to know before making a purchase.

Inner Diameter Measurement

The first and most obvious specification to consider is the inner diameter measurement of the bearing. For a bearing with an inner diameter of 25mm, you will need to ensure that the shaft you are mounting it on is also 25mm in diameter. This will ensure a proper fit and prevent any slippage or misalignment.

Bearing Material

The material used to construct the bearing is also an important consideration. Double row ball bearings are typically made from steel or ceramic, with steel being the more common choice. Steel bearings are strong, durable, and able to withstand high temperatures and heavy loads. Ceramic bearings, on the other hand, are lighter and more corrosion-resistant, making them a good choice for certain applications.

Load Rating

Finally, you will want to consider the load rating of the bearing. This refers to the maximum weight or force that the bearing can support without failing. For a 25mm double row ball bearing, you can expect a load rating of around 4,500 newtons (N) for radial loads and 2,900 N for axial loads. However, it’s important to note that load ratings can vary depending on factors such as bearing material, lubrication, and operating conditions.

By keeping these specifications in mind, you can ensure that you choose the right double row ball bearing for your application.

Design and Features

Double row ball bearings with an inner diameter of 25mm are a popular choice for various industrial applications. These bearings have a unique design and features that make them suitable for use in demanding environments. In this section, we will discuss the design and features of double row ball bearings with an inner diameter of 25mm.

Sealing Options

Double row ball bearings with an inner diameter of 25mm come with different sealing options. The most common sealing options include open, ZZ, and 2RS. Open bearings do not have any seals and are suitable for applications where lubrication is easy to access. ZZ bearings have metal shields on both sides and provide protection against dust and other contaminants. 2RS bearings have rubber seals on both sides and provide better protection against dust and water.

Row Configuration

Double row ball bearings with an inner diameter of 25mm have two rows of balls that run in separate grooves. This configuration allows these bearings to handle radial and axial loads in both directions. Additionally, the double row configuration provides better load distribution and reduces the risk of ball skidding.

Cage Design

Double row ball bearings with an inner diameter of 25mm have different cage designs. The most common cage designs include steel and brass. Steel cages are suitable for high-speed applications and provide better resistance to shock loads. Brass cages are suitable for applications that require high temperatures and provide better resistance to corrosion.

In summary, double row ball bearings with an inner diameter of 25mm are versatile and reliable components that are suitable for various industrial applications. These bearings have different sealing options, row configurations, and cage designs that make them suitable for use in different environments. When selecting double row ball bearings with an inner diameter of 25mm, it is important to consider the specific requirements of your application to ensure that you choose the right bearing for your needs.

Installation Guidelines

When installing a double row ball bearing with a 25mm inner diameter, there are several important factors to consider to ensure proper installation and optimal performance. This section will cover the mounting procedures, alignment tolerances, and lubrication requirements for double row ball bearings.

Mounting Procedures

Before mounting the bearing, ensure that the shaft and housing are clean and free of any burrs or nicks. The bearing should be mounted using the appropriate mounting tools to avoid damage to the bearing. It is recommended to use a mounting sleeve to apply even pressure to the bearing during installation.

When mounting the bearing, ensure that it is properly aligned with the shaft and housing. Misalignment can cause premature wear and damage to the bearing. It is recommended to use a dial indicator to check the alignment of the bearing.

Alignment Tolerances

Proper alignment is critical to the performance and longevity of double row ball bearings. The alignment tolerances for double row ball bearings with a 25mm inner diameter are as follows:

• Radial runout: 0.025mm
• Axial runout: 0.025mm
• Angular misalignment: 0.5°

If the alignment is outside of these tolerances, it is recommended to adjust the mounting position of the bearing or use shims to achieve the proper alignment.

Lubrication Requirements

Proper lubrication is essential to the performance and longevity of double row ball bearings. The type and amount of lubricant used will depend on the application and operating conditions. It is recommended to use a high-quality grease with a NLGI grade of 2 or 3.

When applying the lubricant, ensure that it is evenly distributed throughout the bearing. Over-lubrication can cause excessive heat and premature wear, while under-lubrication can cause increased friction and premature failure.

By following these installation guidelines, you can ensure that your double row ball bearing with a 25mm inner diameter is installed properly and operates at peak performance.

Applications

Double row ball bearings with an inner diameter of 25mm are versatile components that are used in a wide range of industrial applications. These bearings are commonly used in machinery and equipment that require high load capacity and durability. Here are some of the most common applications of double row ball bearings with an ID of 25mm:

Industrial Machinery

Double row ball bearings with an ID of 25mm are widely used in industrial machinery, including conveyor systems, printing presses, and packaging equipment. These bearings can handle heavy loads and provide high rotational speeds, making them ideal for use in equipment that requires high precision and reliability. They are also used in machine tools, such as lathes and milling machines, where they provide smooth and accurate motion.

Automotive Industry

Double row ball bearings with an ID of 25mm are used in various components of automobiles, including wheels, transmissions, and engines. These bearings provide high load capacity and durability, making them ideal for use in the harsh conditions of the automotive industry. They are also used in steering systems and suspension systems, where they provide smooth and reliable motion.

Aerospace Sector

Double row ball bearings with an ID of 25mm are used in various components of aerospace equipment, including aircraft engines and landing gear. These bearings provide high load capacity and are designed to withstand the extreme conditions of the aerospace sector, including high temperatures and vibrations. They are also used in satellite equipment and other space applications, where they provide reliable and precise motion.

Overall, double row ball bearings with an ID of 25mm are essential components in a wide range of industrial applications. Whether you are working in the industrial machinery, automotive, or aerospace sector, these bearings provide the durability and reliability you need to get the job done.