6919 bearing

Deep groove ball bearing with seals or shields

Single row deep groove ball bearings with seals or shields are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.Integral sea

ling prolongs bearing service life

Simple, versatile and robust design

Low friction and high-speed capability

Accommodate radial and axial loads in both directions

Require little maintenance

Knowledge and introduction of bearings    :                                                                                                 

The 6919 bearing is a type of deep groove ball bearing that is highly regarded for its reliability and performance in various mechanical applications. Below is a detailed introduction to this bearing in English:

Basic Specifications

• Bearing Type: Deep Groove Ball Bearing

• Bearing Number: 6919

• Inner Diameter (d): 95mm

• Outer Diameter (D): 130mm

• Width/Thickness (B): 18mm

Key Characteristics

• Radial and Axial Load Capacity: The 6919 bearing is designed to support radial loads effectively, and it can also withstand axial loads to a certain degree. This makes it suitable for applications where both types of loads are present.

• High-Speed Performance: Thanks to its precision-manufactured components and smooth rolling contact, the 6919 bearing is capable of operating at high speeds without excessive wear or noise.

• Versatility: This bearing can be used in a wide range of machinery and equipment, including but not limited to automotive components, machine tools, shipping equipment, and railway systems.

Load Ratings and Speeds

• Dynamic Load Rating (Cr): Typically, the 6919 bearing has a dynamic load rating of around 33,500 N (or approximately 3,410 kgf). This rating indicates the maximum load that the bearing can support under dynamic (rotating) conditions.

• Static Load Rating (Cor): Similarly, the static load rating is also around 33,500 N (or approximately 3,410 kgf), which represents the maximum load that the bearing can support under static conditions.

• Limiting Speeds: The limiting speeds for this bearing, depending on lubrication and other factors, can range from several thousand RPM for grease lubrication to higher speeds for oil lubrication.

Materials and Manufacturing

• Materials: The rings, rolling elements, and retainers of the 6919 bearing are typically made of high-quality steel that is heat-treated to enhance its hardness, wear resistance, and fatigue strength.

• Manufacturing Process: The bearing is manufactured through precision machining processes that ensure high accuracy and smooth rolling contact. This includes grinding, lapping, and other finishing operations to achieve the desired surface finish and dimensional accuracy.

Applications

The 6919 bearing is widely used in a variety of industries and applications, including:

• Automotive Industry: It is commonly used in automotive components such as transmissions, engines, and wheel hubs.

• Machine Tools: The bearing is also used in machine tools for precision machining operations.

• Shipping and Railway Systems: It can be found in shipping equipment and railway systems where reliability and durability are crucial.

• Other Industrial Applications: The 6919 bearing is also suitable for use in printing equipment, food processing machinery, textile machinery, and other industrial applications.

Brands and Manufacturers

Several leading bearing manufacturers produce the 6919 bearing, including:

• NSK: NSK is a well-known manufacturer of bearings and related products. Their 6919 bearing is known for its high quality and reliability.

• NTN: NTN also produces a 6919 bearing that meets industry standards and is suitable for a wide range of applications.

• KOYO and NACHI: These manufacturers also offer 6919 bearings that are highly regarded in the market.

Maintenance and Replacement

To ensure the long service life of the 6919 bearing, regular maintenance and inspection are essential. This includes:

• Lubrication: Regular lubrication is crucial to reduce friction and wear. Use high-quality lubricants and follow the manufacturer's recommendations for lubrication intervals.

• Inspection: Regularly inspect the bearing for signs of wear, damage, or contamination. Replace the bearing as soon as possible if any issues are found to prevent downtime and costly repairs.

In summary, the 6919 bearing is a versatile and reliable deep groove ball bearing that is suitable for a wide range of industrial and mechanical applications. Its high-speed performance, radial and axial load capacity, and versatility make it an ideal choice for many machinery and equipment components.

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

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