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NSK bearings: what are they and how do they work?



There are three main areas in the world where bearings are consumed: Europe, North America, and Asia. However, Asia accounts for about 50% of total bearing consumption, while Europe and North America account for 25% each. In Central Europe, China, and Eastern Europe, limited bearings dominate; NSK bearings is the largest bearing provider with 2% market share. The bearing industry has long been an important component manufacturer.


For mechanical components, the manufacturing difference is typically no more than 0.01mm, but its accuracy is typically measured in microns. It is mainly the bearing's value and expertise that determines the sound and vibration produced by the motor. As NSK expanded rapidly in Asia in the mid-1990s, it provided sales, R&D, and technical services locally. The company is constantly strengthening its corporate structure, particularly in fast-developing markets such as China.

What is a NSK bearing and how are they used?

These miniature bearings are sometimes referred to as tool bearings or micro bearings, and they are used in a variety of applications.


The spherical roller bearing is a rolling-element bearing that permits angular misalignment and rotation with low friction.


Ball bearings with angular contacts are designed for both axial and radial loads, and have been specifically engineered for high speed and high precision applications.


The cylindrical roller bearing has a modest design with its cylindrical rollers in line contact with the raceways. It can support a large load volume under radial loads. It is also specifically designed for axial and radial load applications.


Ball bearings with deep grooves are the most commonly used bearing type and are particularly versatile. Their low resistance, small noise, and little vibration allow them to provide maximum rotation speed.


These bearings are classified as thrust or radial bearings based on the direction of load. They have long and narrow cylindrical rollers that sometimes exceed the scope of the JIS/ISO standards.


Despite the most challenging conditions, tapered roller bearings are designed to handle axial and radial loads simultaneously.


Industrial audio-visual, medical, robotic, and office automation equipment benefit from thin section ball bearings.


Thrust ball bearings - It has two variants, the single direction, and double direction. Single direction Thrust Ball Bearings are used in pressed steel cages and machined brass cages while the Double- Direction Thrust Ball Bearings are almost the same in a single direction there is a difference in diameter series.

Are there any types of NSK bearings available on the market today and what are their features and benefits?

Bearings with deep grooves

Deep-channel ball bearings are the most common type of bearing and are used in a wide variety of applications.

Bearings with angular contact

-NSK's angular contact ball bearings have been designed to meet the progressively demanding requirements of original equipment manufacturers. These bearings can sustain significant axial loads and radial loads simultaneously.



Ball bearings with self-alignment

-This type of ball bearing is suggested when the alignment of the housing and shaft is problematic and the shaft may bend. The external ring has a spherical channel and its center of curving coincides with that of the bearing; thus, the axis of the internal ring, balls, and cage can bounce to some amount around the bearing center.

Ball bearings for thrust

-Thrust ball bearings are classified into those flat seats or aligning seats based on their outer ring seat shape. They can withstand axial loads but not radial loads at all. Single-Direction Thrust Ball Bearings usually use hard-pressed steel cages and machined brass cages. The cages in Double-Direction Thrust Ball Bearings have the same diameter sequence as those in Single-Direction Thrust Ball Bearings.

In conclusion

In this study, the purpose was to educate bearing users. Based on the analysis carried out, it is possible to conclude there are different types of NSK 30328 bearings and functions. This study could benefit other people working in bearing industries.

Creation date: Apr 24, 2024 10:57am     Last modified date: Apr 24, 2024 10:58am   Last visit date: May 25, 2024 3:31am