NSK Bearing Cross Reference Chart and Interchange Guide

As a world-renowned bearing manufacturer, NSK manufactures hundreds of thousands of bearing models. However, due to the wide variety of bearing brands on the market, the bearing models of different brands are not completely unified. Therefore, in the actual application of bearings, it is particularly important to understand and master the cross-reference chart and interchangeability of NSK bearings.

Table of Contents

Overview of NSK bearings

NSK was founded in 1916 and is the first company in Japan to manufacture bearings. Today, NSK has become one of the world’s leading bearing manufacturers, and its products cover deep groove ball bearings, cylindrical roller bearings, tapered roller bearings, spherical roller bearings, thrust bearings and other types, which are widely used in automobiles, machine tools, aviation, industrial machinery, precision machinery and other fields. NSK bearings are known for their high precision, high reliability and long life, and can meet various demanding application requirements.

Bearing materials and heat treatment technology

NSK bearings are made of high-quality chrome steel. This material has high strength, high wear resistance and good fatigue resistance. NSK further improves the performance of bearings through advanced heat treatment processes such as carburizing, nitriding and surface quenching. Carburizing treatment can increase the hardness of the bearing surface, thereby improving its wear resistance and fatigue resistance; nitriding treatment forms a hard nitride layer on the bearing surface to enhance its corrosion resistance; surface quenching treatment can improve the surface hardness and wear resistance of the bearing.

Lubrication technology

Lubrication is crucial to the performance and life of bearings. NSK provides a variety of lubrication solutions, including oil lubrication, grease lubrication and solid lubrication. Different application scenarios have different requirements for lubrication methods. For example, high-speed rotating equipment usually chooses grease lubrication, while heavy-load equipment is suitable for oil lubrication. NSK has also developed high-performance greases, such as NSK LUBE, which can maintain good lubrication effects under high temperature, high speed and heavy load conditions, and extend the service life of bearings.

Precision manufacturing and quality control

The manufacturing process of NSK bearings is strictly carried out in accordance with international standards, using high-precision processing equipment and testing instruments to ensure that the dimensional accuracy and performance parameters of each bearing meet the design requirements. NSK’s quality control system covers every link from raw material procurement to product delivery. Through multiple testing methods, such as non-destructive testing, metallographic analysis and life testing, it ensures that each bearing shipped has excellent quality and reliability.

Necessity of bearing cross reference chart

During the maintenance of mechanical equipment, you may encounter the situation where you need to replace a certain brand of bearings with NSK bearings. At this time, the bearing cross reference chart is particularly important. It can help you quickly find the corresponding models between different brands to ensure that the selected bearings can fully meet the performance requirements of mechanical equipment. Aubearing has summarized the NSK bearing cross reference chart based on many years of bearing manufacturing experience and many years of NSK bearing sales experience. In this way, you can easily find the replacement model of the required bearing and avoid equipment failure and loss caused by model mismatch.

Single Row Deep Groove Ball Bearings National Cross Reference

Angular Contact Ball Bearings National Cross Reference

Double Row Ball Bearings National Interchange

Cylindrical Roller Bearings Cross National Reference

Spherical Roller Bearings National Cross Reference

High Precision Angular Contact Ball Bearings Interchange

Ultra High Precision Angular Contact Ball Bearings Cross Reference

Precision Cylindrical Roller Bearings Cross Reference

Thrust Angular Contact Ball Bearings Cross Reference

Notes on NSK bearing interchange

National Bearing interchange refers to replacing the original bearing of a certain brand in the equipment with NSK bearing. In order to ensure the smooth progress of the interchange, the following aspects need to be considered comprehensively:

Size matching

The size of the bearing is one of the most important factors in the interchange process. It mainly includes three parameters: inner diameter, outer diameter and width. When interchanging, it is necessary to ensure that the three dimensions of the NSK bearing are exactly the same as the original bearing, otherwise the bearing may not be installed or run unstably, resulting in downtime or other dangers.

Load capacity

The load capacity of the bearing includes radial load, axial load, dynamic load, static load, etc. Different application scenarios have different requirements for the load capacity of the bearing. When interchanging, it is necessary to ensure that the load capacity of the NSK bearing is at least equivalent to that of the original bearing.

Speed ​​requirement

The speed capacity of the bearing is also one of the important factors to be considered during the interchange process. Different types of bearings have different maximum speed limits. When interchanging, it is necessary to ensure that the NSK bearing can meet the maximum speed requirements of the equipment to avoid equipment damage caused by insufficient speed.

Material and lubrication

The material and lubrication method of the bearing will also affect its performance and life. NSK bearings are made of high-quality chrome steel and advanced heat treatment process, with excellent wear resistance and fatigue resistance. When interchangeable, it is also necessary to consider the matching of lubrication methods to ensure the good operation of the bearings.