(1) The world's fifth largest bearing supplier Japan NTN Co., Ltd.
(2) NTN-the world's comprehensive precision machinery manufacturer
(3) NTN's precision machining technology and unique proprietary technology are accumulated and developed on the basis of long-term development of bearings, and are widely used to produce precision machinery for use in all fields. This is a new symbol of NTN development that continuously creates new value.
(4) How to minimize friction coefficient and improve energy efficiency? NTN's bearing technology has reached the world's only nanometer unit size-nano-level precision.
(5) NTN's various bearing products are produced with high-precision processing and detection technology in units of 0.01 microns, from ordinary household appliances that require both high performance and low cost, until they are required in a harsh working environment As far as the aerospace rocket that can still normally play its bearing function, NTN bearings laid the foundation for the development of machinery in various industries and various uses.
NTN Bearing Company actively carries out activities to protect the global environment.
(6) NTN Bearing Company has actively carried out activities to protect the global environment. Passed the demonstration of the international standard ISO14001 for environmental management and supervision, and developed environmentally friendly [ECO series] products. Furthermore, we set the 21st century as the environmental century and deliberately pursue the goal of [zero emissions] to eliminate all waste.
(7) NTN imported bearings-the world's comprehensive precision machinery manufacturer
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The rotation load has the following three cases: 1) The load direction is fixed and the ferrule rotates; 2) The load vector rotates and the ferrule is stationary; (3) The load vector and the ferrule rotate at different speeds.
NTN bearings are widely used to produce precision machinery for use in all fields. How to minimize friction coefficient and improve energy efficiency? This kind of precision that was purely extravagant in the past has already been used in various fields such as orbit satellites, aviation, railways and automobiles, paper making equipment, office equipment and food machinery!
NTN common bearing classification: NTN miniature ball imported bearings, NTN deep groove ball imported bearings, NTN radial thrust ball imported bearings, NTN self-aligning ball imported bearings, NTN cylindrical roller imported bearings, NTN tapered roller imported bearings, NTN thrust Ball bearings, NTN self-aligning roller bearings. Can provide users with technical advice and after-sales service.
In addition, Japan ’s leading NTN bearing products include: NTN rolling bearings, NTN deep groove ball bearings, NTN high-precision bearings, NTN self-aligning bearings, NTN seated bearings, NTN flat ball bearings, NTN short cylindrical roller bearings, NTN Linear guide bearing, NTN ball screw bearing, NTN miniature linear guide bearing, NTN cross roller guide bearing, NTN reciprocating bearing revolving bushing bearing, NTN bearing ball slide group, NTN bearing cam follower bearing.
It mainly consists of three parts: rear number, front number and basic number. The rear number indicates the material, tolerance and structure of the NTN bearing in English and Arabic numerals. Under normal circumstances, the NTN bearing model is only indicated by the basic model. The basic model is also composed of three parts, namely: type code, size code and inner diameter code. The leading number indicates other parts of the bearing, such as: sub-components, expressed in English.
Rolling bearing model rules
First of all, taking rolling bearings as an example, they are the front number, rear number, and basic number.
NO1. Prefix number
In reality, there are many types of rolling bearings used, and the number representation is relatively complicated. The leading number of NTN bearings indicates sub-components, expressed in English. For example, K is used to represent the rolling element and cage assembly of NTN bearings. For a more detailed introduction to NTN rolling bearings, please refer to ntn thrust rolling bearings ntn tapered rolling bearings.
NO2. Post number
The rear number of the bearing indicates the material, tolerance and structure of the bearing in English and Arabic numerals. Commonly used bearing radial clearance series are divided into 6 groups including 1 group and 2 groups. The tolerance of the bearing is divided into six levels from high to low. The internal structure number is followed by the basic code to indicate different internal structures of the same type of bearing.
NO3. Basic number
The basic number indicates the width series, inner diameter, diameter series and type of NTN bearings. The ntn bearing type code is represented by the fifth digit from the right of the basic code (the type code for cylindrical roller bearings and needle bearings is letters), and the inner diameter of the bearing is represented by the first digit from the right of the basic code. The series of changes in outer diameter and width of bearings with the same structure and the same inner diameter are indicated by the third digit from the right of the basic code. For example, for radial bearings and radial thrust bearings, 0 and 1 indicate extra-light series; the bearing structure, inner diameter and diameter series are the same. The series of changes in bearing width are represented by the fourth digit from the right of the basic code. In 1990, China decided to revise the original rolling bearing code designation and formulated national standards.
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