How to identify refurbished bearings?
Resource from: https://www.lbcnbearing.com/ Likes:149
Aug 12,2022
Bearings are common parts and key parts in industrial equipment, and the application of bearings is also very common. In order to make money, many businesses recycle some old bearings that have been used or have not been used as new bearings to buy. Today, LBCN Bearing will share with you how to identify whether the bearings are refurbished bearings when purchasing bearings.
1. Refurbishment of bearings is generally limited by the technical skills and machinery and equipment of small bearing manufacturers, so the bearing precision is low, the bearing surface is not smooth, the size of the rounded corners is uneven, and some have black skin and black spots.
2. The raw materials used for some fake and inferior bearings are general stainless steel sheets, carbon steel, malleable steel, and galvanized pipes, etc. Most of the materials are white in appearance, and the color of special bearing steel is greenish, but the color is still different. If it is not possible, it is necessary to make a thorough judgment on the strength. Generally, the strength of stainless steel plates is low.
3. Some small manufacturers are technically simple to dip in the fire, and the bearing will be slightly deformed when it is heated unevenly.
4. Rotate the spherical roller bearing to see if the rotation of the bearing is symmetrical and whether the sound is continuous without noise.
5. Looking at the cage, the bearing cage of the reliable manufacturer is neat and free of burrs, and the riveted bearing cage bolts have the same size of the pier head, while the unreliable manufacturer is technically technical in production and processing and simple in machinery and equipment, so the cage is not smooth and has Some riveted structural cages are unevenly divided and aligned, and the bolt pier heads are different in size or riveted.
6. Look at the packaging. Reliable manufacturers have consistent packaging, and the fonts on the packaging are clear. Some counterfeit bearings have inconsistent packaging, or are simply unreliable.
7. Look at the font of the inner hole of the bearing. The original bearing is very clear and well-proportioned regardless of the steel font or the laser font. The laser font has a certain depth. The counterfeit bearing font has broken marks, and the laser font is wiped off with a sand cloth. However, after wiping the font of the reliable laser with a sand cloth, there will be vague font imprints.
8. Look at the certificate. The bearings of reliable manufacturers all have the certificate and the size of the certificate is the same. Most of the certificate printing paper is oil-proof paper. The fonts are clear, and some manufacturers' certificates have the content of viewing information on them. The certificates are fake, and the fonts are blurred. The printing paper is general printing paper, and the size of the certificate is different. It is recommended to set aside a reliable manufacturer's certificate for reference.
1. Refurbishment of bearings is generally limited by the technical skills and machinery and equipment of small bearing manufacturers, so the bearing precision is low, the bearing surface is not smooth, the size of the rounded corners is uneven, and some have black skin and black spots.
2. The raw materials used for some fake and inferior bearings are general stainless steel sheets, carbon steel, malleable steel, and galvanized pipes, etc. Most of the materials are white in appearance, and the color of special bearing steel is greenish, but the color is still different. If it is not possible, it is necessary to make a thorough judgment on the strength. Generally, the strength of stainless steel plates is low.
3. Some small manufacturers are technically simple to dip in the fire, and the bearing will be slightly deformed when it is heated unevenly.
4. Rotate the spherical roller bearing to see if the rotation of the bearing is symmetrical and whether the sound is continuous without noise.
5. Looking at the cage, the bearing cage of the reliable manufacturer is neat and free of burrs, and the riveted bearing cage bolts have the same size of the pier head, while the unreliable manufacturer is technically technical in production and processing and simple in machinery and equipment, so the cage is not smooth and has Some riveted structural cages are unevenly divided and aligned, and the bolt pier heads are different in size or riveted.
6. Look at the packaging. Reliable manufacturers have consistent packaging, and the fonts on the packaging are clear. Some counterfeit bearings have inconsistent packaging, or are simply unreliable.
7. Look at the font of the inner hole of the bearing. The original bearing is very clear and well-proportioned regardless of the steel font or the laser font. The laser font has a certain depth. The counterfeit bearing font has broken marks, and the laser font is wiped off with a sand cloth. However, after wiping the font of the reliable laser with a sand cloth, there will be vague font imprints.
8. Look at the certificate. The bearings of reliable manufacturers all have the certificate and the size of the certificate is the same. Most of the certificate printing paper is oil-proof paper. The fonts are clear, and some manufacturers' certificates have the content of viewing information on them. The certificates are fake, and the fonts are blurred. The printing paper is general printing paper, and the size of the certificate is different. It is recommended to set aside a reliable manufacturer's certificate for reference.
(https://www.lbcnbearing.com/)
【CBCC News Statement】
1.The news above mentioned with detailed source are from internet.We are trying our best to assure they are accurate ,timely and safe so as to let bearing users and sellers read more related info.However, it doesn't mean we agree with any point of view referred in above contents and we are not responsible for the authenticity. If you want to publish the news,please note the source and you will be legally responsible for the news published.
2.All news edited and translated by us are specially noted the source"CBCC".
3.For investors,please be cautious for all news.We don't bear any damage brought by late and inaccurate news.
4.If the news we published involves copyright of yours,just let us know.
1.The news above mentioned with detailed source are from internet.We are trying our best to assure they are accurate ,timely and safe so as to let bearing users and sellers read more related info.However, it doesn't mean we agree with any point of view referred in above contents and we are not responsible for the authenticity. If you want to publish the news,please note the source and you will be legally responsible for the news published.
2.All news edited and translated by us are specially noted the source"CBCC".
3.For investors,please be cautious for all news.We don't bear any damage brought by late and inaccurate news.
4.If the news we published involves copyright of yours,just let us know.
Previous 2022 ZWZ August new product: China largest spherical roller spindle bearings for wind power from ZWZ was developed and and successfully delivered to users
Next Bearing inner and outer ring positioning and fixing method
Next Bearing inner and outer ring positioning and fixing method
BRIEF INTRODUCTION
Cnbearing is the No.1 bearing inquiry system and information service in China, dedicated to helping all bearing users and sellers throughout the world.
Cnbearing is supported by China National Bearing Industry Association, whose operation online is charged by China Bearing Unisun Tech. Co., Ltd.
China Bearing Unisun Tech. Co., Ltd owns all the rights. Since 2000, over 3,000 companies have been registered and enjoyed the company' s complete skillful service, which ranking many aspects in bearing industry at home and abroad with the most authority practical devices in China.
