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山东盛阳精密轴承制造有限公司

Shandong Shengyang Precision Bearing Manufacturing Co., Ltd.

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Tel:0635-2814888

Fax:0635-2814999

Phone:13616386666

Phone:13616382555

E-mail:lxsyzc@163.com

Address:Yan Xingyuan,

Tangyuan Town,Linqing

City,Shandong Province

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Attention problems in the operation of cylindrical roller bearings

During the curing process of the inner and outer shell of cylindrical roller bearing, it is a link that is more prone to quality problems, which directly affects the performance of the bearing after conversion. In the process of curing, it is necessary to grasp well, especially the fusion and curing conditions of bearing materials.

First, the casting temperature is moderate. When the casting temperature is too low or the backing is not fully preheated for large-scale tin-based or lead-based bearing alloy linings, bubbles will appear on the bonding surface of the backing. After the bubbles appear, it will reduce the heat dissipation capacity of the second-class imported bearings in Wuhan, and reduce the wear resistance of tin-based or lead-based bearing materials. 

Secondly, the alloy materials of multiple metals are unevenly fused and distributed. For example, the solubility of copper and lead metal is low. When the temperature and the degree of stirring are not suitable, uneven lead distribution is likely to occur. In order to avoid uneven distribution of copper-lead alloy, it should be cooled quickly after casting. A better way is to use powder metallurgy to manufacture copper-lead alloy bearing bushes, which can completely solve the problem of uneven lead distribution in copper-lead alloy.

Then, ensure that the tin-based and lead-based bonding are balanced, which can strengthen the tin-based and lead-based bearing alloys and help the heat dissipation of the bearing shell surface. Before casting tin-based and lead-based bearing alloys, tin should be hung on the backing bonding surface, and the temperature of backing and bearing alloys must be strictly controlled. This can reduce the balance point of maintaining the bonding of tin-based and lead-based bearing alloys, facilitate rapid production, and improve productivity and benefits . 

Also, avoid large crystals in the material after casting. During the cooling and solidification process of the cast bearing alloy, if the cooling rate is very slow, the size of the tin-antimony grains will exceed 0.1mm, which directly affects the toughness and strength of the bearing, and the bearing is prone to fracture , Wear and tear.

The production department must grasp the smelting and solidification process of the bearing material, and pay special attention to the smelting material before smelting. In-depth understanding of the bearing smelting material according to the cylindrical roller bearing can reduce the occurrence of accidents.


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Hotline:136-1638-6666

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Address:Yan Xingyuan Industrial Park, Tangyuan                   Town,Linqing City, Shandong Province

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