Demy

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Ningbo Demy (D&M) Bearings Co., Ltd.
Ningbo Demy (D&M) Bearings Co., Ltd.
Ningbo Demy (D&M) Bearings Co., Ltd. is China Cylindrical Roller Bearings Manufacturers and Cylindrical Roller Bearings Factory, located on the coast of Eastern China, in the beautiful and ancient city of Ningbo, is a rising star enterprise, Ningbo Demy (D&M) Bearings Co., LTD. Its subsidiary company – Ningbo Giant Bearing manufacturing Co., Ltd specializes in high class quality bearings for industrial and automotive applications.
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Cylindrical Roller Bearings Industry knowledge

What should be noted when cylindrical roller bearings work in high temperature environments?

Lubricant selection: High temperature will accelerate the aging of lubricants, so it is necessary to select lubricants with good thermal stability, such as synthetic oil or high-temperature grease.
Lubrication frequency: In high temperature environments, lubricants may lose or deteriorate faster, so lubricants need to be checked and replenished more frequently.
Bearing materials: Components such as inner and outer rings, rolling elements and cages of bearings should be made of high-temperature resistant materials to prevent deformation or damage at high temperatures.
Sealing system: High temperatures may affect the performance of sealing materials, so high-temperature resistant seals need to be selected to prevent lubricant loss and contaminant intrusion.
Cooling measures: In some cases, additional cooling systems may be required to help control the temperature of the bearing.

What are the options for cylindrical roller bearings in applications with low noise requirements?

Bearing type: Some types of bearings are designed with lower noise characteristics, such as deep groove ball bearings or self-aligning ball bearings.
Accuracy level: Choose bearings with a higher manufacturing accuracy level, because the higher the accuracy, the smoother the bearing runs and the lower the noise.
Bearing configuration: Some bearing configurations, such as double-row bearings, can provide better noise control.
Installation accuracy: Ensure the centering accuracy when the bearing is installed to avoid additional noise caused by improper installation.

What are the options and maintenance of cylindrical roller bearings in long-life applications?

Bearing material: Choose high-carbon chromium bearing steel that has undergone special heat treatment, or use ceramic materials, which have higher wear resistance and load-bearing capacity.
Bearing design: Choose bearings designed to withstand high loads and long-life applications, such as bearings with larger rolling element diameters and optimized raceway shapes.
Preload: Properly increasing the preload of the bearing can increase the stiffness and life of the bearing, but it needs to be adjusted according to the specific application.
Maintenance cycle: Develop a reasonable maintenance plan and regularly check the operating status of the bearing, including temperature, vibration and noise levels.
Cleaning and inspection: Clean the bearings and bearing seats regularly, and check whether the bearings have signs of wear, damage or foreign matter intrusion.