Rolling bearing features
Features of Rolling Bearings
Source: China Bearing Network | Date: June 27, 2014
Rolling bearings are essential mechanical components used to support rotating shafts and other moving parts. They were among the first mechanical elements to be mass-produced in a professional manner. In the early 20th century, Western countries had already established a mature bearing industry. Over time, the performance, lifespan, cost reduction, variety expansion, and application range of bearings have continuously improved, supported by ongoing theoretical research and advanced calculation methods. Today, the selection process for rolling bearings is well-established, with a wide range of standardized products available. The precision, durability, and reliability of these bearings can meet the demands of various industries, including cutting-edge technologies. A typical rolling bearing consists of an inner ring, an outer ring, a set of rolling elements (such as balls or rollers), and a cage that maintains the correct spacing between the rolling elements. The inner and outer rings, along with the rolling elements, are typically made from high-carbon chrome steel or carburized steel. These materials are heat-treated to achieve optimal hardness, ensuring resistance to rolling contact fatigue. The bearing surfaces are ground to very high precision using specialized machinery. Although each type of rolling bearing has its own unique characteristics, most share several common features: - Rolling bearings have low starting friction, making them efficient in motion. - Their dimensions and precision are standardized, making high-quality bearings easily accessible. - Compared to sliding bearings, they are less prone to wear, helping maintain machine accuracy over time. - Maintenance and repair costs are significantly lower than those of sliding bearings. - Many types of rolling bearings can handle both radial and axial loads.
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