The 6903 thin section bearings is a common type of deep groove ball bearing, widely used in various mechanical equipment. This article will delve into the structure, characteristics, application fields, as well as selection and maintenance recommendations of the 6903 bearing, helping you gain a better understanding of this crucial component.
According to feedback from a bicycle brand, the rear guide wheel exhibited noticeable wobbling after prolonged use, leading to unstable chain operation and negatively impacting overall riding performance and experience. A thorough investigation revealed that the issue primarily stemmed from the miniature ball bearing (model: 607-2RS) used in the rear guide wheel, where the gap configuration had not been optimized according to actual requirements. We worked closely with the client's engineers to implement improvements.
A well-known motor manufacturer in Asia frequently encountered issues with abnormal bearing noise and poor operation during equipment usage. Despite multiple inspections, the root cause remained undetected, leading to shortened product lifespan, reduced equipment stability, and significantly increased maintenance costs. Through in-depth customer consultations and problem analysis, we identified that the oil leakage issue stemmed from a design flaw in the cover structure provided by the original supplier. To address this, we delivered a customized solution.
It is commonly referred to as "bearing" in English, while in Taiwan, it is usually called "軸承". The fundamental principle of a bearing involves the placement of rolling elements, such as balls, needles, or rollers, between the inner and outer rings to facilitate smooth rotation of the shaft.
A sleeve bearing (also known as a bushing bearing or plain bearing) is a straightforward and fundamental type of bearing. It primarily consists of an inner metal sleeve (known as the bushing) and an outer metal sleeve. Between these two sleeves is a layer of special lubricating material. This is usually a sliding surface covered in grease or oil.
Ceramic bearings, as the name suggests, are bearings made from advanced ceramic materials, typically silicon nitride (Si3N4) or zirconia (ZrO2). Ceramic bearings have emerged as a revolutionary component, pushing the boundaries of what traditional steel bearings can achieve.
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