2026-05-21 Original Article
The electrical and electronics industry relies on components like small motors, relays, and sensors. These often demand reliable, maintenance-free operation. Sintered bearings have become a cornerstone technology here. They are fundamentally defined by their self-lubricating nature, a direct result of their manufacturing process. Sintered bushings are produced by compacting metal powder into a shape and then sintering at high temperatures to create a solid piece. This creates a porous metal structure.
The choice of material hinges on specific application demands. According to technical comparisons, sintered iron bearings provide higher strength and cost-effectiveness versus alternatives like sintered bronze. This makes them a practical option for many electrical applications. The porous structure is then impregnated with oil. For small motors used in places where oil cannot be applied later, sintered oil-impregnated bearings that contain lubricant in their porous metal bodies provide a lasting solution.
Recent product developments reflect a strategic move toward high-performance, maintenance-free solutions. In 2024, a major manufacturer launched its new composite oil-impregnated bearings designed for high-temperature industrial applications. This product integrates advanced ceramic composites to withstand operating temperatures exceeding 200 degrees Celsius. This development shows a market shift toward durability and performance under stress. The number of motors around the world is increasing due to electrification, and bearings are important components that support axes in these motors.
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