What is a Sliding bearing?

Sliding bearings (or plain bearings) are mechanical components that support the rotational movement of a shaft by utilizing friction between the rotating shaft and the fixed bearing surface. Unlike rolling bearings (such as ball or roller bearings), sliding bearings do not use rolling elements but instead rely on direct surface contact for rotation support. This makes them structurally simpler and capable of supporting higher loads. They are commonly used in low-speed applications or situations where high load capacity is required.

There are several types of sliding bearings:
・Journal bearings: The rotating shaft slides within the bearing. Typically, lubrication is used to reduce friction.
・Thrust bearings: Designed to absorb axial loads while allowing rotational motion.
Features:
・High load capacity: Many types of sliding bearings can handle significant loads.
・Simple design: They have fewer parts compared to rolling element bearings.
・Excellent performance in low-speed applications: Ideal for applications where slow rotation or high load is required.
・Self-lubricating: Some sliding bearings come with self-lubricating materials, reducing maintenance needs.

Application of Sliding bearing

１．Automotive engines: Journal bearings are used in the crankshaft and camshaft of engines.
２．Industrial machinery: Used in heavy equipment and conveyor systems to support large loads.
３．Electric motors: Used in the bearings inside low-speed motors to support rotational motion with reduced friction.
４．Aerospace: Used in aircraft engines and rotating parts within aircraft systems.

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