​Can Sub - standard Bearing Tiles Cause Damage to Single Cylinder Diesel Engines?

        Among the numerous components of a single-cylinder diesel engine, the bearing bush, though small, plays a crucial role. As an enterprise in the industry dedicated to the research and development and production of single-cylinder diesel engines and related components, Mingyue is well aware of the impact of bearing bush quality on engine performance and lifespan. So, will substandard bearing shells really cause damage to single-cylinder diesel engines?

Material defects cause accelerated wear and tear

        Qualified bearing shells are usually made of specific high-performance alloy materials, featuring excellent wear resistance, anti-seizing property and anti-friction performance. In her long-term production practice and market research, Mingyue found that substandard bearing shells often have serious problems in terms of material. Some inferior bearing shells may have used metal materials with excessive impurity content, and their hardness and toughness cannot meet the working requirements of single-cylinder diesel engines. When the engine is running, this low-quality bearing bush will generate intense friction with the crankshaft, causing the surface of the bearing bush to wear out rapidly. As wear intensifies, the gap between the bearing bush and the crankshaft will continuously increase, which in turn affects the normal operation of the engine and may even cause serious faults such as crankshaft breakage.

Dimensional deviations undermine the fit accuracy

        The fit accuracy requirements among the various components of a single-cylinder diesel engine are extremely high, and the bearing shells are no exception. Mingyue strictly adheres to precise dimensional standards during the production process to ensure that each bearing bush can fit perfectly with the crankshaft and other related components. However, substandard bearing shells often have dimensional deviations. Excessive size will prevent the bearing bush from being installed normally. Forced installation will cause the bearing bush to be subjected to excessive compression, resulting in deformation or even cracking. If the size is too small, the fit clearance between the bearing bush and the crankshaft will be too large, unable to form an effective oil film for lubrication, resulting in the occurrence of dry friction. This dry friction will rapidly generate a large amount of heat, causing the temperature of the bearing bush and crankshaft to rise sharply, further accelerating wear and damage, and seriously affecting the performance and lifespan of the engine.

Rough craftsmanship affects the lubrication effect

        Good lubrication is the key to the normal operation of single-cylinder diesel engines, and the quality of the bearing housing process affects the lubrication effect. Mingyue uses advanced technology to ensure that the oil grooves and holes on the surface of the bearing housing are uniform and fine, guaranteeing that the lubricating oil can smoothly form a stable oil film. However, substandard bearing housings have rough craftsmanship and scratches and burrs on the surface, which can damage the oil film, render the lubricating oil ineffective, increase friction, lead to a decrease in engine power, an increase in fuel consumption, and even cause overheating and cylinder pulling faults.

Improper heat treatment reduces the load-bearing capacity

        Heat treatment is an important process to enhance the performance of bearing shells. Through reasonable heat treatment, the hardness, toughness and wear resistance and other performance indicators of bearing shells can be improved. During the heat treatment process, Mingyue strictly controls parameters such as temperature, time and cooling rate to ensure that the bearing shells have the best mechanical properties. However, some substandard bearing bush manufacturers, in order to cut costs, often neglect the importance of heat treatment processes and adopt inappropriate heat treatment methods. This will lead to an uneven internal structure of the bearing bush, with its hardness and toughness failing to meet the design requirements, thereby reducing the load-bearing capacity of the bearing bush. When a single-cylinder diesel engine is operating at high load, the bearing bush with insufficient load-bearing capacity is prone to deformation or damage, which in turn affects the normal operation of the entire engine.

        Unqualified bearing shells can indeed cause various damages to single-cylinder diesel engines. Mingyue has always been committed to providing customers with high-quality products and services, strictly controlling the quality of components such as bearing shells. Every link from raw material procurement to production process is strictly inspected and monitored to ensure that each bearing shell can meet the working requirements of single-cylinder diesel engines, providing strong support for the stable operation and long-term use of engines.