Hardened steel bushings are sliding bearings made from steel that’s been hardened. This gives them superb wear and friction resistance, plus good corrosion resistance and the ability to handle a wide temperature range. There are self – lubricating types for less maintenance, heavy – load ones with special reinforcements, and high – speed versions for rapid operations.

Used in automotive engines, industrial gear, and heavy equipment, they’re installed in key parts to cut wear, boost efficiency, and take on pressure and impacts. They last long, cost little to maintain, and are reliable. Many makers offer custom – made ones to fit specific customer needs.

Hardened steel bushings are usually made of medium-high carbon steel or alloy steel (such as chrome-molybdenum steel, chrome-vanadium steel). Through heat treatment processes such as carburizing, quenching and tempering, their surface hardness reaches 56-62 HRC. They have both high wear resistance and core toughness, and are suitable for heavy load, high speed or impact conditions. Their lubrication requirements depend on the actual working conditions. High-frequency and heavy-load scenarios require regular replenishment of high-performance grease to reduce friction and heat dissipation, but there is no need for fixed daily lubrication. Reasonable maintenance can significantly extend the service life.

Thanks to the hardening process, hardened steel bushings have high load capacity, excellent wear resistance and ultra-long service life, and are suitable for extreme pressure and wear environments. They are cost-effective. Although the initial cost is slightly higher, the total cost of ownership (TCO) is lower by reducing replacement and maintenance. At the same time, they have wide temperature adaptability (-30°C to 800°C), corrosion-resistant coating compatibility and high-precision processing characteristics, making them reliable and durable core components in the fields of machinery, automobiles, aerospace, etc.

Hardened steel bushings are widely used in core mechanical components in high load, high wear and extreme environments, covering automotive (gearbox, suspension system), aerospace (aircraft landing gear, engine bracket), industrial machinery (hydraulic equipment, robot joints), energy (wind turbines, oil and gas drilling), railway (train suspension), marine (ship propulsion system) and mold manufacturing (injection molding machine guide rails) and other fields. Its excellent wear resistance, corrosion resistance, temperature stability and high load bearing capacity ensure reliability and long-term performance under harsh working conditions, making it an ideal choice for reducing maintenance costs and increasing equipment life in key moving parts.