SF-1 bushings

Oil‑free bushings (also known as self‑lubricating bushings, maintenance‑free bushings, oilless bearings, or dry plain bearings) are sliding bearings that operate reliably over long periods without external oil or grease. Their core performance characteristics include: maintenance‑free operation, high load capacity (dynamic pressure up to 140 N/mm²), a wide operating temperature range (‑200 °C to +280 °C), excellent resistance to contamination and corrosion, and a very low coefficient of friction (as low as 0.08 under dry running conditions). These properties make oil‑free bushings suitable for a broad range of applications: automotive chassis and engine components, construction machinery, heavy mining equipment, food and pharmaceutical machinery, cleanroom automation, renewable energy systems (e.g. wind turbine pitch control), marine and offshore engineering, and industrial robotics. Compared with conventional oil‑ or grease‑lubricated bearings, oil‑free bushings eliminate unplanned downtime caused by lubrication failure, reduce total life‑cycle maintenance costs, and meet environmental regulations such as RoHS and REACH.