Clear seawater stands out as the optimal, cost-effective lubricant for rubber bearings, offering notable advantages over traditional metal bearings. These include an exceptionally low friction coefficient, extended lifespan due to high resistance to friction wear, vibration avoidance through rubber resilience, accommodation of very high peripheral speeds, allowance for high radial loads, and efficient removal of solid particles suspended in water, preventing damage to bearing areas. These attributes result in installation and maintenance cost savings, along with spare-parts interchangeability.
The bearings feature technoplastic resin outer screens composed of 40% mineral reinforcement polyamides. This design neutralizes electrolytic corrosion issues, reduces weight, and lowers costs. Internally, the bearings are lined with sulfur-free soft nitrile black rubber. Lubrication occurs through water, forming a thin film between the shaft and rubber, resulting in an impressively low friction coefficient.
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