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SKF - a supplier of bearings, seals, mechatronics, lubrication systems and services - has announced a new axial excluder seal. According to the company, the HRC1 seal offers an ideal alternative to conventional rubber seals for protecting wind turbine main shaft bearings from contaminants.

SKF says the seal can help wind farm operators significantly reduce the risks of contaminant-related bearing failures and the high costs of associated unplanned downtime, repair and lost productivity. It is manufactured from a proprietary SKF polyurethane material exhibiting resistance to wear, abrasion, UV radiation and ozone.

In early field trials, SKF says it installed the HRC1 on 40 separate 2.5 MW turbines operated continuously under real-world conditions, and after three months, an initial inspection revealed only normally expected run-in wear.

HRC1 axial displacement seals are available in standard solid and split versions for shaft sizes from 1 meter to 3 meters. Custom solutions can be developed.



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