Wind turbine generator insulating bearing sleeves

Fiberglass and epoxy integrally wound flange insulating rings are used for electrical isolation between generator flanges, cutting off the shaft voltage transmission path and suppressing bearing erosion caused by shaft current; the integral winding layer bonding is reliable, and it can withstand bolt tightening loads without cracking or delamination; it is resistant to oil, moisture, and marine salt spray, meeting the 20-year design life of wind turbines.