Lubricant supply unit and bearing device

摘要

A lubricating oil supply unit and a bearing device capable of stably operating in the long term are provided. A lubricant tank 30 for holding lubricant supplied to the inside of the bearing 11 and a supply portion for supplying lubricant to the inside of the bearing from the holding portion (drive circuit 28, pump 29, (Nozzle 32 and nozzle 37). The supply section includes a pump provided with a pump capable of sucking lubricating oil from the holding section and applying a discharge pressure equal to or higher than a reference value to the lubricating oil, a supply line (discharge tube and nozzle) connected to the pump and extending in the bearing, (Check valve 80) for circulating the lubricating oil subjected to the pressure in the supply line and preventing the lubricating oil supplied with the discharge pressure less than the reference value from flowing in the supply line.;