TURBOBLASVORRICHTUNG FÜR LASER UND LASEROSZILLATOR, DER DIESE VERWENDET

摘要

This invention relates to a turbo-blower for laser comprising a shaft (26) for supporting a turbo-blade (16) at its tip, a pair of bearings (19, 20) for supporting the shaft (26) and motors (17, 18) for rotating the shaft (26). Lubrication of the bearings (19, 20) is done by grease and grease reservoirs (32, 33) are formed adjacent to the bearing (19, 20). An inner race, a retainer, a rolling member, and the like, rotate with the rotation of the shaft (26). This rotation generates a centrifugal force acting on the grease inside the bearings (19, 20) and the grease scatters from the bearings (19, 20). The scattering grease is received by the grease reservoirs (32, 33). The grease in the grease reservoirs (32, 33) flows gradually into the bearing (19, 20) due to its viscosity. Since such grease reservoirs are disposed and the grease is replenished properly, filling of the grease becomes unnecessary.