Vacuum pump rotor

The utility model discloses a vacuum pump rotor which comprises a rotor body, an installation through hole is formed in the middle of the rotor body, four rotor grooves which are arranged at equal intervals are formed in the periphery of the installation through hole, and a lubricating layer is formed on the outer wall of the periphery of the rotor body. The lubricating degree of the rotor in the working process can be increased through the arranged lubricating layer, the abrasion degree is reduced, and the service life of the rotor is prolonged. 本实用新型公开了一种真空泵转子，包括转子体，所述转子体的中部形成安装通孔，在所述安装通孔四周形成4个等间隔排列的转子槽，在所述转子体四周外壁上形成润滑层；本实用新型通过设置的润滑层可以增加转子在工作过程中的润滑程度，降低磨损度，延长其使用寿命。