The invention discloses a
roller screw rod with spacing bodies. The
roller screw rod with the spacing bodies comprises a screw rod body, a screw nut, a
backflow piece, a plurality of rollers and a plurality of spacing bodies. The screw nut is arranged on the screw rod in a sleeved mode, and a load path is formed between the screw rod body and the screw nut. The
backflow piece is arranged on the screw nut and is provided with a
backflow channel connected with the load path. The rollers are arranged in the load path, and each roller is provided with an external
diameter face. The spacing bodies are arranged between every two rollers, the two sides of each spacing body are respectively provided with a maintaining concave part, and each maintaining concave part is provided with a vertical face and two slant faces. When the rollers are in the load path, the external
diameter face of each roller is in contact with one of the slant faces, and when the rollers are in the backflow channel, the external
diameter face of each roller is in contact with one vertical face. Thus, the
roller screw rod with the spacing bodies has the effects that assembling is easy, the
load capacity of the roller screw rod can be enhanced, and mutual interference with one another among the rollers can be avoided.