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Features of Planetary Roller Screw

Views:6     Author:Site Editor     Publish Time: 2021-02-04      Origin:Site

High load capacity.The planetary roller screw is in line contact, and the increase of the contact surface greatly improves the load-bearing capacity and rigidity. Therefore, it has high rigidity and high load capacity, which is more than 3 times higher than that of the same specification ball screw pair (the highest is more than 10 times).
Shock proof: The ability to withstand impact loads is strong and work reliably.

small volume: Under the same load, the volume of the planetary roller screw is 1/3 smaller than that of the ball screw.

High speed: The maximum linear speed can reach 2000mm/s, and the input rotation speed can reach 5000rpm or higher. The maximum acceleration can reach 3g.

Low noise: It avoids the restriction of the return device on the DN value, and realizes high-speed driving under the condition of small lead, DN≥140,000, Vmax≥60m/min, angular acceleration 7.000r/s2, low vibration and low noise.

High precision: The screw shaft is a non-circular thread with a small lead angle, which is conducive to achieving higher lead accuracy and can realize precise micro-feed. Lead accuracy, KL5=±0.005mm, lead accuracy KL10 (standard)=±0.01mm. (315mm stroke)

Long life: The static load that the planetary roller screw can bear is 3 times that of the ball screw, and the life is 15 times that of the ball screw.

The integrated nut assembly is easily separated from the screw shaft, and the rolling elements and related parts will not be scattered, which is convenient for installation and maintenance.

Strong adaptability to harsh environments (low temperature, dust, chemical deposition, no lubrication, etc.).

Nut form: single nut, double nut, pre-tightening nut, etc.

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