ABB FSU3210 FSU series ball screws robots convert rotational into linear motion

Here is the parameter introduction of the ABB FSU3210 FSU series ball screws for robots:

• Basic Dimensions:

• Nominal Diameter: The nominal diameter of the FSU3210 ball screw is 32mm, which determines the overall size and load - bearing capacity of the ball screw to a certain extent. A larger diameter can generally bear greater loads.

• Lead: The lead is 10mm, meaning that when the screw rotates one full turn, the nut will move 10mm axially along the screw. The lead affects the linear motion speed and positioning accuracy of the robot. A smaller lead can achieve higher - precision positioning, while a larger lead can increase the motion speed.

• Nut Dimensions and Hole Spacing: The distance between the symmetrical mounting holes of the nut is 65mm, which is an important dimension for installing the nut on the robot and ensuring proper connection and force transmission with other components.

• Ball Diameter and Circulation Mode: The ball diameter is 6.35mm. The FSU3210 ball screw usually has two common circulation modes, external circulation and internal circulation. In the external circulation mode, the balls return to the space between the screw and the nut through a spiral groove or a tube on the outer surface of the nut after completing the circulation process. In the internal circulation mode, a cylindrical key - type reverse device is used. Its cylindrical part is embedded in the nut, and the end is provided with a reverse groove to guide the balls to circulate inside the nut.

• Load-Bearing Capacity:

• Dynamic Rated Load: The dynamic rated load of the FSU3210-3 model is 3775kgf, and that of the FSU3210-4 model is 4834kgf. The dynamic rated load indicates the maximum load that the ball screw can withstand under dynamic conditions, that is, during the actual operation of the robot, it can ensure reliable operation without excessive wear or deformation when subjected to this load.

• Static Rated Load: The static rated load of the FSU3210-3 model is 5877kgf, and that of the FSU3210-4 model is 7835kgf. The static rated load represents the maximum load that the ball screw can bear when it is stationary or in a static state, which is an important parameter to consider when the robot is in a standby state or subjected to static external forces.

• Other Parameters: The FSU3210 ball screw is made of high - quality materials such as SCM450, S55C, and CF53, which have good mechanical properties and wear resistance, ensuring the service life and reliability of the ball screw. The thread type is usually right - handed, but some models can also be produced as left - handed threads according to customer requirements to meet the specific installation and operation needs of different robots.