ABB DFU1605-4 DFU series ball screws robots convert rotational into linear

Here is the parameter introduction of ABB DFU1605-4 in the DFU series ball screws:

Basic Dimensions

Screw Shaft Diameter (d) : It is 16 mm, which is the outer diameter of the screw shaft. This size provides a balance between load-bearing capacity and space occupation, making it suitable for applications where space is limited.

Lead (i) : The lead is 5 mm, meaning that for each complete rotation of the screw, the nut will move 5 mm along the axis of the screw. This lead value is designed to meet the requirements of speed and precision in robotic applications, enabling relatively fast linear motion while ensuring high - position accuracy.

Nut Dimensions : The nut has a size of 28 mm in outer diameter (Da), 48 mm in length (L), and 10 mm in width (W). These dimensions are crucial for integrating with other components in the robot and ensuring smooth operation.

Load Capacity

Dynamic Load Rating (Ca) : It can reach 885 N, which indicates the ability of the ball screw to withstand repeated dynamic loads during operation. This parameter is important for applications where the robot is subject to frequent start - stop motions and varying loads.

Static Load Rating (Coa) : The static load rating is 1525 N, representing the maximum static load that the ball screw can bear without causing permanent deformation. This value is significant for ensuring the stability and reliability of the robot when it is in a stationary state or subjected to static forces.

Other Parameters

Material : Usually made of bearing steel such as GCr15 (with a hardness of HRC60 - 62) or 9Cr18 (with a hardness of HRC55 - 58). These materials offer high strength, wear resistance, and good fatigue resistance, ensuring a long service life for the ball screw.

Axial Play : The axial play is within the range of 0 - 0.005 mm and can be designed to be zero. This small axial play ensures high - precision linear motion and reduces the occurrence of errors and vibrations during the operation of the robot.

Efficiency : The efficiency is greater than 90%, which means that it can effectively convert the rotational motion into linear motion with minimal energy loss. This high efficiency helps to reduce power consumption and improve the overall performance of the robot.

Accuracy Grade : It is available in accuracy grades such as C1, C3, and C5. The higher the accuracy grade, the higher the positioning accuracy and motion smoothness of the ball screw, meeting the high - precision requirements of different robotic applications.