What are the selection criteria for trapezoidal screw?

Trapezoidal screw products are easy to adjust based on specific applications to achieve expected performance while minimizing costs. In some cases, life testing may be required during the design phase, but for original equipment manufacturers, conducting such additional work in the early stages can help reduce product costs.

1.Determine the usage conditions based on the weight of the moving object, feed rate, operating mode, screw shaft speed, stroke, installation direction (horizontal or vertical), lifespan, and positioning accuracy.

2. Pre select the specifications and usage conditions of the trapezoidal screw , and pre select the accuracy level (C3~C7), shaft diameter, pitch, and total length of the ball screw.

3. Confirm basic safety. ① Confirm that the allowable axial load is within the allowable axial load range of the screw shaft. ② Confirm that the speed of the screw shaft is within its allowable speed range. ③ Calculate the lifespan time of the screw shaft and confirm that it can ensure the required lifespan time.

4. Conduct discussions based on performance requirements. To improve precision positioning accuracy and responsiveness during control, the following confirmation is required. ① The rigidity of the screw shaft ② changes in lifespan caused by temperature.