Calculation of trapezoidal screw torque

The torque of a trapezoidal screw refers to the moment of force required to achieve rotation of the screw. The magnitude of the torque is related to factors such as the screw diameter, pitch, material quality, and stress state. The calculation formula for trapezoidal screw torque is as follows:

T = F*d/2*cosa

In this formula, T represents torque, F denotes the force applied at the screw end, d indicates the screw diameter, and a signifies the angle between the screw and thrust direction. The premise of this formula is that the axial load of the screw and nut is perpendicular. When the load is oblique, the component of the oblique load should first be decomposed into thrust and axial load, and then the component is substituted into the formula to calculate the torque.

Trapezoidal screw thread process quality standards

1. The screw raw material is drawn to the necessary middle diameter size through die polishing, T10*2 trapezoidal screw - which one is the best, and then undergoes secondary cold drawing to achieve an appearance hardness (0.5mm deep) of (18°-21°).

2. The screw is standardized according to GB5796.4-1986.

The trapezoidal screw nut set is a transmission device that converts rotational motion into linear motion, featuring high transmission efficiency, smooth operation, long service life, and the ability to pre-tension. It is widely used in the feeding systems of various medium and small-sized CNC machine tools.

The trapezoidal screw length's effect on diameter

The length of trapezoidal screws affects their diameter due to the influence on their rigidity and load-bearing capacity. Generally, trapezoidal screws with larger diameters have greater load-bearing capacity and higher rigidity, as seen in Jingde trapezoidal screws. However, as the length of the trapezoidal screw increases, its rigidity and load-bearing capacity decrease. This is because long trapezoidal screws, when subjected to loads, have uneven stress distribution, which can lead to bending and deformation, thus reducing the screw's rigidity. Therefore, T4*1 trapezoidal screw manufacturers should choose the appropriate trapezoidal screw based on specific application and requirements. For longer transmission distances or heavier loads, consider T28*5 trapezoidal screws; opt for larger diameters but ensure the length is shorter based on actual conditions. Conversely, for shorter transmission distances or lighter loads, smaller diameter trapezoidal screws can be selected.

T28*5 Trapezoidal Screw - Jingde Trapezoidal Screw - Dibite Machinery, supplied by Suzhou Dibite Precision Machinery Co., Ltd. Located at No. 112, Wanping East Road, Wanping Town, Wujiang District, Suzhou City, Jiangsu Province. Striving and developing amidst the surge of the market economy, Dibite has earned a good reputation in hardware accessories. Dibite's nationwide coverage signifies that our service and management have reached a new level. All employees of Dibite are willing to work with individuals of insight to co-develop and create a brighter future.