1 --- Transmission efficiency. The transmission efficiency of the ball screw is about 90 ~ 96%, and the transmission efficiency of the trapezoidal screw is about 26 ~ 46%. That is to say, if the same large load is driven, the ball screw can use a smaller driving power, such as a motor with a lower power, which can reduce the cost and energy consumption. 2-- Transmission speed. The ball screw is rolling friction, and the trapezoidal screw is sliding friction. The temperature rise of the former during working is much lower than the latter, so it can undertake high-speed transmission tasks. 3 --- Service life. The surface damage of rolling friction is much smaller than that of sliding friction. Therefore, when the conditions of cleaning and lubrication are met, the maintenance life of the ball screw is much higher than that of the trapezoidal screw. 4 --- Self-locking. The self-locking property is generally inversely proportional to the transmission efficiency. Therefore, the ball screw has almost no self-locking property, and the trapezoidal screw has a certain self-locking property (depending on the lead angle and the roughness of the working surface). 5 --- Economy. From the previous and current situation, the ball screw is still more expensive than the trapezoidal screw due to its more complicated structure than the trapezoidal screw. However, with the increase in automation equipment and increased production, the price difference is getting smaller and smaller. Loveseats Electric Recliner Sofa There are different cover materials for loveseats Electric Recliner Sofa, you can choose the material you like. We have leather loveseats electric recliner sofa, fabric loveseats electric recliner sofa and PU loveseats electric recliner sofa. And you can have different functions for your loveseats electric recliner sofa. You can choose electric recliner sofa, power recliner, loud speaker, USB charging, LED light and cupholder, etc. Loveseats Electric Recliner Sofa,Power Recliner Sofa,Electric 2 Seater Recliner Sofa,Home Theater Loveseat Sofa Kaifeng Lanwei Smart Home Co., Ltd , https://www.sofas-world.com
Comparison of screw rods of tension machine
One of the accessories of the tension machine is the screw. The common screws on the market include ball screws and trapezoidal screws. The ball screw is rolling friction due to the ball, which is fast and high precision, but it is not suitable for places with heavy load! Spiral screw is also called trapezoidal screw, it is sliding friction, low efficiency, low accuracy, but good rigidity, used for heavy loads. The meshing clearance of the ball screw drive pair can be adjusted arbitrarily to achieve a more ideal fit accuracy, which is especially important for reducing commutation errors. It is difficult to adjust the fit clearance of ordinary threads. Below we compare the ball ratio rod and the trapezoidal screw from the following aspects.