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How do rotating screw jack and translating screw jack work?
According to movement type, the worm gear screw jack can be classified to translating screw jack and rotating screw jack. Then how do these two types of screw jacks work?Let’s see the followings. ---Translating screw jack The rotation of the worm shaft causes the worm gear to rotate. For translating screw jacks the worm gear is threaded to accommodate the lead screw thread. As the worm gear turns,...
Dec 05 , 2017 view more
Difference between screw pitch and lead
The screw can be of single start,double starts or multiple starts.The multiple-start worm gear screw jack is widely used in application which requires higher speed. Then how about the difference between the screw pitch and lead in multiple-start screw? Let’s see the following information. Pitch Pitch is the distance between screw grooves and is commonly used with inch sized products and spec...
Nov 28 , 2017 view more
Linear Actuator ---Worm screw jacks' upgrading product
Linear actuator is a kind of product upgraded from worm gear screw jack. It has special metal shell which can move along with the screw. It is more durable and easy to be maintained and has higher precision. This product can be divided into ordinary teeth screw electric push rod (working system is 30%) and ball screw electric push rod (working system 100%) Electric push rod drive can be optional D...
Nov 08 , 2017 view more
Upright Rotating Ball Worm Screw Jack Features
Upright Rotating Ball Screw Jacks - 1 Ton to 100 Ton An upright rotating ball screw jack has a lift shaft that moves a nut as it turns. The lift shaft is fixed to the worm gear. This causes the load, which is attached to the travel nut, to move along the lift shaft. Upright rotating screw jacks have the lift shaft extending out the top of the jack. Depending on size, upright rotating ball worm scr...
Nov 03 , 2017 view more
Enclosed Single Axis Slewing drives used for Aerial Work Platform Truck
Aerial work platform is a very important apply domain for slewing drive, usually it is very necessary of higher safety coefficient for main engines of all the aerial work carriages. The security of slewing drive is a key factor for most customers to choose it as the component of aerial work carriage; on the other hand, the worm gear and endless screw has larger speed ratio, which improve the secur...
Oct 27 , 2017 view more
How to add anti-rotation device?
Where the worm gear lifting screw jack's application calls for the rotation of the Lifting Screw to remain fixed,there are two method available to add the anti-rotation device. 1. Keyed-Keyway A channel is created along the length of the Trapezoidal Lifting Screw. A key is fixed to the main body of the Jack. As the Lifting Screw passes through the Screw Jack, the Key prevents any rotation. Applica...
Oct 16 , 2017 view more

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