Supply screw ball screw bearings

there is a component in the machine by a long slender metal rods made. Above the surface is very smooth finish, and some even with thread.

Generally above have threaded the machine, called the screw.

1, in accordance with the national standard GB/T17587.3-1998 and its application, ball screw (now largely replaced by trapezoidal screw, lead screw has been commonly known) is used to rotary motion into linear motion; or linear motion into rotary actuator movement, and has transmission

High efficiency, positioning accuracy, etc.;

2, when the screw as an active body, the nut will screw with the rotation angle in accordance with the corresponding specifications of the lead into linear motion, passive piece and nut by nut seat connection in order to achieve the corresponding linear motion.

3, since there is no gap between the ball screw, linear motion when high accuracy, especially in the frequent need for the time gap to compensate. Little friction between the ball screw wire mother, moved with great ease.

4, the middle of ball screw and motor connection must be installed to achieve the flexible coupling connection. Synchronous belt wheel, you can directly connect with the motor output shaft.

5, ball screw according to national standards GB/T17587.3-1998, divided into the positioning of ball screw (P) and drive ball screw (T) into two categories. Accuracy class is divided into seven levels, namely 1.2 .3.4.5.7.10 level, a highest accuracy. by turns.

6, ball screw nut is rotated to move away from a pitch, if it is nut screw turns a mobile four (or five) spiral distance, then said that the screw is a four-lane (or five lines) screw, commonly known as four (or five) screws. General

Small lead ball screws are used single, medium, large or super lead or a two-wire line.