If the left-handed and right-handed main bai of the lead screw is different in the running direction of the lead screw, because the dao running direction of the equipment is different, it needs to be requested, which leads to the need for the left-handed screw, but this type of screw is only used in Very special occasions, less dosage.

The so-called left-handed and right-handed screws represent the direction of rotation when the screw is moving. The function of the screw is to convert rotary motion into linear motion or vice versa, so the screw has a direction of rotation when it operates on the machine. In general, right-handed is the majority, left-handed is a small amount, right-handed is also called forward and left-handed is called reverse.

The letter before the number in the ball screw model is generally defined by the manufacturer. The purpose is to distinguish a variety of product series with different uses, such as inner loop, end plug type, outer loop, high lead, high Load, end plug type high load, end cap type, small bead diameter, standard type, etc. series, these letters are followed by the size, lead, precision and other parameters of the screw.

The product models of different companies have the same letters in front, but they may belong to different series of products. The letters in the front also represent the series of screw rods, but the specific meanings of different brands may be different. Some of them can be distinguished by other parts of the model. Generally, they represent the brand of the ball screw and its factory. Numbering!