Left Hand Wound Spring

Lee spring stock torsion springs are offered with legs of.

Left hand wound spring. The wind of the torsion spring can be right hand left hand or double torsion. The easiest way to determine if a spring is left hand wound or right hand wound you have to look at in a specific way. If a spring screws onto a thread the direction of the helix should match that of the thread. Usually you will have two springs on your door which will be color coded.

Compression left hand wound compression right hand wound. Torsion springs are designed and wound to be actuated rotationally and to provide an angular return force. Common torsion spring uses include clothespins clipboards swing down tailgates and garage doors. The above drawing shows a left hand wound spring.

You can easily determine it from the end of the spring. The load should always be placed so that the spring is closing. If you are not able to find one of our stock items that matches your needs we can manufacture virtually any design. It is hard to tell the direction of winding from the front side.

On the other hand a left hand winding spring is wound in an anti clockwise direction and has its end of wire on the left side. Find various sizes and angles of deflection in right hand wound and left hand wound torsion springs with straight legs and ends at grainger. Alternatively if the cutoff torsion end is on the right hand side of the spring 3 o clock position then the spring is rhw. It is important to specify either right hand wound or left hand wound for torsion springs.

Pick up your spring and look into it. If it turns away from your fingers then you are looking at the left handed spring. If the cutoff torsion end is on the left hand side of the spring 9 o clock position then the spring is lhw. A left hand wound spring will spiral in the same direction as a left hand threaded screw.

The fingers should be placed on the outside of the body and your thumb should point upwards. In most cases you can determine the wind of your garage door torsion spring by using the color coded system on the cones at the end of the spring. For compression and extension springs. If the last coil of the spring points in the same direction of your fingers then you are looking at the right handed spring.

Most of the time the end on the right hand wind is red and the left and wind is black as you can see on the graphic below.