Constant Force Spring Spool

Constant force or clock springs constant force springs a constant force or clock spring is a roll of prestressed strip which exerts a nearly constant restraining force to resist uncoiling.

Constant force spring spool.

Hunter spring offers a great selection of spring powered cable reels with different mounting options. For starters the spring doesn t have to be mounted on a spool. 1 50 0 75 inch width. The other end of the spring is connected to a hub which is located on a plane different from the take up reel.

Establish the force the force of a constant force spring should be equal to the requirement of the application. These spring reels also known as cable retractors provide a fast and economical solution for applications where counterbalancing retrieving or returning functions are required. The force is constant because the change in the radius of curvature is constant this is true if the change in coil diameter due to buildup is disregarded. Mounting a constant force spring on a spool.

0 50 inch metallic for use with lead aluminum cable sheaths cable screening tapes wires steel aluminum. Hunter spring offer high quality flat springs such as constant force springs constant torque springs power springs prestressed power springs and more. Some constant force springs may implement a drum or spool which can move as part of the spring deflection while other constant force springs do not use a drum at all. Coil deflection fixed coil constant force springs have coils that do not travel with deflection.

Increased tolerances of the spring s diameter and force due to the low stress level and slight variances in material. A latch holds the spool with the spring adjacent to the supply reel. The full rated load of the spring is reached after being deflected to a length equal to 1 25 times its diameter. Posted by vulcan spring.

Constant force spring range. When using a spool diameter greater than the i d substitute the spool diameter in place of the i d. One of the most common questions about constant force springs concerns the mounting of the spring on a spool. If there is a leader on the front of the spring commonly called a pickup that length should also be included.

For more information on spools please see mounting a constant force spring on a spool. The pick up pin is attached to a spool that is connected to a constant force spring sometimes known as a negator spring.