Constant Force Spring Spool

Hunter spring offers a great selection of spring powered cable reels with different mounting options.

Constant force spring spool.

Mounting a constant force spring on a spool. 1 50 0 75 inch width. Coil deflection fixed coil constant force springs have coils that do not travel with deflection. If there is a leader on the front of the spring commonly called a pickup that length should also be included.

A constant torque is obtained when the outer end of the spring is attached to another spool and caused to wind in either the reverse or same direction as it is originally wound. It can be placed in a cavity or on an undersized bushing or pin. The full rated load of the spring is reached after being deflected to a length equal to 1 25 times its diameter. For starters the spring doesn t have to be mounted on a spool.

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. Posted by vulcan spring. Establish the force the force of a constant force spring should be equal to the requirement of the application.

Standard tolerance for the force of a constant force spring is 10. Constant force spring range. 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. 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. The other end of the spring is connected to a hub which is located on a plane different from the take up reel. One of the most common questions about constant force springs concerns the mounting of the spring on a spool. When using a spool diameter greater than the i d substitute the spool diameter in place of the i d.

These spring reels also known as cable retractors provide a fast and economical solution for applications where counterbalancing retrieving or returning functions are required. 0 50 inch metallic for use with lead aluminum cable sheaths cable screening tapes wires steel aluminum.