![A-Type Variable Spring Supports With A Load Capacity Of 596 Lb. A-Type Variable Spring Supports With A Load Capacity Of 596 Lb.](https://farm2.static.flickr.com/1212/4601897513_35a02c81ab_o.gif)
![A-Type Variable Spring Supports With A Load Capacity Of 596 Lb. A-Type Variable Spring Supports With A Load Capacity Of 596 Lb.](https://farm5.static.flickr.com/4087/5189535229_a460a05e76.jpg)
Fabricated from A-36 carbon steel, these PTP-4 A-Type variable spring supports measure 6 5/8″ OD x 19 9/16″ in length with an installed load of 596 lb. They have a spring rate of 56 lb/in., and a downward travel of 1.375″. These supports are designed to suspend from a rod that is threaded through the upper portion of the variable (see Fig. PTP-4). This particular design is generally used to keep the variable further away from the beam to avoid interference.
Want to learn more about variable springs? Instantly view a past variables webinar!