Understanding the Mechanics of Turnbuckles in Cable Rigging

When it comes to the task of lifting heavy materials and objects, you may immediately think of lifting mechanisms. However, these tools require support from other components, such as turnbuckles. Read on to understand the mechanics of turnbuckles in cable rigging and the types you can use.

What Does a Turnbuckle Do?

You may ask, “What does a turnbuckle do?” This metal device helps you adjust tension and get rid of slack in cables or ropes. Usually, it features two threaded end fittings that you screw into a body. These can come with hook, jaw, and eye ends.

How Does a Turnbuckle Work?

One of the keys to understanding the mechanics of turnbuckles in cable rigging is learning how they reduce and generate tension. After you attach the end fittings of the turnbuckle to a tensioning system, you will use a wrench or a plier to either apply tension or slacken the cable.

When turned clockwise, the turnbuckle generates tension on the cable. But when you turn the turnbuckle counterclockwise, it slackens the threaded rods, thus reducing the tension on the wire rope or cable.

What Are the Different Types of Turnbuckles?

There are multiple different types of turnbuckles that you can use. Their names vary based on the end fittings on the turnbuckle. For example, a “hook and hook” turnbuckle features hooks on both ends, while a “jaw and jaw” turnbuckle features a U-shaped jaw and bolt on both ends.

Some turnbuckles can have opposite end fittings, such as a “hook and eye” turnbuckle. Usually, you will use an eye to connect to a shackle, while you will use a jaw to link up to an eye. The hook end fitting is best when you need to make a temporary connection and won’t worry about it becoming disconnected and causing an accident.

In addition, when selecting and using turnbuckles, it’s essential to consider factors such as load limit, material and size of the cable, corrosion resistance, thread size and type, and tensile strength. You will help keep people safe on your site and better ensure no accidents occur by doing so.

If you are looking for a rigging supply store that can sell you quality turnbuckles, contact American Cable & Rigging Supply. Our quality products will allow you to apply tension or slack cables on your job sites effectively.