When assembling a caster, you should first understand how to pre-load the spring and how to attach the caster with a side-mount or expanding stem. The spring must be pre-loaded for at least 250 pounds of force. Any additional force placed on the spring load casters will deflect the spring, reducing noise. Likewise, loads below the pre-load will have zero deflection.
Pre-load is applied to the spring.
The first step in properly setting up spring-loaded casters is determining the pre-load. The amount of force the springs will defy when the payload is placed on the caster. Choosing the right pre-load will reduce noise and vibrations while protecting the payload. If you don’t choose the correct pre-load, your casters will deflect and increase noise.
Depending on the spring type, pre-load can be a good way to determine the correct load and position. It will also tell you how much tension you need to apply to the caster. Normally, users will use the initial tension to keep the spring in place. The rest of the load will depend on the rate and how far the spring travels. However, consult a spring-load calculator for more information if you don’t know how much tension to apply to the springs.
Generally, springs function in an area similar to their theoretical deflection curve. The graph shows how springs will deflect for each pound of force applied. It is the sweet spot. It means that springs should deflect at a predictable rate over the entire length of the spring. However, no change in the deformation will occur unless additional pressure is applied. Unlike in a linear spring, the deflection of springs is highly predictable.
Spring-loaded casters come in two different types: side-mount and square-stem. Side-mount casters have a vertical mounting plate and are bolted or screwed onto the surface. A spring-loaded caster is designed to absorb shocks and offer a smooth ride, even on uneven surfaces. Typically, these casters are used in commercial and industrial settings. The work environment you’re doing will determine which type of caster is right for your needs.
Spring-loaded casters are best used on loads weighing less than 300 pounds. They reduce vibration, protect sensitive equipment and minimize noise during transport. In addition, their long swivel lead eliminates excessive shimmy when towing. Aside from handling heavier loads, spring-loaded casters are great for a variety of applications. For example, they are perfect for revolving signs, parade floats, and jet engines.
Expansion stems for spring-loaded casters are designed to fit into various tubing fixtures. A soft rubber bushing is screwed onto the stem and tightened using a hex nut. These casters are great for a wide range of uses, from work tables to prep tables, racks, and other shop projects. The stem expands to fit into the fixtures, and they are very easy to install.
Despite their low profile, these casters can start rolling easily. They feature two wheels to reduce the friction between the floor and the wheels. These casters can be used in many environments, including laundry rooms, restaurants, and government buildings. They also have a thread guard to keep debris out of the caster and prevent contamination. The low-profile design of these casters makes them ideal for low-ground equipment.
Installing lag screws is simple once you are the know-how. To install a lag screw, you first need to align the materials to be attached. You can use clamps to help you with this step. Next, drill a pilot hole in the area where the screw will be installed using a bit smaller diameter. Finally, ensure that the hole goes through the material where you want the screw to be installed.
Lag screws are the most common type of screw used to attach spring-loaded casters. These are strong, durable, and usually require a nut. They can support a higher load than a standard screw, so they’re the best choice for heavier loads. Lag screws are also available with different head sizes, so you can use a ratchet or nut driver to tighten them.