How do I know what size casters I need?
Generally, the greater the weight, the larger the wheel required for the caster. Larger wheels distribute weight and roll more easily over floor obstructions. To determine the load capacity for each caster, divide the combined weight of the equipment and maximum load by the number of casters to be used.
How do you measure for replacement caster wheels?
Place the ruler perpendicular to the length of the stem at the middle (not near the top or the ring). Most casters that have a grip ring stem have 7/16″ stem diameter. If the stem of your caster is 7/16″ diameter it will measure slightly less than the 1/2″ mark on the ruler.
Are casters standard size?
Caster Sizes Most office chairs tend to come standard with 2” to 2.5” wheels. While this is certainly an adequate size, there are some advantages to going with larger wheels and opting for at least a 3” wheel.
How is caster height measured?
#5 – Check the Overall Height of the Caster & Top Plate Finally, it’s time to measure the overall height of the entire caster assembly, from the very bottom of the wheel to the very top of the top plate. This is simple enough; just lie the caster on its side and take the measurement.
How are caster plates measured?
Measure the Top Plate of the Caster The top plate of a caster fastens it to the desired object. To get the size of the top plate, measure its overall length and width. Top plates are typically 2-⅜” x 3-⅝”, but they come in many sizes. Before getting a caster, measure the area where you will use it.
How is caster thread measured?
Threaded stems are sold by their thread diameter and the length.
- Use the adjustable wrench to measure the outside diameter of the threaded caster stem.
- With the wrench gently tightened down, use your ruler or tape measure to measure the between-jaw distance.
- Measuring the length is a little simpler.
Are all caster wheels the same?
Whilst they are typically 2-2.5 inches in size as standard, it is the style of the castor stem (the part which attaches the wheel to the chair leg) which determines whether the wheels will fit in other office chairs. That said, most office chair castors will use a grip ring style stem.
How do you measure the height of a caster?
Finally, it’s time to measure the overall height of the entire caster assembly, from the very bottom of the wheel to the very top of the top plate. This is simple enough; just lie the caster on its side and take the measurement. Again, write these numbers down and be sure they’re appropriately labeled.
How to check the size of a wheel?
#3 – Check the Wheel Size 1 Width – With the wheel upright as if it was attached to your cart or object, just measure from the outer edge of one… 2 Diameter – To measure diameter, lay the wheel flat on its side to start. Measure from one side of the wheel to the… More
How do you measure the swivel radius of a Castor?
To determine your swivel radius, lay the caster down on its side and measure from the center of the kingpin to the back edge of the wheel. A straight edge lying up against the face of the wheel will make it much easier for you to determine this measurement; the point where the tape measure meets the straight edge will determine your swivel radius.
What is a top plate used for on a caster?
The top plate is used to attach the caster to the object, whether that object is a cart, rack, or even a piece of furniture. Top plates are available in various sizes, so it’s important that you measure it properly to ensure that your replacement caster fits.