If you need to replace a chair caster or any light duty caster with a stem, we need to know the measurements of your existing stem. This is probably the most important step in replacing a caster, and we will need to know this information before we can place your order. To view "How to Replace Stem Caster" video in full-size click expand icon or click the YouTube button at the bottom of the video window. Let Us Help You! If for any reason you do not want to go through the process of measuring and getting the specs of your existing caster... that is okay, we can measure it for you. Just send us one of your existing casters with contact information to: Attn: Home & Office Casters 9 South First Avenue West Reading, PA 19611 See what Service Caster customers are saying: Measuring a Grip Ring Stem Grip ring stems are one of the most common connection types for office chairs. For the most accurate results a micrometer or caliper should be used to measure the diameter of the stem, but below we will demonstrate some ways to get the measurements using common household items.

We recommend using at least 2 of the methods described below to ensure accuracy. Measuring with a Wrench To measure a Grip Ring stem with a wrench, simply gather both a 7/16" and 3/8" wrench. walnut dining chairs upholsteredPlace the open end of the wrench around the stem, as shown to the right.wheelchair for dogs canada Whichever wrench fits almost perfectly will be the size of your stem.bar table and chairs walmart Note: A tiny bit of wiggle room or "play" is to be expected when using the wrench method. used wheelchairs vans for saleThe 3/8" wrench will never fit on a 7/16" stem, and a 7/16" wrench will be very loose on a 3/8" stem.where to buy chair covers in calgary

Measuring with a Printout This printout page can help you determine the size of your grip ring. Simply open the link, and print the page. Then, place your stem over the images that most closely resemble your stem. vintage barber chair valueWhichever one is a perfect match is your stem.where can i buy wheelchair ramps Click Here for Printoutcheap recliner gaming chair For this method of measurement, simply take a small strip of paper and wrap it around the stem. chair seat pads ikeaMark the paper with a pen or pencil where it overlaps, careful to keep the wrap tight. Then measure the strip from the start of the wrap to the mark. If the ruler measures 1-3/16", you have a 3/8" diameter stem.

If the ruler measures 1-3/8", you have 7/16" diameter stem. Measuring a Grip Neck Stem Grip neck stems are most commonly used in wooden or metal tube furniture in conjunction with a socket. In most cases, if you measure the length of the stem and it is 1.5" long, you have a 5/16" diameter stem. If you are confident that is not what your stem measures, please measure it (or have it measured) precisely with a caliper or micrometer for length and diameter so we can find a match. Measuring a Threaded Stem Threaded stems require very specific measuring tools in order to find the correct diameter and thread pitch. Because of the many sizes and variations (metric, standard) the only way to be 100% confident of the measurement is to use a thread gauge. Pictured below is a thread gauge and threaded stem. If you don't have your own thread gauge, most hardware stores will be able to help you. Also, remember that we can measure your caster stem for you if you send it to us!

(See top of page.)Office Chair Parts Arm rest pads Gas cylinders & lifts File Keys & Lock Cores Custom Cut Bars & Rails Problem Solver has been family-owned and operated for over 60 years and has been the leader in office furniture parts. Task Chair Other Office Chairs Select for comparison Office Chair Other Office Chairs Select for comparison Office Chair Available in 4 colors Office Chairs Select for comparison Computer Chair Other Office Chairs Select for comparison Youth Desk Chair Cappuccino Phoenix Select for comparison Office Stool Other Office Chairs Select for comparison Side Chair Other Office Chairs Select for comparison Office Chair Other Office Chairs Select for comparison An office chair that can swivel and be adjusted to various heights and angles An b, or b, is a type of chair that is designed for use at a desk in an office. It is usually a swivel chair, with a set of wheels for mobility and adjustable height.

Modern office chairs typically use a single, distinctive load bearing leg (often called a gas lift), which is positioned underneath the chair seat. Near the floor this leg spreads out into several smaller feet, which are often wheeled and called castors. Office chairs were developed around the mid-19th century as more workers spent their shifts sitting at a desk, leading to the adoption of several features not found on other chairs. One of the earliest known innovators to have created the modern office chair was naturalist Charles Darwin, who put wheels on the chair in his study so he could get to his specimens more quickly. With the advent of rail transport in the mid-19th century, businesses began to expand beyond the traditional model of a family business with little emphasis on administration. Additional administrative staff was required to keep up with orders, bookkeeping, and correspondence as businesses expanded their service areas. While office work was expanding, an awareness of office environments, technology, and equipment became part of the cultural focus on increasing productivity.

This awareness gave rise to chairs designed specifically for these new administrative employees: office chairs. This caught the attention of Otto von Bismarck, who is credited with popularizing the office chair by distributing them throughout parliament during his time in office. American inventor Thomas E. Warren (b. 1808), designed the Centripetal Spring Armchair in 1849 which was produced by the American Chair Company in Troy, New York. [2] It was first presented at the 1851 Great Exhibition in London. The office chair was strategically designed to increase the productivity of clerical employees by making it possible for them to remain sitting at their desks for long periods of time. A swiveling chair with casters allowed employees to remain sitting and yet reach a number of locations within their work area, eliminating the time and energy expended in standing. The wooden saddle seat was designed to fit and support the body of a sitting employee, and the slatted back and armrests provided additional support to increase the employee’s comfort.

Like modern chairs, many of these models were somewhat adjustable to provide the maximum comfort and thus the maximum working time. There are multiple kinds of office chairs designed to suit different needs. The most basic is the task chair, which typically does not offer lumbar support or a headrest. These chairs generally cannot be sat in for more than a couple hours at a time without becoming uncomfortable, though they often offer more room to move than higher-end chairs. Mid-back chairs offer fuller back support, and with the right ergonomic design, can be sat in for a four hours at a time or longer. High-end chairs in this category, such as the Herman Miller Aeron, are comfortable for long periods. Executive or full-back chairs offer full back and head support. Many executive chairs are designed to be sat in for eight or more hours at a time. These are typically the most expensive office chairs. The Aeron by Herman Miller. In the 1970s, ergonomics became an important design consideration.