|Global Product Type||Casters & Glides-Office Furniture Casters|
|Caster/Glide/Wheel||Grip Ring Stem Twin Wheel Casters|
|Weight Capacity (text)||110 lbs. Per Caster|
|Wheel Tread||Available in: Hard or Soft|
|Material(s)||Available in: Nylon or Polyurethane|
|For Use On||Available in: Carpet, Chair Mats or Hard Floors|
|Caster Quantity||5 per set|
|Stem Size (W x H)||7/16" x 1-3/8"|
|Caster/Wheel Size||Available in: 1 1/2" Caster or 2" Wheel|
|Wheel Type||Available in: Hard Twin Wheel or Soft Twin Wheel|
|Pre-Consumer Recycled Content Percent||0%|
|Post-Consumer Recycled Content Percent||0%|
|Total Recycled Content Percent||0%|
|Brand||Master Caster® (website)|
You don't need to know the exact length of your current stems to choose the replacements, nor remove the stem from the wheel. New stems should be the same length or shorter than your current set. However, you do need to match the diameters.
Based on the information provided, it sounds like you need 2" soft wheel casters with K stems. Soft wheel casters are the best choice for hard wood floors because they "give" and grip on hard surfaces. We offer a few options that should fit your needs:
Check out our chair caster guide for more information on choosing the best replacement casters for your chair.
Thank you for your question about Master Caster Duet Twin Wheels.
Unless you have an office chair by Steelcase, a manufacturer that welds the stems to base, your caster stems will come out. It's just going to take some force. Try using a pair pliers, or hammer and flathead screwdriver to pry them out.
If you do have a Steelcase Chair with welded casters stems, you can special order stemless casters. Just give us a call at 866-501-6055. However, if you currently have 7/16" C stems, they can be removed. Plus, the stemless casters won't fit. Stemless casters only fit 3/8" diameter stems up to 1-5/16" long. Use a string to carefully measure your current casters' diameter.
Hope this answers your question!
From your description, "K" stem soft wheel casters appear to be your best bet. However, I can not make this recommendation without reservation because of the unusual shape of your caster stems. I recommend contacting Tempur-Pedic® for more information, or emailing us a picture of one of your casters. We are happy to do all we can to find the right casters for your chair. Just be sure to include the diameter of the narrow part of the stem.
Master Caster® casters are sold in sets of four or five. The "K" stem Master Caster® Duet Twin Wheels are sold in sets of five. The listed prices are per set, not per wheel.