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50mm Twin Soft Tyre Swivel Castors & 16mm Tower with choice of Stem Size or Fixing Plate

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£2.54 (inc VAT:) £2.12 (exc VAT:)
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Product Description

50mm Grey Soft Wheel Castor

The product listed is a 50mm diameter grey soft wheel castor with a 16mm tower. Towers are purely for cosmetic use and do not change anything on the castor except from the look of it. The castor takes a weight loading of 50KG. It is applicable with any of the stem options that can be seen in the images and on the drop down option. Ideal castor to use on things such as office chairs, tables and desks. 

gr5016h-specifications-diameter-pages.jpg    gr5016h-specifications-height-pages.jpg    gr5016h-specifications-tower-pages.jpg       gr5016h-specifications-tyre-width-pages.jpg              gr5016h-specifications-castorwidth-pages.jpg

 Diameter of Castor    Height of Castor       Tower         Thickness of Wheel   Total Width of Castor   


Frequently Asked Questions relating to this product:

Question: I need a 50mm castor that is able to be fixed to wood, would these be adequate?

Castors Unlimited Response: Yes, you can use our plate fixings to fix the castor to your wooden cabinet or pick a threaded stem and purchase our wooden inserts nuts to use in correspondence. 

Question: How do i know what stem to use? 

Castors Unlimited Response: In order to establish what stem you should order, you need to know two things, 1. the diameter of your current stem, 2. The remaining stem length that is left after the stem is pushed into the castor. After you know this information, its easy! You match up your measurements with our range of stem options and look for your match. 


Delivery Information:

Next Day Delivery: If you require your products on a next-day service, please ring us and check our stock levels of the products that you want to order. Any Next-Day deliveries must be ordered by 12 noon (mid-day). Any orders placed after that time slot may not be accounted for next-day delivery. Every order that is placed for a next-day delivery requires for a contact number to be put with the order so that if for any reason the courier cannot deliver they can call you. In a situation, where a delivery cannot take place the driver will leave a card providing details of where you can collect your undelivered parcel from. On some occasions we can even ship the same day! Get your orders in by 12pm Noon.

2nd Class: Royal Mail quote 2-3 working day delivery, including Saturdays. Please Note: *This is not a tracked service* If you require a tracked service that is not next-day delivery, please call us and we can arrange for this.

Air Mail – International Postage: Our prices are based on Royal Mail’s prices. We can ship anywhere outside of the UK.

Free Shipping: Where a product has free shipping listed on it, this applies to any deliveries in the UK. We cannot offer free shipping outside of the UK.




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Product Reviews

Showing reviews 1-10 of 29 | Next

  1. New lease of life 5 Star Review

    Posted by on 22nd Nov 2020

    I ordered 5 new castors because the castors on a swivel chair weren't turning. The replacements have given the chair a new lease of life. they are very smooth and quiet and won't damage the wooden floor. This is the second time I've used castorsunlimited and I would use them again if the need arose.

  2. 50mm Twin Soft Tyre Swivel Castors & 16mm Tower 5 Star Review

    Posted by on 28th Jun 2019

    Excellent service, quick delivery. Just what I wanted to protect my new LVT flooring. Wouldn't hesitate to use castorsunlimited again. *****

  3. excellent 5 Star Review

    Posted by on 23rd Apr 2018

    brilliant product for changing over the wheels from an ikea markus chair that couldn't wheel properly. Excellent delivery and customer service. Would definitely recommend.

  4. Easy website choice 5 Star Review

    Posted by on 30th Jun 2017

    The website gives guidance on measuring castor post size and castor diameter which is easy to understand and follow. The choice of castors is then very easy. Product arrived promptly. What more can you ask?

  5. Exceptional!! 5 Star Review

    Posted by on 16th Jan 2017

    Top quality product - exceptional customer service

  6. 50 mm soft tyre swivel castors 5 Star Review

    Posted by on 16th Oct 2016

    I bought 5 soft tyre swivel castors for a Kusch + co leather chair, a recent purchase from eBay, the service from castors unlimited was faultless as product arrived within 3 days of ordering and castors fit perfectly and are beautifully quiet on our wooden floor. Very reasonably priced too!

  7. Quality product at a reasonable price 5 Star Review

    Posted by on 8th Aug 2016

    Good quality product at a reasonable price.
    Fitted perfectly and teh website explantion's and diagrams helped me choose the right one's. Although not quite as soft as I thought they would be they are certainly softer and wider than the individual wheels on my original casters.

  8. These castors are perfect for hardwood floors 5 Star Review

    Posted by on 26th Jul 2016

    I wanted these castors for a wooden home-made pot stand for a large heavy pot.
    They are perfect for the job. Four, soft, twin wheels means eight points of contact and no marks on the wooden flooring.

  9. Fantastic customer support 5 Star Review

    Posted by on 24th Feb 2016

    I needed 16 but my project needed 8mm dia. stems and I had no choice but to purchase the 10mm dia. version. I'm having them turned down to fit and I'm sure that combined with the castors that look and feel excellent, the project will be completed to my satisfaction. The key to my satisfaction is that Natalie helped a great deal and I have to thank her for her professionalism and customer focus.

  10. Best value online. 5 Star Review

    Posted by on 15th Dec 2015

    These are the first castors I've reviewed, so can only compare them with prices and delivery costs of others online, and the inferior ones they replaced.
    The choice of sizes was very convenient, and provided the best value then available online. Fitting was carried out very easily by hand. My chair now moves smoothly and easily.

Showing reviews 1-10 of 29 | Next


Perfect fit for my needs. As a returning customer, I was more than happy and pleased with the service from Mr Rob Scott and his very helpful and professional staff. I having bad to negative to say about any of my purchases from Castors Unlimited, or the people I have had the pleasure, of speaking to and getting the knowledge, and insight to my needs. Just keep up the great job by doing what you do the best job for your customers. Anthony J Kimber
------------------------------------- Everything perfect thanks, quick delivery, great items that sorted my office chair problem and excellent communication. Top stuff. Kingsley.
------------------------------------- Great value - it's transformed a tired office chair and we can whizz around in it now !! Sandra.
------------------------------------- Good product, good price, quick delivery. Many thanks.
------------------------------------- Thanks for a fast simple transaction, the way it should be!
------------------------------------- I am very very happy with my purchase EXCELLENT SERVICE, pleasure to deal with. Matt
------------------------------------- Excellent service and product. Most certainly buy again! Recommended!! Jo.
------------------------------------- The castor was perfect for our needs, to replace a broken one and use an existing stem which couldn't be removed. So many castors nowadays come with a stem which can't be removed. Customer services and delivery were flawless. We'll use this company again, well done to them. Adriana Williams
------------------------------------- As a domestic customer, it was quite a work-up trying to find replacement domed inserts for our dining chairs. Like so much furniture these days, our chair were made in China. Great design, but trying to get replacement feet was proving a nightmare. After much searching on the web, thankfully we found 'castors unlimited'. They were very helpful. Cannot recommend highly enough. Oh, the product, Good quality,made in Britain. What more could we ask for! John.
------------------------------------- Small problem with packaging, (may have been caused by Royal Mail handling). Contacted Castors Unlimited, resolved, replacement missing part received and fitted all within 24 hours. Well done Natalie and team. These were for IKEA Markus chair, perfect fit and much smoother action. Mr Donovan
------------------------------------- I purchased M10 adjustable glides. The service and price where both excellant. Regards. John Pears Rollaco Presses.
------------------------------------- I just wanted to let you know I am really pleased with the product, price and speed of service from you. E-mail notifications were really good as well. I do a lot of purchasing for work and I'm used to companies not doing what they say they will so it was really nice to have an efficient service from yourselves. Keep up the good work! - Thanks a lot, Reece Gale
------------------------------------- Several companies seemed to be viable contenders to supply what I needed, but Castors Unlimited had by far the most impressive website. So I just measured my broken castor and filled in the online form - two days later my problem was solved. I actually bought two because I never know if anopther castor might collapse (the chair is about ten years old!) and they are so inexpensive that it seemed silly not to.
------------------------------------- At Ocean Life Aquatics we use Castors Unlimited to supply products as part of our bespoke aquarium installations. Their products are of excellent quality and competitively priced. Customer service is second to none, especially when we require items the next day! Mark Robinson - Proprietor - www.oceanlifeaquatics.net
------------------------------------- Your company is one of those bright spots in the life of a busy facilities manager. You stock everything that can be found on the end of a piece of furniture, and your service is helpful and speedy (and competitively priced). What’s not to like? Sue McFadyen - Estates Co-Ordinator - The Sixth Form College Solihull
------------------------------------- Happy New year and my apologies for taking so long to get back to you. With regards to both your service and the product that I ordered for the school, I would like to say I was very impressed with your assistance in getting the right item. No doubt I will be in contact with you as and when we need more items! Many thanks Ian Betts, Blessed William Howard Catholic High School.
------------------------------------- Castors Unlimited are certainly competitive, I have had a good Google around, but price isn't everything as service is very important too. Whilst one is able to see prices online there is little indication on how good the service may be. CU have proven on both counts so I have little intention of going anywhere else. Thank you for that. - Andy Young
------------------------------------- Many thanks again for your help and the amazing service. It has been a pleasurable experience – if only all online shipping could be this painless!! Kind regards. Graham Laird. 31.10.13
------------------------------------- The service provided in buying this product and the after sales service in rectifying one particular issue was brilliant. It was excellent customer service combined with very good delivery service. Now, I don't hear the scratch of the old wheels on the wood floor - smooth and silent! Posted By Stephen Coates 30/10/2013
------------------------------------- Fantastic company - Rated 5 out of 5 stars by reviewer Product: 50mm Twin Hard Wheel Swivel Castors & 36mm Tower with choice of Stem Feedback: From the minute I spoke with a young lady on sale I found 110 percent service and quality and fantastic value.. it was a joy to see 'old fashioned' values are still around well done castorsunlimited I wish you all a great future. Thank you, the products were perfect, great value and delivered at speed... regards Mike Ford
As a result of a broken castor on my office chair, I was told to speak to these people. Very helpful and knowledgeable staff, who helped me with the size and type of castor required, which can be tricky. Product delivered within a couple of days of order and my office chair is as good as new and at a fraction of the cost of buying a new one. Thanks!Posted By: Roger.
"wheelie" good casters by Martin (Southgate N14) on 22nd Jun 2013 Good quality replacements for my 'home' office chair at what I regard as modest prices. The advice received as to the exact product was spot on and delivery very prompt. Well done!
Just a quick note of thanks for your help and service given. I was so surprised this morning to have the order delivered, that must have been the fastest delivery I have known less than 24hrs from time of phoning you. Thank you once again. kind regards

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