Rollerblade office caster wheels – buyer beware!

We purchased a set of Rollerblade office caster wheels.

We picked up a set of these office caster wheels that essentially have Rollerblade wheels on the bottom of them. Why do you ask?

Read on if you want to know more!

Exploded Diagram of the rollerblade office chair wheel caster.

Initially, we wanted skateboard wheels for the bottom of our chairs to maintain the aesthetic however they do not exist unless we make them ourselves. Rollerblade wheels were the next best thing. Since Rollerblade wheels have a low Shore A rating of around 75A it meant that the polyurethane is soft and thus will not make any noise on hardwood floors. In less than a month of having these, we ran into some problems! But don’t worry, this story does have a happy end!

Online reviews.

Cannot submit review to amazon. For some reason, we can’t post a review on any of the major online outlets unless we give them money to become a “special member” or spend a few hundred dollars. We’re going to perform the review right here because that’s what a blog does. On top of that since my review will have its own dedicated page it won’t be buried underneath a tidal wave of fake reviews which is the great scam that amazon sellers tend to do even if a product is defective. The picture above is essentially the package that we got in the mail. The “Texas Real Rollers” with its lifetime warranty. It all looks official except there is one problem that we found out after one of our wheels broke.

There is no such company as “Texas Real Rollers!”

Go ahead and slam that name into your favorite search engine! Use quotes even! There is no such company by the name of “Texas Real Rollers”. In fact, the first hits you’ll find is yet-even more Amazon links. Which if you follow those you begin to realize that suddenly there’s a bunch of other companies that appear to make the same identical office chair!


Competition must be stiff out there. Here are some of the names and aliases we were able to find for these casters at the time of posting. Please note that so long as it’s easy to print in cardboard there will be “New Companies” popping up all the time.:

  • Texas real rollers
  • Office owl
  • Office addiction
  • Airkoul
  • Clever casters
  • SunnieDog – According to some of the commenters, this is a legit American business out of Flordia. However, it seems that they are re-packaging a Chinese product under their name. Naughty!
  • Seddox
  • MVPower
  • Cusfull
  • 44th floor
  • AGPtEK
  • Optico
  • Slipstick
  • MySit IKEA Chair (Seriously think IKEA should sue them for using their name.)
  • OuYi Office Chair
  • Splaker
  • DGQ Office Chair
  • Amzdeal
  • The Office Oasis
  • ALLGREEN Products (This is probably the most insulting name out of them all.)

Sadly, none of these companies are real despite the boxes and the claims of a lifetime warranty. Because you see, a lifetime warranty can only be upheld if the company which made you the product was alive to even start with. These are all fraudulent Chinese companies etching different names and different graphic boxes for the same product to give this grand illusion of competition. Only to turn around and sell it at a higher price-point in this bizarre state of a completely false competitive market. We’re not even sure if there was an original company that came up with the Rollerblade office chair caster. If there was feel free to leave it in the comments below!

The problem with the Rollerblade office wheel.

Office Rollerblade caster stem broke off. When we first installed these new casters onto our chair less than a month ago they were perfectly fine. However, because the wheel-base of a Rollerblade was a little thinner when you pushed away from your office desk. Sometimes it may have needed a little more force than a normal caster because the wheels would sort of lock themselves in a particular direction. It just meant you had to push a little harder away from the desk, not a big deal.

Two broke in less than a month’s time on carpeted flooring.

Rollerblade office chair caster failer. After day 24 not one of them broke but two. The failure point being around the thrust bearing assembly. Also, because the people that assembled these casters were pure assholes. The bolts which hold the polyurethane wheels are riveted into the frame. Preventing you from removing the wheel and into another fork unless you bust out the carbide rotary tool set to cut the bolts away. People have also complained about the forks themselves bending from fatigue and slamming into the polyurethane wheel making a particular wheel act like a sudden break as you’re rolling. However we never even got to that stage of displeasure in the life of these office caster wheels.

A mess and a disgrace.

Rollerblade office chair caster thrust bearing failure. So here we are with the metal sheered away from the thrust bearing spilling out all over your carpeted floor for your cat “Skittles” to run over. Eating them up and probably die from. Maybe even to have one of those lucky bearings get all up into your vacuum cleaner and destroy everything inside!

We should also note that this isn’t even a properly designed thrust bearing!

These clueless assholes which manufactured this decided they were going to powder-coat paint all over the raceways and say to hell with mechanical tolerance. You’ll notice the groves where the bearings ride alone are rough because it’s not the right metal to use for a proper raceway. The balls were simply eating away the paint and eventually the inside metal before having enough slop inside to break free spilling everywhere!

The fraud about weight distribution.

You will see a lot of these ads saying that these office casters can hold up to 500-600lbs before breaking. Well, we’re less than half of that weight and we’re here to report that calculation must be based only on the Rollerblade wheel or perhaps if said person was sitting perfectly still not rolling around at all. These are the products we despise. A product that you cannot service or get parts for. Ultimately forcing the end-user to buy even more. until the customer has bought mountains of garbage which cannot be fixed with conventional tools. Essentially, China boasted their numbers similar to how they boasted their DDR Hard-pads.

Alternatives for a better Rollerblade office wheel.

This wouldn’t be a respectable blog site if we didn’t offer any solutions for the hellish landscape of this product. Since we purchased these from an eBay vendor we will be getting a refund back on these. Thankfully it was all under 30 days so no drama from the vendor. Will we go back to the shit plastic office casters? Probably not! And here is why.

From an engineering standpoint, it all makes sense.

uniq rollerwheel office caster. Because there is one company out there which decided to use a dual-ball-bearing (looks like 608 series bearings) set up within the stem of their casters to accept both radial (when a user forces the office chair load from the sides pushing away from their desk.) As well as thrust (when a user sits down in the chair.) To me, this makes sense, especially on carpets. Although ball-bearings are just Okay at handling thrust loads they are great are handling radial loads. Since the wheel is offset that means the bearing is accepting both thrust and radial loads. Like a skateboard; Putting two bearings in can compensate and distribute any thrust load easily enough. These were a little more expensive than the Texas Rollers we purchased. But we’re hoping that we get what we are paying for on this!

Customer reviews – Networking 101.

uniq rollerblade wheel caster box and postcard. Like the last set we got, it came with a box. But also a postcard that each header reads as follows:

We want you to be completely satisfied. Reviews are the LIFEBLOOD of our business! – UNIQ

Coming from a company where the box points to a website of and a postcard referencing… Both of which resolve to a default website. We would like to think the lifeblood of a business is to actually have a legit website where people can get more information about your product. I’m no power-hungry Hong Kong business executive! So, we could be dead wrong on this! Anyways, it’s a little hard to give glowing reviews when there’s nothing to really refer to.

Confirmation that the stems in these wheel casters are indeed ball-bearing based.

uniq bearing confirmation. Once we got the wheels in our mailbox we inspected them and sure enough, that is a legit ball-bearing in the stem of my caster. Excellent.

Plastic covers popping off in less than 24 hours.

plastic caps falling out of the wheels instantly. Within seconds of installing my wheels and rolling into the room. I was finding these plastic caps all over the place. Great, another thing for my wonder-cat “Tabby” to die from. No need to ask what happened to “Skiddles”  He’s in a better place. Also, these caps are great choking hazards for babies so thanks for that as well! You guys are amazing!

It’s better just to take a screwdriver and pop them all off to avoid any further mess. These new sets of wheels differ vastly from the Texas Rollers in respects that since the stem is perfectly straight I’m not using any force to push away from my desk anymore which is fantastic.

Wooden chair sockets versus steel sockets.

Many office chairs that you have seen on the market are typically loaded with steel sockets encased in a plastic leg housing. But it wasn’t always this way. Older office chairs especially coming from the 1970s and earlier may have a wooden socket which all that means is they drilled a hole into the wooden leg. Inserted the caster with no reinforcement! All Rollerblade caster wheels actually have a much higher load offset than the wheels from the 1970s. As a result, these styles of wheels could crack the wooden socket from the torque and you may have to retrofit your wooden chair with a steel socket in order to use these styles of wheels.

Stem measurements.

Different Stem Sizes Matter.

While some may consider this a bizarre question to ask. China has never failed us when it comes to failing to measure the most basic structural parts of a chair in the interest of shaving a half-a-penny off of a product. And the size of the stems for the wheels is an important factor. If for some reason china reduced the overall diameter of the stem or worse yet shorted you the consumer on the length of the stem. Damage could occur to the base of your chair as a result. So if you want to trust our Mitutoyo CD-6″-CSX calipers lets take a look.

Grip ring stem diameter

Alright, the average size hole of an office chair base is around 11mm in size.. the base will of course measure slightly smaller to accommodate the user pushing it into the base of their chair. Like our previous office chair stems this is a “Grip Ring” stem which what that means is there’s a section in the middle where a C-Clipped ring floats inside to lock the caster inside of the base of the chair.

Our Measurements indicate the stem is 10.87mm Which means that it gives less than 0.1mm of play to push this caster in which is acceptable.

Measuring the stem of the caster wheel from base to tip.

Measuring the stem from its base where the metal resides to the tip which has a 2mm taper you’re looking at around 21.85mm. This normally isn’t how people measure these. Most will measure from the base of the roller bearing plastic on up. So in this regard, the Uniq gives you a true stem, unlike most manufacturers which lie by adding the metal base into the total measurement.

Grip stem ring width.

Finally, we measured the spacing which can be important as if the space is too wide the ringlet may fall off or not even lock into the base. To which we found it at 2.35mm. which average is 2.5.

This just means the c-clamp ring will not wiggle around as much as a traditional caster. and may produce some stiffness if you moved it around by the head itself. However, with the ball-bearings in place that shouldn’t matter.

Uniq Damage Report! – 07/13/2020

Just one month shy of two years and I have some damage to report! When I was rolling around i was feeling my chair fight me in the same way the Texas Rollers were. Where I had to use a lot of force to make the chair push away from the desk. So, we decided to investigate.

Bent chair stems - uniq wheels damage report.

Getting past the fact that we should probably take these wheels off once a while and clean these bad boys. This is no optical illusion. It appears that our mass from typing all of these blogs has managed to bend the steel stems of these wheels so good that the screw inside that holds the 608 bearings is also bent making it virtually impossible to remove from the assembly without destroying everything. The bend in the steel is actually somewhere past the base stem which is designed to keep the chair stable at its base.

Something to note: This only happened to one of my wheels. Indicating that because of the heavy carpet that these wheels rest upon that they don’t move around a whole lot. Perhaps if we had hard flooring where they could roll around free then this would probably be not that big of a concern. Also, Since it only happened to one wheel we have to look at our own habits of office chair fuckery. Perhaps we were putting all of the weight on two of the legs instead of sitting nicely in it.

Am I going to freak out on Uniq and get mad like an amazon buyer? Not really because we feel we did abuse them. which means I’ll probably buy another set and keep the old wheels around and when we get some more bent stems we can start replacing them.

Uniq Death – 10/4/2020

Uniq office wheel death.

Well! As stated in the previous paragraph. All of the warning signs were there and we choose to ignore them. Eventually, the metal bolt that goes through the bearing sheered straight off resulting in the chair suddenly breaking for the last time we sat down in it. So for those who are experiencing any sign of the stem itself bending. Replace it so that injury does not occur to you! Or better yet! grind out the rivet holding the wheels and place your own bolts in so you can service your chair.

Uniq - Caster Death.

To point where the metal sheered is luckily on the bolt and not on the caster. Which is good news as we could throw this into a clamp and try to tap out the screw that is inside.

Uniq - Caster Death.

Of course, that would also mean removing the rivet on the wheels to remove the screw-head that is still stuck inside of the assembly. Because the bolt itself was bent the top of the caster was digging into the shield of the 608 bearings inside. Hey! There is a bright side! The balls did not fall out! Meaning that our next cat Sparkles is now safe! Phew! One of the three cats is still alive! Progress!

Now, looking out at 2020 as to what is available on the net. It seems that Uniq does not make wheels anymore. Which means we may be forced to our own devices to repair these for years to come. I may have to make a separate blog article when it comes to repairing the Uniq wheels over simple replacement.

Manufacturing processes.

Perhaps Uniq or another chair company is reading this entry and wants to know how to correct this issue. In case you get multiple people “clown car” an office chair maxing out that 600-800lbs load the wheels will be the least of anyone’s concern. What? Don’t judge! Office environments can get stupid quick!

  • I suppose one thing that could have been done is extend out the machine washer further. That way, when it connects to the base it can even take the load of the chair instead of relying all of the weight to be on the stem itself.
  • Another thing is to change the quality of the sheet bolts to something more of a tool grade steel instead of whatever rando brand of steel we have now. Something more Ridgid that will not bend under the stress.
  • Finally. Since we’re not caring about the chair height. bringing the wheels towards the center of the stem would reduce the said level of stress that is thrown onto the stem. There’s no doubt the wheels are farther away from the stem then standard plastic wheels. Time to bring the center of gravity a little more into check.


Final thoughts.

This will probably not be the end of this blog and will update it if anything changes. However, I would like to propose an open letter:

Dear Chinese manufacturers,

If you’re going to commit theft of intellectual property. At least do it right and have it last for at least a few months. There is a market for a better office chair wheel. Can we please not fuck it up for everyone? How about starting with assembling a proper thrust bearing instead of smashing two pieces of low-grade steel with a few balls telling us this is your definition of “High Quality?” When you do make said quality product actually release a REAL company name that everyone knows is legit and will buy even more of. People will pay more for a quality product. There’s plenty of offices around the world who would like better wheels so you aren’t going to run out of customers anytime soon.

Dear American manufacturers,

What are you doing?!?!? people are paying good money for these sets of wheels and you are nowhere to be found! This is an opportunity to get in the door and state that you are the official Rollerblade caster company. Since obviously no one wants to lay claim to that title.

Update notes:

For those interested we will periodically update this blog with a progress report. When you do a review of something you kind of want to keep going just so people can understand the progress of something that we found was really good like the Uniq Wheels.

As of 02/10/2019 – The Uniq wheels are still going strong and keeping our fat asses from hitting the ground! Still zero play in the bearings and no warp in the forks of the wheels. So to those ends, we consider it a “Mission Success.” Uniq’s are more expensive than any of the alternatives. But worth it.

As of 07/25/2019 – The Uniq wheels are still going and behaving just as when I installed them. Although the chair itself is disintegrating after 7 years of service and will be purchasing a new chair soon. I’ll be sure to pop off the Uniq’s and transfer them over to my new chair when they arrive.

As of 01/20/2020 – As we approach a year and a half of service. The rest of my leather office chair is deteriorating but the Uniq Caster wheels are still operating as they did when i first placed them in. This may be the first time I’ll remove the casters and transfer them to a new office chair.

As of 07/13/2020 – DAMAGE Report! One of the casters is now bent!

As of 10/04/2020 – DEATH of one caster. Total life without serviceable intervention = 2 years 2 months 9 days.


With the death of the first set of Uniq’s fresh in my mind. 2 years of life is hella short. But does that mean the Uniq wheels are bad? Not overly! Because we do think that we abused them in some way. After all, why is it only one of the wheels is bent and eventually destroyed whilst the other 4 are perfectly fine? Thankfully, we had another set of Uniq’s in which case we shall put the four wheels aside and install the next set and kept them on standby in case we destroy any more chair stems.

The alternatives.

If Uniq wheels are no longer a viable option. What’s the next caster wheels you would choose?

ATOMDOC office chair casters.


I would like to thank one of our readers “Dallas” for pointing us to these office casters. The first set of wheels I would try outside of Uniq’s are ATOMDOC wheels. These wheels go back to a more traditional caster system with a stem that goes right into the plastic core instead of a thrust or ball bearing system like others. That is my only worry about these wheels is the stem itself.

ATOMDOC wheel breakdown.

That the stem will survive unlike Uniq’s but will the base plastics hold? Only time will tell! It has the software plastic wheels to not screw up your flooring. With a 50mm wheel diameter versus the 70mm’s on Uniq the center of gravity for these will be lower and as a result, will probably not put as much stress on the legs of your chair as they pivot around. Finally, not entirely sure how serviceable ATOMDOCs wheels are. Can we remove the truck holding the two wheels together? What about that stem? Only one way to find out which is for us to buy them. To be continued on that one!

Another ATOMDOC wheel type has appeared!

Atomdoc - 3 Inch rollerblade wheel.

It appears that ATOMDOC has effectively made a wheel that’s identical to Uniq. Not entirely sure how those copyright laws over there operate but hey! As the Uniq wheels get harder and harder to get at least there’s an alternative. Honestly, If we could not get Uniq’s anymore this is the wheel we would be getting. The fork system is Nylon based just like Uniq’s, the bearing setup is the same. The only thing we are hoping they do better with is using better metal for the stem so they do not break like ours. Also, they riveted the wheels onto the forks which Uniq did the same thing. Which is a little on the bullshit side. Even though ALL of them are doing the same thing it’s still no excuse. We cannot speak for everyone on this however we would very much like to change out our own wheels and bearings.

Moving past ATOMDOC.


Stealtho Roller Wheel Chair.

I’d like to thank one of our readers “Ron J” for both correcting some of our terminology on bearings and also pointing to us a new product that went through kick starter and also unlike Uniq actually has a website and support. My heart almost stopped when I had seen they actually had legit support.

Unlike Uniq, nor Stealtho’s site or their Amazon Store does not really go into a nice breakdown of what sets their chair apart from the Chinese knockoffs. Except that we do hope they don’t powder coat paint the inner rails of their thrust bearing raceways like what we experienced from Texas Rollers.

Final thoughts: The aftermath.

We don’t hate thrust bearings as that style of bearing is actually designed for chairs. As in their very name, They are excellent at “thrust” loads. That is you sitting down in your chair. However, they are only “Okay” at radial loads (I.E. you moving around your office or carpet with them. Perhaps we got burned by those Texas Rollers to really trust a chair company to reliably build thrust-bearings!

Now, Stealtho’s do have one thing going for them that my Uniq’s do not. Which is the brake mechanism. On a heavily carpeted floor brakes don’t matter. But if you get roller wheels on floors like wood or concrete you don’t want your chair flying all over the place as you work! Unless you’re a psycho like us and wish we could remove the truck/connecting rivets and install some Swiss Bones ceramics loaded with Tri-flow because we want to fly across a 90×90 foot warehouse in one push.

Speaking of. There’s no indication if these casters connecting rod or “Truck” are riveted like the Uniq’s. ABEC 9 bearings are awesome but from all of the dust and debris in a building, they’ll get gummed up and will need servicing over the course of many years. We think of things like this because casters are one of those components you can transfer from chair to chair and should last for 25-30 years easily. Long term usage is what being environmentally friendly is all about.

How serviceable is Shealtho’s? Again, like the ATOMDOC there’s only one way to find out which is to just buy them!

But these are my two suggestions if we were to go beyond Uniq’s and onto something else. When we do get either of these brands we’ll be sure to start a new blog and record the lifespan of those bad boys.

Until next time.

That’s what server said.


37 thoughts on “Rollerblade office caster wheels – buyer beware!

  1. Just wanted to say I really appreciated the review, and I’m incredibly impressed you followed through on the update! Thanks for your diligence and the information!

  2. I purchased Stealtho wheels for my brand new Autonomous chair a few months ago. At first they were amazing, but almost immediately resistance to changing direction, or “pushing away from the desk” as you put it, began to build. The wheels themselves still roll beautifully, but the castors now absolutely refuse to change direction with my weight on the chair. Every time I want to move the chair, I have to stand up and get it started in the direction before it will roll that way. I find this extremely irritating and don’t understand what is causing it. I have examined all of the castors carefully, but I can’t see any issues with them. This behavior may be related to a quirk I noticed when I first installed the wheels. The chair base insists on spinning around around whenever the chair is being moved across the floor. That is, instead of just moving their offset opposite to the direction of travel like normal castors, the wheels go to a position perpendicular to the legs and force the legs to spin in a circle while moving. I may have to go back to the stock castors, even though I hate the damage they do to my hardwood floor.

    • Now, we did update this blog to provide more suggjestions then just Stealtho as we were not sure how good their thrust bearings really are. Even with a fresh set of Uniq’s there’s always a little bit of resistance in direction change. Now, for your hard-wood floors sake we added another suggjestion for a wheel called “ATOMDOC” It’s basically designed like a traditional office caster but the wheels are polyurethane so your floors won’t get jacked by plastics wheels.

      Anyhow, Thanks for checking out this blog. Take care!

      • I saw that ATOMDOC also makes roller blade style wheels and just got a set of those. So far, they’re not as fast as the Stealthos were initially, but they move around the floor easily. I will update you in a month or two if anything changes.

  3. Thanks so much for this honest and comprehensive review.
    I found your article after purchasing a set of seddox wheels for my lazboy office chair and noticing the resistance that you call “pushing away from the desk” I am concerned about damaging the chair.

    With everything that you discovered. What set of wheels do you suggest now? Should I put the original wheels back on?

    Thanks Again for putting out this information.

    • Hello Evan,

      The breakage happened rather recently. And thankfully I did have another set of Uniq wheels to put on. Now, even after all of this I don’t consider the Uniq’s to be terrible. Why? Well, looking at my other 4 wheels which do not have warping of the stem assembly. I can only assume that I was probably doing something really dumb with my chair.. such as leaning back only having 2 wheels touch the floor or hang off of one of the sides. Now, given the fact that Uniq’s are falling off of the market (This is possibly due to COVID and the vendors not getting enough shipments of the wheels into other countries).

      I think the next set of wheels I would like to try out would be one another commenter posted here. Look up “ATOMDOC” wheels. They use a more traditional stem system which could be good or bad depending on how structurally sound the plastic base is. But it returns back to the dual-wheel system while keeping the softer polyurethane for harder wood floors. Price wise they are slightly cheaper then a set of Uniq’s at around $30.

      Anyhow, hope that helps out.

  4. Thanks for the comprehensive and honest review. I found it very helpful. I just purchased a set of wheels from Seddox and even with the overwhelmingly large amount of highly rated reviews on Amazon, something didn’t feel right to me with the force needed to push away from the desk (as you say) and am concerned to cause damage to a pricey Lazboy desk chair.
    So after your full experience now with the Uniq caster’s failing, what do you suggest? stay with the Original casters from the manufacturer or is there a better solution for wheels?


    • Hello Evan,

      The breakage happened rather recently. And thankfully I did have another set of Uniq wheels to put on. Now, even after all of this I don’t consider the Uniq’s to be terrible. Why? Well, looking at my other 4 wheels which do not have warping of the stem assembly. I can only assume that I was probably doing something really dumb with my chair.. such as leaning back only having 2 wheels touch the floor or hang off of one of the sides. Now, given the fact that Uniq’s are falling off of the market (This is possibly due to COVID and the vendors not getting enough shipments of the wheels into other countries).

      I think the next set of wheels I would like to try out would be one another commenter posted here. Look up “ATOMDOC” wheels. They use a more traditional stem system which could be good or bad depending on how structurally sound the plastic base is. But it returns back to the dual-wheel system while keeping the softer polyurethane for harder wood floors. Price wise they are slightly cheaper then a set of Uniq’s at around $30.

      Anyhow, hope that helps out.

  5. Completely having the same problem with my office chair rollerblade wheels from amazon seller: sunplustrade. The wheels themselves are in perfect condition but the ball bearings are all over the floor in a sticky greasy mess and pica hazard for my small pup.

    • I like how their website just goes to an empty Wix account.

      Sorry to hear about your wheels! If you got them within 30 days or so I would contact the vendor that sold you those wheels for a return/refund.

      Anyhow, thanks for checking out our blog!

  6. I work in a very harsh environment..
    With steel dust heat and moisture..
    Welding I use a caster in my chair that is far beyond those “pressed bearing” configurations I use ATOMDOC “SEALD VERTICAL SHAFT BEARINGS”
    3″ roller blade wheel…keeps the metal dust out…no oil …no grease in these bearings…i weigh 235 lbs I’ve had them 2 years in this environment…no fan blows my chair across the floor…its °115 in my shop at times in this shop…
    Ps.. if you weigh over 250lbs you don’t need an office chair!!!!

    • Wow, The AtomDOC brand looks seriously legit! Especially that is has dual PU wheels instead of strapping roller-blades to my chair! I’ll certainly check those out on my next office chair purchase.
      And about that P.S…. I’m not pulling the lazyboy up to the computer desk! Hahahahah! I have not devolved to that state! ;D

      I’ll stick with office chairs as despite some problematic issues described at the end of this blog it’s not really the end of the world. ;D

    • I just ordered a set of the Rollerblade-type ATOMDOG wheels for my racecar-style office chair to add a couple inches to its base, and because I live in sandals when I’m not barefoot, and tend to ram my heels constantly with its cheap plastic wheels (which is VERY painful). I’m amazed I even have any skin left.

      Can the wheels be replaced with actual Rollerblade-branded wheels? I have a set of (expensive) extra 80mm wheels collecting dust on the shelf and want to use them. Stupidly, they only sold them in 8-packs even though I only needed 2, for some skates that I rockered a couple years ago.

      • I thought of replacing the wheels even in my Uniq’s since i have a few boxes of bones reds bearings kicking around. However, the annoying thing about almost all of these rollerblade office chair wheels is the fact that they riveted the bolts onto the assembly. which would force a person to get creative with angle-grinders / rotary tools to remove the rivet, then put in the proper hardware so you can customize/replace. Looking at the Pictures of the ATOMDOC rollerblade series they probably do the same thing since they placed a little plastic cover over each of the sides instead of something more substantial.

      • Thanks for letting me know of the Rollerblade style wheels from ATOMDOG.. I’ll put that up as a recommended wheel since Uniq’s are falling off of the market and it seems like ATOMDOC copied just about every aspect of the uniq’s from the nylon fork to the dual-bearing stem system.

        Looking at all of these rollerblade wheel setups they all use the same riveting system.. Which means you’ll have to use some sort of grinder to get those off.. but afterwards it’s just a trip to the hardware store for the right bolts and nylon nut and you could replace the wheels..

        I’ll try to do something like that with my old set of Uniq’s.

  7. Oh dear, finally a proper, detailed, unbiased and complete review of a product type that confuses so many people on the net. After spending dozens of hours trying to find a set of wheels for my chair, and going through the endless Chinese no-names with a “company” logo on Amazon and eBay I have some clues where to search. THANK YOU SO MUCH for spending your valuable time on this extensive review! After reading, I contacted the Ukrainian STEALTHO who they were super quick to react and even helped find the best deal for their casters on the Internet.

  8. I LOVE your review of the caster wheels! You covered everything I needed to know and more. You saved me a lot of money and stress! Thank you!

    • I’m super glad it helped you out. As always I thank you for checking out my little blog!

      Take care out there! and hope you get a long life with your wheels as I currently am. My office chair is falling apart to i might have to get a new chair and transfer the wheels right on over to that one.:)

  9. Well written article the “Rollerblade Office Caster Wheels”. It was extremely informative and gave suggestions instead of just bashing a bad product. Love how much effort went into measuring and scrutinizing each model. Thank you for passing along your caster quarrels and giving us some readers some insight!

  10. I hope this reaches you. First of all, all or at leas tomato of the the times you used the the word “then”, you should have been using the the word “than”. It made the article somewhat confusing and thereby, harder to read. But good grammar aside, I found you assessment informative, enlightening and more honest than all of the drivel I’ve found doing my research for GOOD office chair caster. I’ve been researching casters for at least a week and your blog confirmed what I had come to believe. Most of the rollerblade wheels are crap manufactured in China. In the case of at least one re-seller, SunnieDog, there really is an actual business with a website. It is operated by a women in Maine, USA. HOWEVER, her business does not manufacture the wheel. That product is, I believe, also manufactured in China. I base that in the IDENTICAL appearance of SunnieDog’s wheel to virtually any other rollerblade type wheel.
    I had also been looking into STEALTHO. They do have an actual website also. But they also seem to have the same ties with Chinese manufacturers that make the crap wheels. Reviews one other websites as well as their KickStarter page describes the same type of design flaws and product failures as the other wheels. Their response to this is swift replay to their customers through their website. Kudos to them for standing behind their product and for taking responsibility for their product failure. I have just started doing the research of UNIQ. It looks to me like their design is sturdier and better quality. But it disturbs me that I may not be able to reach out to them should anything happen as a result of product failure. So thank you for the honest critique.

    • First, apologies for the grammar. You’re right, I need to be better! I have went through and corrected then/than issues :)

      Also I would like to thank you for checking out this blog and for your response. Didn’t know that about SunnieDog. If they can show me their wheels do not explode like the countless others from China. I would be happy to revise the article accordingly. I have currently bought three sets of UNIQ wheels for friends and family and so far not a single problem. The current set on my chair is now a year old and outside minor wear on the rollerblade wheel and some debris i had to clean out of the axle they are still rolling as if I bought them yesterday.

  11. Great site … thanks for the detailed, engineering-oriented critique of the Rollerblade-style task chair casters that you’ve had experience with. Like you, I find it frustrating that 99.9% of all products made these days are just generic knock-offs of an established design made with cheap materials and little to no quality control. Today, as I was trying to find Rollerblade-style casters to replace the shit ones on my office chair, I was only able to come across two products which differentiated themselves via design improvements and the use of higher-quality materials & components from all of the crap being sold on Amazon and elsewhere. Uniq’s was one of them and Stealtho was the other, and it was while researching both of these products further that I came across your site. Anyway, I ended up purchasing Stealtho’s wheels largely due to the huge difference in customer service (Stealtho’s appears to be world-class, Uniq’s appears to be “Fuck you, you bought our product now deal with it!”). I also liked Stealtho’s use of ABEC-9 ball bearings in the wheels, although I wish their thrust ball bearings were fully sealed like the ones Uniq uses (at least they incorporate a cage, which I’m hoping will prevent them from failing like what happened to your original set of wheels … we’ll see!). BTW, not to be a dick or anything, but your reference to the bearings used in Uniq’s wheels as being “roller-bearings” is incorrect; they are ball bearings since they incorporate a ball as the anti-friction rolling element, and not a cylindrical roller as with roller bearings. Anyway, I just wanted to let you know about Stealtho’s wheels in case you ever start having problems with the Uniq wheels (I hope not!). I’ll try to remember to give you an update on the Stealtho wheels in about 6 months, but if they turn out to be shit, I’ll definitely let you know immediately via another comment here because I rarely make product recommendations, and when I do, I want to make damn sure people can rely upon them. Thanks again for alll of the great info!

    – Ron

    • Hello Ron,

      First. Thanks for visiting my blog. Also thank you for correcting me on my usage of roller bearings over ball bearings. That was a total oversight on my behalf and I thank you for pointing that out to me!

      Also you’re totally right about Uniq’s customer service (or lack there of) , at least Stealtho actually has a working website unlike Uniq so I do have to give credit where it is due. I don’t have a problem with thrust bearings on office wheels so long as they are engineered correctly. These chinese knock-offs powdercoat paint the inner rails which tolerance is lost within days when the paint grinds away. Bearings pop all over the place.

      The only last piece if criticism I will give both Uniq and Stealtho is I wish they both would stop riveting the truck or connecting rod into their casters and just use a lockable bolt in order to make both the roller wheel and bearing serviceable. ABEC 9 is sweet and all (and in fact better then Uniq which I think they’re sealed ABEC3 608z’s. But what if I wanted to put in a set of Swiss Bones loaded with tri-flow? Overkill perhaps. but hey, when you need to roll across your office floor getting that extra 5 feet of drift is important! :D

      I shall update this blog and point to the Stealtho site as a possible solution for people since their net-presence actually seems legit with having a kickstarter and even their own website. Way better then just an Amazon store front.

      And please leave additional comments of how your casters are doing. I’d love to hear it. I may just purchase a set of Stealtho’s to give to some of the people at work.

    • I’m very happy to have found your blog. I’m about to move into a house with all hardwood floors throughout and worried about ruining the floors, especially if a so-called rollerblade wheel fails and drives a deep gouge into the wood.

      I was trying to make sense of these seemingly identical caster wheels when I found your fascinating research.

      It looks like my better choices is to order either Uniq or Stealtho wheels and keep my fingers crossed, right?

      Any chance you can contact Ron Jandrlich for an overdue six-month update on how his Stealtho casters have held up? (See his comments dated July 26, 2019)


      • Well, you don’t need to keep your fingers crossed. As we’re still using Uniq wheels in four chairs. The oldest set is in my chair at a year and a half now. Still rolls like new. The other chairs are used by gamers so you’re looking at 4-8 hours a day of constant abuse. One of them actually destroyed the backrest of their chair and the Uniq wheels have now been transferred to a second chair.

        I can’t say much of the Stealtho series. But with Uniq; I’ve destroyed 608 bearings before on my skateboard. The 608ZZ’s which are metal shielded which is what is in th Uniq’s. Although it makes it less serviceable it also means the bearings cannot pop out. Under extreme abuse the bearings would lock due to inner racer damage more then have any fall out.

        Given that you’re not jumping your office chair off of 6 foot gaps. I think the bearings will be alright.:D

        Anyhow, thanks for checking out this blog!

  12. Hello

    can you please tell me length and diameter of a shaft in millimeters

    i want to buy these “Uniq” wheels and where ever i find them for purchase Amazon/eBay and some other sites these measurements are missing

    Thank you

    • Hello,

      Thanks for checking out my blog.

      I took off a chair wheel and measured the diameter with my calipers . Then, took a picture and updated the article. In case you were curious the stem diameter is 10.87mm .

      Hope that helps out!

  13. Well, I just installed my set of UNIQ Caster wheels for my Herman Miller Aeron Chair. Oddly, there is only a WEBSITE ON THE BOX NOT THE Card inside. They seem to glide ok for now. I had the other metal ones and they were all FALSELY advertised and were crap. Suddenly noticed small ball bearings all over. These are a step above, however, I agree with you… C’mon American manufacturers! There has to be a profit here. Solid bearings would be ideal and no “swaged” stem… bolt it in so I can just replace the bolt eventually… much like how some “walker wheels” are made. Yes, I don’t like the other conventional casters because these “rollerblade” types roll much easier. I will buy the 1st Made in USA ones if designed well. Thank you for this blog… very helpful. I will keep you posted as to the life of these UNIQ ones. Cheers!

    • Thank you very much for checking out this blog. I am happy to report that i’m going on 9 months now since the creation of this article and with heavy shag carpet flooring the wheels are still rolling strong. I have a feeling that the plastic legs on my chair will snap long before the UNIQ casters will give out. lol!

  14. Just wanted to give another update.

    I found an email “” for support of the broken casters.

    They were very helpful and nice, and immediately refunded the $$$ spent without me having to return them.

    I forwarded this blog post about the issues you had, which are the same issues I had (except for me it was hardwood floors).

    I hope they get their product straight, because their customer service was spot on and helpful.

    Thanks again for this post and your suggestion.

  15. I got the Opttico Office Glider casters 2 months ago and now the bearings are leaking out all over the place.

    Trying to find the website for the “lifetime guarantee” has been futile, brought me here tho.

    Thank you for posting this info. I will have to check out those “Uniq” wheels, hopefully I can get a refund from Amazon on the Opttico ones.

    • Well, we’re glad this site helped out a little. Just to give you an update the “Uniq” roller-bearing caster wheels are still going strong on my heavy carpet 5 months after initial purchase. And the carpet is not getting destroyed like what plastic rollers do. I bought 4 more sets for my gaming buddies and outside of the little plastic caps on the side that likes to pop off which is purely cosmetic they’ve been solid.

      Generally Amazon is rather good about returns. In the event they won’t accept it. Be sure and write a review. Amazon sellers ‘love’ reviews. ;)

  16. We bought these wheels from Amazon a few months ago, they were fine at first now after using for a while they are so loose they go too easley that the chair goes from under you and afraid to sit back down. Need to purchase another to replace them

    • Well, try not to purchase ones exactly like what you got. I’d go for the “Uniq” brand or any caster system which has standard issue roller-bearings in the stem. I’ve been rocking those now since late august on heavy carpet flooring and the stems are incredibly stable on them. Granted they seem to be ABEC5’s which means you may not win any office chair races with them. But they’ve saved my flooring AND carpet. :)


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