100 PCS 608-2RS Ball Bearing - Double Rubber Sealed Shielded Miniature Deep Groove Bearings for Furniture Wheel, Small Machinery, Electric Motors, Hobby Drones, 3D Printers(8mm x 22mm x 7mm)(608 2RS)
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Features
- Ideal for Small Machinery & Recreational Gear As a high-quality deep groove ball bearing, the 608 model is a standout choice for small-scale equipment. Its a staple in skateboard wheels, inline skates, and various compact machinery, thanks to its ability to balance load-bearing capacity, durability, and precision. Perfect for both casual and professional use, it adapts seamlessly to your gears demands.
- Versatile Design for Multiple Applications Beyond skateboards and inline skates, these 608 bearings shine in a range of small machinery, including electric motors, hobby drones, and 3D printers. Their adaptable design makes them a go-to solution for any project requiring reliable rotation and low maintenance.
- High-Precision Engineering for Smooth Operation Manufactured to stringent precision standards, these bearings guarantee smooth, efficient performance even under heavy loads. Every component is crafted to minimize wobble and maximize stability, ensuring your equipment runs quietly and consistently. Say goodbye to jolts or uneven movementexperience the difference precision makes.
- Exceptional Hardness & Toughness for Superior Durability Crafted from premium Alloy steelengineered specifically for high-performance bearing applicationsthese 608 bearings boast impressive hardness and toughness. This unique combination ensures they excel in heavy-load scenarios, standing up to rigorous use without compromising strength. Whether supporting skateboard tricks or powering small machinery, they deliver long-lasting reliability you can count on.
- Low Friction for Extended Lifespan & Energy Efficiency With an ultra-low friction coefficient, these bearings spin with minimal resistance, reducing energy loss and wear. This not only extends their service life but also enhances the efficiency of your equipmentwhether youre cruising on a skateboard or powering a motor, youll notice smoother, more sustainable performance.
Description
608-2RS miniature radial ball bearing has red double seals and a nylon cage, and conforms to the ABEC 1 precision standard. This light duty bearing has an 8 mm bore diameter, a 22 mm outside diameter, and a 7 mm width. Its precision is rated at ABEC 3 by the Annular Bearings Engineers Committee (ABEC), allowing higher speeds and creating lower friction than less-precise ball bearings, and its radial internal clearance is C3 for radial slack between the inner and outer rings is greater than CN (normal) to compensate for thermal expansion. This bearing is made of ASTM International 52100 steel and heat treated to increase hardness for optimum wear resistance. Its deep ball grooves in both races support high radial and axial loads, its straight bore fits conventional cylindrical shafts, and its nylon cage prevents the balls from coming into contact with each other during use, reducing friction, vibration, and noise. Removable single lip contact seals on both sides protect against contaminants and retain lubrication applied at manufacture. This ball bearing is suitable for use in skate boarding, inline skating, and other skating applications.
Brand: SACKORANGE
Material: Carbon Steel
Item dimensions L x W x H: 0.87 x 0.28 x 0.31 inches
Item Weight: 0.2 Kilograms
Bearing Number: 608 2RS
Brand Name: SACKORANGE
Bearing Number: 608 2RS
Bearing Type: Ball Bearing
UPC: 730060656656
Part Number: CS-sack-047
Manufacturer: SACKORANGE
Model: CS-sack-047
Unit Count: 100.0 Count
Item Dimensions: 0.87 x 0.28 x 0.31 inches
Item Weight: 0.2 Kilograms
Item Thickness: 0.7 Centimeters
Outside Diameter: 22 Millimeters
Material Type: Carbon Steel
Compatible Lubricant: Grease
Specification Met: ABEC 3
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Jun 13
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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![[2-Pack] 205PP9 - Agricultural Bearing - Deep Groove Radial Ball Bearing - Round Bore: 0.75 in - Outer Diameter: 2.04 in - Inner Ring Width: 1.375 in - Double Seal](https://m.media-amazon.com/images/I/51n96-5UOWL._AC_US500_.jpg)
Top Amazon Reviews
As others have stated these are covered in grease. Its a basic coating that most bearings you order come with and was not a big deal. The bearings come in these plasic tube holders and all i did was fill it up with rubbing alcohol (best i had) and shook it then used a paper towel to clean them off. So far out of the 2 tubes ive done that to and tested, ive only had 2 hard to move bearings. It was clear this was due to the plastic cover not fitting well and not a problem with the bearing itself. If you have the time to clean them or were planning on using the bearings in a more mechanically heavy application and will grease them yourself then these are perfect. Very cheap and so far average quality. The grease smell is just a normal one i dont know why some people were overreacting. Im building mechanical joints for a raspberry pi project and these are exactly what i needed to ensure everything moves properly. I may clean them and mix in graphite powder with more grease to use them as sliprings since damage is not a concern for the sheer plethora i now have.
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Reviewed in the United States on July 13, 2021 by Dimitri
These are excellent quality for the low speed applications for which I buy bearings like this in my home machine shop. I use them as guides in various applications. For that they are an excellent value. I don't think the quality is high enough that I would use them in skates or skateboards, but it should be clear that these are designed for a low price point, not high quality high speed low rolling resistance applications. They aren't exactly gritty or sloppy, just not quite the quality I would want for those applications.
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Reviewed in the United States on December 28, 2024 by J. Miller
Overall very decent bearings for fidget spinners. Not Amazing, but the affordability alone makes these bearings a competitive product and after thoroughly cleaning them they worked well and spin for a decent amount of time. If you are using these bearings to make spinners as gifts (as I did) then these will work just fine. If you are making them to sell… I would probably pay just a little more for a higher quality bearing. I am not sure why I liked the “single lip contact seals” of these bearing so much but they were very easy to remove for cleaning and better yet easy to put back onto the bearing afterwards. Just don’t pry them up where the “608RS” is stamped as they are thinner there and are more likely to break in that area. Taking everything into account I would say that you get a good bearing for the price. The only thing I didn’t like (which cost a star 4/5 instead of 5/5) was the lubricant that they used inside of the bearing. I am not sure if they used a silicon or what but when I received the bearings, they were stiff and sticky and didn’t want to spin. With other bearings I was used to having them packed with grease. This was not the case here. These bearings were hard to spin and were pretty much unusable directly out of the package. These bearings were not packed with grease (as many bearings are) and when I took them apart to clean them, I didn’t see any grease at all. As I mentioned before they seemed sticky as opposed to being slick or slippery and I had a difficult time even spinning them. I figured I would simply soak them in 100% Pure Acetone as this is usually enough to remove lubricants from bearings that I have worked with previously. Unfortunately, after soaking them for over 24 hours in Pure Acetone (shaking the container occasionally) they were still stiff and sticky! I almost didn’t believe it. I soaked them for another 24 hours and they were still sticky! I ended up having to use some Carburetor Cleaner and then an Engine Degreaser to cut through whatever was making them sticky. I was kind of shocked at how resilient this sticky substance was. After finally being able to remove the sticky stuff from the bearings they smelled pretty bad (engine degreaser smells). So, I soaked them in 100% Acetone again for a couple of days, took them out, sprayed them off with compressed air while spinning each one and then I let them dry. They still kind of smelled so I soaked them again in a clean container with fresh and clean Acetone and that seemed to do the trick. Kind of a lot of work I suppose. But once they were cleaned the bearings fit perfectly, spun well and helped make some pretty good custom fidget spinners. If you don’t feel like thoroughly cleaning your bearings when you receive them then you might not enjoy this particular product. If you are willing to spend some time cleaning and applying some of your own elbow GREASE to get these bearing clean and spinning properly then for the price you probably can’t go wrong.
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Reviewed in the United States on January 9, 2020 by Brian B.
WayneChicago wrote an excellent review. You should read that before reading mine. He outlines is perfect detail all the reasons why people buying these are complaining. Only he says it with tact and finesse. But I don't have that. So if you want a more direct rebuttal to the absolute nonsense you'll read in the product review section about these being akin to sand-filled garbage, then keep reading. However, If sciency words are just flowery nerdspeak to you and breaks your brain, then just sop reading now and go buy the grossly overpriced BONES bearings. They make the cool whizzing sound on first rip out of the box. Plus they're all shiny and you can't put a price on shiny, can you? Now....If you're not a mental tree stump and words with more than 3 syllables don't frighten you, then by all means, continue on! General Complaint: These are covered in some kind of oil and don't spin. Rebuttal: That is CORRECT! The insides are packed with grease which is thick. Think cooled bacon grease. When you reheat cooled bacon grease, what happens to it? It thins out and becomes more viscous, right?? Same thing applies here. These are packed with grease because they're designed to be run in machines for long periods of time. Which means heat from rotational friction, which means the grease viscosity inside the bearing thins due to thermal conduction. This is WHY they were built the way they come in the box. So you can use them in machine type applications right out of the box, where thermal friction needs to be considered. Ok, but can I still use them for skateboard or roller skate wheels though? YES, you can but you need to do a little work first. No big deal if you're not lazy. If you want these bearings to spin like a fidget spinner and go whizzzzzzz, you have to dissolve the grease inside the bearings and use a thinner lubricating agent in it's place. WayneChicago goes over how to do just that in his review. So I don't have to. Thanks, Wayne! *fistbump* And if you can't find WayneChicago's review, don't act like you don't have Google. Just look up "How to dissolve grease in ball bearings". This isn't rocket science... As far as I can tell, the outside grease feel is just machining oil which is often times applied to metal surfaces as a water repellant to keep the surfaces from rusting due to atmospheric conditions. Wood workers and machine shop operators know exactly what I'm talking about. Probably some mechanics too. Why would they do that? Well...where are these things made? Is there any water that might get into the bearings in transit from the factory to your house? Yeah, there is. There's literally an ocean of it. Highly corrosive salt water to boot. So, in order to make sure these don't arrive as little jammed up rust cakes at your doorstep courtesy of the Amazon delivery guy, they coat them in a light oil or maybe even some of the inner grease to prevent that from happening. You're WELCOME!! It's a prophylactic measure against people who don't know better. And also so people don't buy these and end up in their review section complaining about that too. Like so many other people are out here doing. The people complaining simply don't know what they don't know. And are trashing a decent product for the price from a company that is CLEARLY putting in an honest effort to deliver value to the consumer for a VERY REASONABLE PRICE. Some of these might have manufacturing defects, Some might last longer than others. When I bought mine they were under $0.30 each. I'm not putting mine under heavy load for long durations anyways, and I'll have PLENTY of replacements should some of them give out, as they sometimes do. I have not tested them yet but I don't need to to know that I DID NOT get screwed on the transaction. This is EXACTLY what I expected and I'm sure will exceed my expectations in performance. Sure, you get what you pay for. But if you know what you need to know before making a purchase, you'll find INCREDIBLE value in these bearings given you're buying them for the right application. If you find yourself with a chapped ass complaining about this product because you didn't know what you needed to know before making the purchase, chances are you also didn't take my advice and spring for the BONES. And that's on you, playa... -5 Stars.
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Reviewed in the United States on March 10, 2022 by Billy Rhyze
I bought these after realizing that while I CAN print 608 bearings on my H2D, it's just NOT worth the expenditure of my time and effort to do so. These are inexpensive, and work FAR better than printing them out. My cost was about $0.17 each and they were ready right now, not in 3-4 hour to print a set that doesn't work as well or handle the same load. The ROI on printing bearings just wasn't there. These roll smoothly out of the box and are dead quiet, requiring no braking in or lubing up prior to use. Just grab them and shove 'em in.
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Reviewed in the United States on April 19, 2026 by Jack A.
Incredibly sloppy. Fine for 3D printed toys and such. Not useful for anything more.
Reviewed in the United States on January 25, 2026 by Chris Summerlin
These bearings spin incredibly freely right out of the box and the rubber seals keep them running clean for a long time. They were perfect for my 3D printed spool holders and skate wheels, offering a huge performance boost over cheap alternatives. Getting 100 for this price is an unbeatable value.
Reviewed in the United States on May 15, 2026 by Aaron Z
I'm 20 bearings in to this pack of 100 and all of them have been good (no rough spots or grinding), which is substantially better than last time that I ordered 608 bearings. If you need them to spin fast, wash out their grease with some isopropyl alcohol and put some light oil on. Hard to beat for $0.19 a piece.
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Reviewed in the United States on July 2, 2024 by Scott