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Your cart is empty.Product Description
40 pcs 1/2 Inch Brass Balls, ideal for a variety of DIY projects and applications.
--Solid brass balls, with decent weight, each about 7.7 grams.
--With smooth surface finish and precise dimensions, ensure smooth and efficient rotation.
--Crafted from quality brass, can well resists to water, oil, gas etc., with corrosion resistance, long-lasting.
Suitable for making bearings, valves, tumbler media, DIY decorations, jewelry for machinery, automotive industry, home appliances and so on.
Larry Burns
2025-08-04 17:35:34
I use these to pulverise the chemicals in a ball mill making black powder.
RedReplicant
2025-07-18 14:05:49
I got these brass bearings to install inside my 3d prints as weights. In order to do that, I add small round cavities inside the print so that the bearings can be inserted during a pause in the print time and then sealed securely in the print as it completes. Just to note, these are not actually 1/2", they are closer to 12 and in some cases 12.1 or 12.2 mm. I found this out when I printed my first attempt at using these and they fit quite loosely inside the sockets. Not terrible since I just filled in the extra space with a little hot glue on the fly, but it's better to know that right off the bat.
Richard R.
2025-07-13 18:42:37
These bearing balls are a little less expensive than some others and some applications price is a consideration these are used to pulverize powdered chemicals.
lori pod
2025-07-05 18:24:53
worked
D. Selvage
2025-06-28 14:54:26
These are for a marble run I am building. I wanted brass as I think it will look better than steel in the final assembly. These are perfectly round and smooth with a shiny finish.The only issue is that these are not really 1/2", they are 12mm as checked with a micrometer. I am early enough in my design that the difference won't cause me a problem but I have run into inaccurate representations between metric and SAE measures frequently on Amazon. A true 1/2" would measure 12.7mm.These will be perfect for my application but -1 star for the inaccurate size in the description. Nowhere in the description did it mention that these are actually 12mm.
curtO.
2025-05-18 09:26:44
What you see is what you get with these brass bearing balls. They are good quality and very consistent across all the balls. I plan to use this with crafts and so far they have worked out well for my usage.
Customer Review
2025-04-18 18:39:55
These came up as pure Cu/Zn with no detectable lead. They seem like good quality brass balls. They have a little bit of surface variation, but no difference from other balls available from regular distributors.
Ravanja
2025-02-01 17:21:22
These brass balls measure 11.92mm in diameter and very consistently so they are precise. However, they are not even 12mm let alone 1/2".If you need close to 12mm, these are slightly under. If you need 1/2", these are too small.The description says about 1/2", so technically they are correct. It's about 1/2". Whether that is good for your needs or not however is your call to make. They are however very precise, there is negligible variation between the samples.
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