YAMASO 20 Pcs 608 2RS Ball Bearings – Bearing Steel and Double Rubber Sealed Miniature Deep Groove Ball Bearings (8mm x 22mm x 7mm)

Bought these to replace old bearings in my GE Opal Ice Maker 2.0 and they fit perfectly. Smooth rotation and quiet operation — the double rubber seals feel durable after multiple rounds of full ice buckets. Great value pack for small appliance repairs or DIY projects. Everything in transmission now turns smoothly without errors popping up. Used for other Halloween DIY projects and accurately turns skeletons arms every time my IR sensor goes off. They sat outside for over a month on them and still very work perfectly so definitely durable to weather.

The YAMASO 608 2RS ball bearings exceeded my expectations. Every bearing in the pack spins smoothly right out of the box, with no grinding, noise, or resistance. The seals are tight and well-made, helping keep out dust and debris, and the overall build quality feels solid and consistent across all 20 pieces. I’ve used them for a few different projects—skate wheels, small machinery, and DIY builds—and they’ve performed flawlessly in every case. They run quietly, maintain good speed, and show no signs of premature wear.

Great bearings and better price

Works well and holds up to the elements. I used them in spinning garden novelties. Like wind mills and weather veins. Have been working outside exposed to the elements for several months maybe a year. I don't remember exactly when I bought them. Its been a good long while. I even installed them incorrectly with a hammer rather than correctly with a press. So they are durable.

Not fancy packing or a box, just functional, and they work. No binding, hops, etc.

I picked up this 20-piece pack of YAMASO 608-2RS Ball Bearings specifically to use in my 3D printing workshop for custom filament spool rollers, turntable scanning rigs, and mechanical print-in-place assemblies. The 608 size is the absolute benchmark standard for hobby makers, but cheap generic bearings often arrive packed with thick, sticky grease that stops them from spinning freely, or feature loose shields that let shop dust ruin the tracks. This set completely exceeded my expectations. Why these miniature bearings are an exceptional buy for makers: Whisper-Quiet, Low-Friction Spin: The internal bearing steel balls and raceways are precision-ground. While they feature a protective internal lubricant layer, it is light enough to allow the bearing to rotate with a completely liquid, fluid motion without any gritty catches or tight spots. Excellent Double Rubber Seals: The "2RS" double rubber sealing system is excellently engineered. The rubber shields fit tightly against the inner and outer rings, creating a solid physical barrier. This is critical in a 3D printing environment because it completely blocks fine plastic strands, support dust, and ambient shop grit from dropping into the ball tracks. Highly Consistent 8x22x7mm Tolerances: I checked several of these randomly with a digital caliper, and the dimensions are highly uniform. The 8mm inner bore, 22mm outer diameter, and 7mm width are true to spec, ensuring a perfect press-fit into printed housing pockets without fracturing your plastic layer lines. Makerspace Design & Assembly Tips: CAD Modeling Tolerances: When designing a wheel, roller, or pocket to receive these 608 bearings for a tight press-fit, aim to model your housing diameter roughly 0.1mm to 0.15mm larger than the bearing's physical size (e.g., model the pocket at 22.15mm). This provides just enough clearance to press them home securely using a small bench vise without cracking your printed walls. Break-In Period: Keep in mind that rubber-sealed bearings naturally have a tiny bit more initial resistance than open shield variants due to the rubber contact lip. After a few minutes of continuous rotation under a spool's weight, the seals seat perfectly and slide effortlessly. The big takeaway: This YAMASO 20-pack provides an incredible supply of high-grade, reliable mechanical components for a very affordable price. They offer pristine dimensional precision, a completely smooth spin profile, and robust dust-shielding that ensures long-term durability on any workbench. They are an essential hardware addition to any maker's small-parts organizer drawer.

I bought this 20-pack of YAMASO 608 2RS bearings to replace the worn-out, crunchy wheel bearings on a Drive Medical Aluminum Rollator. They were an exact fit for the fold-up wheels and went in without any trouble. The double rubber seal is excellent because it keeps out dust and outdoor debris, ensuring they stay smooth for a long time. The walker rolls like brand new now, completely silent and effortless.

I used these ball bearings for my 3D prints, and they’re working perfectly. The size is exactly as stated, and they feel well-built. I was pleasantly surprised by the presentation – the metal case and secure packaging show attention to detail. They roll incredibly smoothly and are a great value overall!