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WMYCONGCONG 4X9X4Mm Flanged Miniature Shielded Review

1

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Excellent

Revainrating 5 out of 5  
Rating 
5.0
🔩 Bearings, 🔩 Power Transmission Products

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Description of WMYCONGCONG 4X9X4Mm Flanged Miniature Shielded

Mini ball bearings, made of high quality bearing steel, High load bearing, low noise and high speed, providing with long service life. F684ZZ bearings are double shielded to avoid contaminants entering, also can save lubricant and extend the service life. Applications: Ideal for 4mm shaft/rod projects, for electric motor, 3D printer, quadcopter or ship model. 4x9x4mm: inner diameter 4mm , outer diameter of 9mm, thickness of 4mm. Package Content: 20 * F684ZZ 4x9x4mm Flanged Double Shielded Ball Bearing.

Reviews

Global ratings 1
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Type of review

Revainrating 5 out of 5

Great little bearings

I use them for small gears. I really don't need that. but in the end there is one more goal. Hmm, they work great, apart from being a bit oversized in each pair. Which is quite normal for this price and in my opinion does not affect the performance. Just don't push the axle/shaft through the hole. The ball can be crushed very easily under pressure. my fault. 3 broke without realizing until I flipped them over and they were rough. I will definitely order more.

Pros
  • Great design
Cons
  • Crumpled packaging