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✨ Star Ceramic Long-lasting Precision Rating Pack Review

3

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Average

Revainrating 3.5 out of 5  
Rating 
3.7
🔩 Bearings, 🔩 Power Transmission Products

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Description of ✨ Star Ceramic Long-lasting Precision Rating Pack

1) Bearing Type&Specification : The item model is 608 bearing. Here is the dimension for your reference: bore diameter 8.0mm, outside diameter 22.0mm, thickness 7mm, net weight: 9Grams/pc. 2) Outer Ring&Inner Ring: The outer ring and inner ring of this bearing are all made of 420 stainless steel, which can performance well with low noise. It has the characteristics of oxidation resistance, thus provides you with a long usage life. 3) Long rotation time. 4)Silicon nitride ceramic balls for resistance to shock, corrosion, and high temperatures.

Reviews

Global ratings 3
  • 5
    1
  • 4
    1
  • 3
    0
  • 2
    1
  • 1
    0

Type of review

Revainrating 4 out of 5

Good ball bearings

I wouldn't say they are worth the price. There are better performing bearings for $2.50 each. You have too much leeway. It's good that they are not lubricated and rotate freely.

Pros
  • Industrial & Scientific
Cons
  • Crumpled

Revainrating 5 out of 5

Good for your 3D printed spinner needs.

Ideal for spinners. The other bearings are filled with grease to mask the average build quality. They were perfect for some 3D printed spinners.

Pros
  • Deep groove ball bearing
Cons
  • Newer model could have been chosen

Revainrating 2 out of 5

Poor quality for ceramic bearings

This is a decent bearing that runs smoothly when mounted flat but the biggest disappointment is that the inner ring moves freely (coaxial). With this type of bearing, the inner ring should not have large or lateral movements (ie, no rattling). If the application is for a wheel bearing you will have a fair amount of "scraping" as the wheel can toe-in/toe-in leading to premature wear/failure. Recommended for low-speed, low-cost applications only; definitely not for precision or critical work…

Pros
  • Power transmission products
Cons
  • Very expensive