What bearing is good for fidget spinners? miniature ceramic ball bearings?

Miniature ceramic ball bearings
Merit:
1. Zero corrosion. Can withstand corrosive working environment.
2. Temperature difference changes can be borne at will. High and low temperature switching has no effect on ceramic bearings.
3. Not easy to deform. Ceramics have a higher modulus of elasticity than steel, so they are rarely deformed by stress.
4. Long service life. The rolling pellets of ceramics have a lower density than steel and are naturally lighter, so the friction caused by the centrifugal force of the rotating outer ring can be reduced, and the service life is longer.

Shortcoming:
1. Difficult processing and high cost. So expensive.
2. Not resistant to impact. After all, the hardness is high.
3. It cannot be "thermal expansion and contraction" with the equipment. Temperature has no effect on ceramic bearings, which is both an advantage and a disadvantage.

Metal bearings
Merit:
1. Processing is simpler than ceramic bearings, so the cost is also lower.
2. Ceramic bearings are more suitable for specific equipment.

Shortcoming:
1. The service life is shorter than that of ceramic bearings. All ceramics last 10-50 times longer than all steel, and hybrid ceramics last 3-5 times longer than all steel.
2. Lubricant consumption than ceramic bearings. In the case of thinning of lubricating oil, the lubricating capacity of ceramic bearings is still no less than that of conventional lubricants commonly used in steel bearings.
3. Low rigidity. The rigidity of ceramic bearings is 15-20% greater than that of ordinary steel bearings.
4. The wear resistance is not as good as that of ceramic bearings. The material itself decides.

miniature ceramic ball bearings are used in extremely harsh working conditions and environments, and can be used in medical equipment, high-speed motors, optical instruments, cryogenic engineering, high-speed machine tools and other fields.

Contact: Ellen
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