Precautions for bearings rotating at high speed

Core Tip: When the bearing rotates at high speed, especially when the speed is close to or exceeds the limit speed recorded in the dimension table, the following should be noted: (1) using precision bearings; (2) analyzing the inside of the bearing
When the bearing rotates at high speed, especially when the speed is close to or exceeds the limit speed stated in the dimension table, the following should be noted:

     (1) use precision bearings;

     (2) Analyze the internal clearance of the bearing (considering the reduction of the internal clearance of the bearing caused by the temperature rise);

     (3) Analyze the type of material of the cage (for high-speed rotation, it is suitable to use a copper alloy or phenolic resin cutting cage. There is also a synthetic resin molding cage suitable for high-speed rotation);

     (4) Analyze the lubrication method (using lubrication methods such as circulating lubrication, jet lubrication, oil mist lubrication and oil and gas lubrication for high-speed rotation).

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The motor uses ceramic bearing technology...

Core Tip: Precision ceramic bearings are a masterpiece of improved bearings in terms of manufacturing materials. The core core is precision machined from ceramic powder, thanks to the high strength and high hardness of precision ceramic materials.
Precision ceramic bearings are a masterpiece of improved bearings in terms of manufacturing materials. The shaft core precision-processed with ceramic material powder has benefited from the high strength, high hardness and high temperature resistance of the precision ceramic material, which greatly prolongs the service life of the bearing. Precision ceramic bearings are widely used in various small motors, typically represented by DC fans, small pumps, and optical storage equipment spindle motors. The fan life of this bearing is even higher than that of a double ball bearing fan, which can reach 80,000 to 100,000 hours. .

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