Why are support shims used instead of ordinary bearings in the booster of catalytic converters?
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A booster is essentially a centrifugal pump; why is it supported by shaft bearings rather than ordinary support bearings? When using a gear pump, an oil station is required; for bearings with ordinary pumps, only an oil cup is needed. Is it because it needs to go through a gearbox and a motor for transmission? (Pump speed 8100 ； Motor 3300)
Take a look at the selection principles for rolling bearings and sliding bearings; sliding bearings are generally used in applications with high speed and light loads, as well as low speed and heavy loads
Long service life, high strength of use, and the equipment operates at a very high speed
The absolute pressure at the inlet of the booster is 0.44 Mpa, and at the outlet it is 0.55 Mpa; the medium is air. Is a high rotational speed necessary under these pressure conditions?
A tile is a plane, while a bearing is a line,,,
Is this a centrifugal fan? :L
For compressors or pumps operating at speeds of over 8,000 revolutions per minute, rolling bearings are rarely used. The comprehensive catalog of SKF bearings shows that all of these bearings have a specified maximum speed limit. Of course, there are also high-speed bearings capable of operating at tens of thousands of revolutions per minute, but pumps and compressors operating at such high speeds benefit from a shaft bearing design that offers greater reliability
But from a structural perspective, it’s clear that ordinary bearings have a smaller load-bearing area, while bearing shells have a larger one.
Right, a centrifugal pump – when the medium is air, isn’t it just a centrifugal fan?
Thank you. Ultimately, it’s still the rotational speed that matters. Is a high rotational speed really necessary under conditions where the inlet absolute pressure is 0.44 and the outlet pressure is 0.55?