Rolling bearings
are generally made of chromium bearing steel, which is wear-resistant
and temperature-resistant. The frictional resistance between the rolling
part and the contact surface of the bearing is small, but generally it
cannot withstand the impact load.
The main
parts of the sliding bearing are the bearing bushes. The sliding
bearings used in the power plant's large turning equipment are generally
made of babbitt. The softening point and the melting point of the
bearing are low. The contact area with the shaft is large, and the
bearing load and shock absorption are available. Good,
can withstand the impact load, if the lubricating oil stored in the
lower part of the oil need to be driven to ensure the formation of tile
surface oil film. General requirements Rolling bearing temperature does not exceed 80 °C, sliding bearing temperature does not exceed 70 °C.
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