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Application of rolling mill bearings
Source: China Bearing Network Time: 2013-10-10
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The operation characteristics of the imported bearings of the high-speed rolling mill are the stable and reliable operation under high-speed and high-impact conditions; and have a long fatigue life. The high-speed rolling mill bearing has strong wear resistance; it can be used in high-speed rotating operation. .
Rolling mill bearings are available in four rows of tapered roller bearings and double row cylindrical roller bearings. Normally, coarse and medium rolling mills use imported four-row tapered roller bearings; finishing mills use double row cylindrical roller bearings; horizontal rolling mills and lead The hammer mill uses the same type of bearing.
Regardless of the four-row tapered roller bearing; it is still a double row cylindrical roller bearing; its basic layout is similar to that of a conventional rolling mill bearing; however, the depiction of each part fully considers the problems of smoothness and heat dissipation; that is, the inner ring and the outer ring, Spacers (for four-row tapered roller bearings), cages, rollers (for double-row cylindrical roller bearings) have many slots, holes, etc. This way; grooves, holes make smooth, heat dissipation channels and The bearing seat and the passage on the roller form a firm smooth and heat-dissipating system; together with outstanding sealing equipment, the bearing can operate stably in high-speed and high-pressure conditions.
After investigation and test analysis; the outer surface of the raceway of the high-speed rolling mill bearing, the outer surface of the rib, the surface of the roller and the surface of the roller are all smaller than the ordinary rolling mill bearings.
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