Application of oil and gas lubrication in rolling mill bearings
Oil-gas lubrication is a new type of lubrication technology, which has incomparable advantages over traditional single-phase fluid lubrication technology. It meets the working conditions of high speed, heavy load, high strength, high stiffness and continuous rolling of steel rolling mills. Correct lubrication method and good sealing are one of the most effective methods to extend […]
Causes and Countermeasures for Burning of Oil Film Bearings in Roll Boxes of High-Line Finishing Mill Units
In order to analyze the burning problem of the roller box of the finishing mill and find out its reasons, a series of modifications and countermeasures were adopted for the water inlet of the roller box of the finishing mill and the lubrication of the oil film bearing. The assembly management and standardized operation of […]
Research and improvement on failure phenomenon of short stress line Φ350 rolling mill bearings
The failure phenomenon of short-stress Φ350 rolling mill roll bearings is analyzed. Aiming at its causes, the aspects of roll cooling, bearing sealing, bearing lubrication, rolling mill bracket, cardan shaft vibration, bearing seat structure and bearing assembly were studied and analyzed. Corresponding improvement methods were proposed, which played a good role in improving the failure […]
Analysis of the causes of burnt damage of the operating side bearing of the work roll of the aluminum foil rolling mill
In view of the frequent burning of the work roll operating side bearings in the 1550 aluminum foil rolling mill, the reasons for the failure of the work roll bearings were analyzed. Targeted countermeasures and plans were formulated to effectively reduce the abnormal downtime of the rolling mill, eliminate equipment fire hazards, and ensure the […]
Four-row tapered roller bearings with single-side sealing for medium and heavy plate rolling mills
The sealing ring and double humiliation structure are used to prevent foreign matter such as iron oxide scale and cooling water from entering the bearing and the leakage of lubricating grease, so as to extend the service life of the bearing, protect the environment, save energy and reduce consumption. Keywords: rolling mill bearings; sealed bearings; […]
Measures to extend the service life of roll bearings in bar and wire chuck rolling mills
This paper introduces the technical measures taken to extend the service life of the roll bearings in the selection, assembly and use of the Bagang Bar Line small unit rolling mill, which not only greatly reduces the number of bearing burns but also reduces bearing consumption. Keywords: roll bearing; life; assembly Question raising There are […]
Analysis of work roll rod system and bearing life evaluation of 3500 medium and heavy plate four-high rolling mill
The four-row tapered roller bearings of the work rolls of the 3500mm medium-thick plate four-high rolling mill bear both radial and axial forces. Its working condition is to withstand the over-balanced force of the upper roll system, or the roll bending force when flatness control is required, as well as the axial force on the […]
Application analysis of oil and gas lubrication technology for rolling mill work roll bearings
This article introduces the characteristics and key points of installation, operation and maintenance of the oil and gas lubrication system of the work roll bearings of a cold rolling mill, and proposes solutions to common faults during operation. Keywords: cold rolling mill; work roll bearing; oil and gas lubrication The CDCM unit of a cold […]
Finite element analysis of four-row tapered roller bearing cage of vertical roller mill
In response to the fracture accident of the cage of the four-row tapered roller bearing in the roll neck of the vertical roller mill of a rolling plate factory, a finite element model of the bearing system was established; the contact unit was used to establish a surface-to-surface contact pair at the important contact positions […]
Shape control processing technology of large thin-walled tapered roller bearing outer ring
In view of the problem that the outer ring of large thin-walled tapered roller bearings is easily deformed during processing, the characteristics and causes of deformation during turning, heat treatment and grinding were analyzed. Taking the outer ring processing of L555249/L555210 large thin-walled tapered roller bearings as an example, the shape control processing technology of […]
