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Self-lubricated bearings wide temperature range, the content of the solid lubricant material is sufficient and uniform release, and having good self-lubricating properties and bite, can effectively protect the journal, to achieve the purpose of durable use. Suitable for high temperature, low-speed, heavy-duty, dust, water shower and shock and vibration environment can be widely used in mining machinery, metallurgy, petroleum, chemical, food, textile, paper making, printing and dyeing machinery and equipment rolling and sliding bearing parts.
Aluminum electrolysis cell to produce aluminum liquid sucked out by vacuum ladle poured into the mixing vessel, after ratio and slag to flow into the aluminum ingot casting machine casting, molding solid called ingots, production of aluminum ingots stacker Stacking. In order to improve production efficiency, the aluminum ingot before molding with a large number of cooling water cooling, cooling water released to the enormous heat in the cooling process in the molten aluminum, to produce hot water vapor.
Casting machine SKF bearings in the environment of high temperature and water vapor bearing grease lubricated, added grease a relatively short period of time because of the high temperature melt overflow remove, maintenance difficulties, the device surface hygiene swabbing difficulty. Steel bearings in a hot, humid environment is very susceptible to corrosion rust, the failure rate is very high, the high cost of equipment maintenance, equipment operation often plagued by the following two problems.
Oil operation is difficult to achieve high-temperature continuous operation pull ingot casting machine, ingot shift, then ingots, turned spindles and other devices are installed in the unit housing, each rotating bearing on the design of facilities inject grease into the grease nipple on a regular basis, oiling required parking to remove the shell, the gun oil pressure grease. Machine oiling up to 30 places, long-term operation and maintenance can not achieve this kind of complicated oiling operation, had to hand-held dilute oiler with spraying in the operation of the bearing sleeve external lubricating oil is difficult to enter the bearing friction between the part of SKF bearings in a state of friction.
High ambient temperature, not suited to the casting machine Rolling molybdenum disulfide grease grease lubrication is considered to be high-temperature grease, we know that it is based on oil, petroleum products, plus a small amount of high-temperature molybdenum disulfide additive, the temperature limit is 120 ° C. According to the the measured casting machine bearing operating temperature up to 200 ° C, have gone far beyond the grease temperature limit.
In such high temperature conditions, the grease base oil thins gradually evaporated, the remaining carbon residue, molybdenum disulfide, dust mixed into a solid block of solidified SKF Bearing holder, not only loses its lubricating effect also impede the normal operation of the rolling bearing and wear out quickly, up to 2 weeks you have to stop, remove the bearing cleaning with a new grease.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 32220U NTN | 100 | 180 | 46 |
| 30220U NTN | 100 | 180 | 34 |