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Works of thrust ball bearings thrust ball bearings is a lubricant as a lubrication medium radial sliding bearing its working principle is: the rolling process, due to the role of the rolling force, forcing the roller shaft journal mobile thrust ball bearing center and the center of the journal of the eccentric, the gap between the two regions in the thrust ball bearings and journal, a called divergent area (larger gap gradually along the direction of rotation of the journal), the other is called the convergence zone (along the the journaled rotating direction gradually decreases).
When rotating journal viscosity lubricating oil from the divergent region into the convergence zone, along the direction of rotation of the journal bearing clearance from large to small, the formation of an oil wedge, so that oil pressure. The Heli is thrust ball bearings, thrust ball pressure points along the rolling direction capacity. When the rolling force is greater than the carrying capacity, the journal centers and thrust ball bearing center between eccentricity increases. In the convergence region bearing gap journalled rotation direction becomes steeper, the minimum thickness of the thrust ball becomes smaller, larger pressure within the thrust ball bearing capacity becomes larger, until it reached equilibrium with the rolling force journal center is no longer offset thrust ball bearings and journal completely lubricants separated, the theoretically formed a full fluid lubrication.
Know from the works of the thrust ball bearings thrust ball bearing system is one of the most important parameter is the minimum thickness of the thrust ball. If the minimum value of the thickness of the thrust ball is too small, too large particles of the metal impurities in the lubricating oil, the external dimensions of the metal particles is numerically greater than the minimum thickness of the thrust ball, metal particles, with the lubricating oil by minimizing the thickness of the thrust ball at, like metal contact will serious bush-burning. In addition, if the minimum thickness of the thrust ball value is too small, when the heap of steel and other accidents, journal and thrust ball bearings can easily lead to metal contact caused by bush-burning. Structure size and materials of the size of the minimum thickness of the thrust ball value and thrust ball bearings, the related machining accuracy and thrust ball bearing system installation accuracy, lubricants and rolling force size of related.
Thrust ball bearings Thrust ball bearing oil-water disadvantages and solutions should improve sealing structure as much as possible to prevent the water. Near water part thrust ball bearings, especially high-speed wire rod mill thrust ball bearings, due to its dynamic seal state influent is inevitable. Water into the thrust ball bearing oil, certain additives hydrolysis failure. And possibly the formation of turbulence, destruction of the normal operation of fluid lubrication, causing abnormal wear easily corroded equipment, oil emulsification and deterioration of water points, oxidation resistance and anti-foam. Further, the generated oxidation products and sludge in the water with the oil in use, forming a gummy oil group, may clog filters. Only improve the abrasion resistance of the seal structure and the sealing gasket for improvement.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| LM2920 NSK | 25 | 38 | 20.2 |
| LM283730 NSK | 22 | 37 | 30.2 |