Shandong Xinkaite Bearing Co.,Ltd.
Unified Social Credit Code: 9137 1525MA3C 5428XP
Production Department
Address: Xu Village Industrial Garden, Gan Town, Guan County, Shandong
Tel: +86 635 5638235
Fax: +86 635 5638808
Mobile: +86 15563545668
Service Hotline: 4000 305204
Sales Department
Address: 314 Puli Mansion, Beixiaoxinzhuang West Street, Jinan City, Shandong
Tel: +86 15562637177
Fax: +86 531 87901699
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Email: xkte@xinkaite.com
What is the significance of spherical roller bearing grease for its stability?
Clicks:15330 Date:11-27
In general, the spherical roller bearing in the grease filling amount is always more than the actual demand is directly involved in the lubrication, frame and bearing cavity cover, and a rolling body formed in the peripheral contour. In this process, the temperature of the bearing rises rapidly due to the resistance of the excess grease.
Although most of the excess grease is squeezed out in the early days of operation, the grease that is attached to the raceway attachment may still be rotated between the rollers and the raceway. In the early stage of the bearing, most of the grease is quickly (less than one minute) to be rolled out of the raceway, while the accumulation of grease in the bearing along with the rotation of the body at the same time, a small amount of discharged. When the bearing temperature continues to rise, until the excess bearing grease is discharged, called grease collection phase, according to the factors of roller grease spherical bearing structure, the quality of filling amount, this time may last ten minutes, or even a few hours.
After bearing grease remaining completely expelled, leaving a small amount of grease in the rolling body raceway, and keep in touch with each other face frame, by wedge effect form a thin layer of grease film, normal to enter the bearing stage. At this point the temperature drops and reaches equilibrium. That is to say, the lubricating effect of long-term, mainly rely on this layer of grease film to bear. In addition, in the long-term operation of the bearing, the rolling body and raceway near the outline and the cage on the grease to be divided into a part of the base oil, flow into the raceway between, also has a supplementary role in lubrication.
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