Do you know what a slewing bearing is? The slewing bearing is a large-sized bearing with a special structure capable of simultaneously supporting a large axial load, a radial load, and an overturning moment, and a combination of functions such as support, rotation, transmission, and fixation. Everyone may have little contact with us, so I don't know much about it. But never mind, in order to let everyone have a new understanding of wheel bearings, Here I will introduce turntable bearing turntable bearing installation method and the role, I hope to be able to help in this area needs friends! Slewing bearing introduction The slewing bearing is a large-sized bearing with a special structure capable of simultaneously supporting a large axial load, a radial load, and an overturning moment, and a combination of functions such as support, rotation, transmission, and fixation. Under normal circumstances, the slewing bearing itself has mounting holes, lubricating oil and sealing devices, which can meet the different needs of various types of mainframes under various working conditions; on the other hand, the slewing bearing itself has a compact structure, guide rotation Easy to use, easy to install and easy to maintain, it is widely used in large-scale rotary devices such as cranes, mining machines, construction machinery, port machinery, wind power generation, medical equipment, radar and missile launchers. Slewing bearing basic structure Slewing bearings are usually composed of four parts: inner ring, outer ring, rolling element, and isolation block. Since the core components use slewing bearings, they can withstand both axial and radial forces. There are many forms, but the structure is basically the same. Slewing bearing material In general, 50Mn is used for turntable bearing rings, but 42CrMo is sometimes used to meet the requirements of special applications. Rolling body is generally selected GCr15SiMn. The types of retainers include integral, segmented, and isolated block types. Integral or segmented retainers use 20# steel or ZL102 cast aluminum alloys. The isolation block retainer uses polyamide 1010 resin, ZL102 cast aluminum alloy or QA110-3-1.5 aluminum bronze. Sealing ring material: oil-resistant rubber, fluorine-containing rubber, oil-resistant nitrile rubber. Slewing bearing structure commonly used single row, double row four point contact ball slewing bearing, double row angular contact thrust ball slewing bearing, cross cylindrical roller and crossed tapered roller slewing bearing, three row cylindrical roller slewing bearing, ball Columns, such as hybrid turntable bearings, come in different configurations. The above-mentioned types of bearings are divided into different structures such as non-toothed, external-toothed, and internal-toothed, depending on whether or not they are provided with teeth and gears. Slewing bearing installation Before installing the slewing ring bearing, it is necessary to inspect the mounting surface of the main machine. It is required that the supporting piece should have sufficient strength, the connecting surface should be machined, and the surface should be smooth and free of debris and burrs. For those that cannot be machined to achieve the required flatness, special plastics with high injection strength can be used as fillers to ensure the accuracy of the mounting plane and to reduce vibration. The slewing ring of the slewing bearing has a hardened soft band, which is marked with “S†on the end face of the ring. When installing, the soft band should be placed in the non-load zone or in the non-recurrent zone (the plug hole is always in soft Take place). When mounting the slewing bearing, radial positioning should be performed first, cross-tighten the mounting bolts, and check the rotation of the bearing. When tightening the bolt, there should be enough pre-tightening force, and the pre-tightening force should be 70% of the yield limit of the bolt material. Mounting bolts should be equipped with flat washers and spring washers must not be used. The role of the slewing bearing Its function is to connect the upper part and the lower part of the machine together, and at the same time to support the weight of the upper part and the load generated when the machine works, and to rotate the upper part of the machine with respect to the lower part (or rotate the lower part with respect to work). Editor's summary: The above is the introduction of the slewing bearing installation slewing bearing function, hoping to help friends who have this need! For more information, please continue to follow our website. You can also purchase more of your favorite products on Qijia Mall! Heating Installation Renovation Installation Hydroelectric Installation Construction Installation
The lawn lamp with beautiful style and simple shape can bring artistic feeling and atmosphere to the park or your garden.
Under the light, create a pleasant and comfortable atmosphere.
Outdoor Garden Light,Garden Lamp,Waterproof Garden Light,Lawn Lamp JINGYING , https://www.jingyingoptical.com
From the left and right are (the upper part): 1. Outer ring (with or without teeth) 2. Sealing band 3. Rolling body (roller or roller) 4. Filler from left and right are (lower part ): 1. Plug 2. Tapered pin 3. Inner ring (with or without teeth) 4. Isolation block or cage 5. Mounting hole (thread hole or light hole) 
