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FAQS

QWhat are THE APPLICATION AREAS OF SLEWING RING BEARING?

ASlewing bearing is widely used. Construction machinery is the place where slewing bearing is initially and most widely used, such as earth moving machinery, excavator, disintegrator, stacker reclaimer, grader, roller, dynamic compactor, rock drilling machinery, roadheader, etc. There are other concrete machinery: concrete pump truck, concrete mixing and distributing bar integrated machine, belt type distributing machine feeding machine: disc feeder, sand mixer; hoisting machinery: wheel crane, crawler crane, gantry crane, tower crane, fork crane, follow-up crane, gantry crane; foundation treatment machinery: impact reverse circulation drilling machine, rotary type Drilling rig, impact rotary drilling rig, rotary drilling rig, reverse circulation rotary drilling rig, positive circulation rotary drilling rig, long spiral engineering drilling rig, diving engineering drilling rig, static pressure pile driver, pile driver; engineering ship: dredger; special vehicle: bridge inspection vehicle, fire truck, window cleaning machine, flat plate beam carrier, aerial vehicle, self-propelled aerial platform; light industry machinery: beverage machinery, Blow bottle machine, packaging machinery, filling machine, rotary bottle machine, injection molding machine; marine crane: floating crane.

QWhat is THE BASIC MECHANISM OF SLEWING RING BEARING?

ASlewing drive is usually composed of worm, slewing bearing, shell, motor and other components. Because the core parts are rotary bearings, they can bear axial force, radial force and overturning moment at the same time. There are many forms, but the structure is basically the same. From left and right are (upper part): 1. Outer ring (toothed or toothless); 2. Sealing belt; 3. Rolling body (rolling ball or roller); 4. Oil nozzle from left and right are (lower part): 1. Plug; 2. Plug pin; 3. Inner ring (toothed or toothless); 4. Isolation block or cage; 5. Installation hole (wire hole or smooth hole)

QWhat are THE MAINTENANCE METHODS OF ROTARY BEARING?

AAfter 100 hours of continuous operation of the installed and put into operation turntable bearing, the pre tightening force of the mounting bolt shall be checked comprehensively. If the torque meets the requirements, repeat the above inspection every 500 consecutive hours. After the rotary table bearing is installed, it shall be filled with proper amount of grease, and the rotary bearing shall be filled at the same time to make the grease evenly distributed. Cloth. After working for a period of time, the bearing of rotary table will inevitably lose part of lubricating grease, so it will rotate in normal operation. The disk bearing shall be supplemented with lubricating grease every 50-100 hours.

QWhat are THE INSTALLATION STEPS OF THE SLEWING BEARING?

ABefore the installation of the rotary table bearing, the installation surface of the main engine shall be inspected first, and the supporting parts shall have sufficient strength. The joint surface shall be machined and flat without sundries and burrs. If the required flatness cannot be achieved by machining, Special plastics with high injection strength can be used as fillers to ensure the accuracy of installation plane and to reduce vibration. The ring of the rotary table bearing has a quenching soft belt area, which is marked with "s" on the end face of the ring. When the user installs it, he should The soft belt is located in the non load area or non frequent load area (the plug hole is always located in the soft belt). When installing the bearing of the rotary table, the radial positioning shall be carried out first, the mounting bolts shall be tightened crosswise, and the rotation of the bearing shall be checked. Sufficient pre tightening force shall be provided when tightening the bolt, and the pre tightening force shall be 70% of the yield limit of bolt material. Mounting bolts shall be equipped with It is forbidden to use spring washer for tempering flat washer.

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