Steel girder transporter, a special vehicle for transporting reinforced concrete girder bridge decks prefabricated in prefabrication plants or bridge sites to bridge erection machines. Sub-track type and tire type, etc. It is mainly composed of dozens of driving wheels and driven wheels, frame, cab, manipulation control system, auxiliary devices, etc. Due to the heavy load (up to 1,000 tons), the height is required to be low to reduce the overall height of the bridge erection machine. It is the supporting equipment for bridge erection construction.
No active device is required to drive, and the upper bearing steel beam or concrete beam needs to be turned to generate a tangential direction force, which drives the slewing bearing to rotate, so that the upper end mechanism rotates, thereby turning the concrete beam.
Three row roller slewing bearing
It have three seat rings, the upper and lower raceways and the radial raceways are separated, so that the load of each row of roller can be determined accurately. Being able to bear all kinds of loads at the same time, it is the largest one of the four structural products with large axle and radial dimensions and firm structure. It is especially suitable for heavy machinery requiring larger diameter, such as bucket wheel stacker and reclaimer, wheel crane, marine crane, port crane, ladle turret and large tonnage truck crane. Heavy machinery and so on.
The slewing bearing can rotate independently in three directions; the slewing bearing has simple, compact and reasonable structure; and the slewing bearing has high cost performance, is convenient to maintain, and satisfies the requirements of accuracy, bearing and multi-function of the device
About LongweiÂ
Longwe Transmission slewing bearing team is committed to keep the spirit of continuous improvement and focus our strategy of strict quality control standards, quick response, prompt delivery and low price.We look forward to working on all of our customers’ growing demands. Our ability to optimize the bearing design for your specific needs is unparalleled and we will assist you throughout the design, manufacturing and implementation process.
Products type | 1.single – row four – point contact ball |
Special services | 1.slewing bearing design |
Business type | manufacturer,trading company |
Advantages | 1.ISO 9001:2008 certificate,12 years experience2.High qualified material,low MOQ,excellent quality,competitive prices, |
Material | 50Mn/42CrMo or as your requirements |
Package | 1.First lubricated, Second circled with plastic film,kraft paper,blue belt,then packaged inwooden case,last gathered in Wooden pallet.2 According to your requirements  |
Delivery time | 1.For general product , our delivery time need only 5 days is enough (goods in stock).2.If you have special technical requirements or need additional processing,we first rder need only 45 ys, if that is roller continuous order, our delivery time only need 35 ys.  |
Application fields | Mine machine, port hoisting machine, port oil transfer equipment onshore and offshorecrane,excavator,concrete machine,paper machine, plastic and rubber machine, weavemachine, steel plant, electronic power plant, wind power generator, other construction and industry machines or equipment. Â |
We supplied high quality product & good service to every end user and valued distributors all over the world. We’ve enjoyed a very good reputation up to now.
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Our manufacturing standard is according to machinery standard JB/T2300-2011, we also has been found the efficient Quality Management Systems(QMS) of ISO 9001:2015 and GB/T19001-2008. We devote ourselves to the R &D of customized slewing bearing with high precision,special purpose and requirements and has acquired certificate of China Classification Society .
If you have any questions, pls do not hesitate to contact us.
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FAQ :Â Â
1Â Â LW Slewing Bearing Heat Treatment
Heat Gear Slewing Bearings are in the majority of cases supplied with spur tooth. Stub teeth also is ok.There are two kinds of tooth hardening. They are normalizing and tempering, According to the different applications, there are two ways of quenching. They’re whole tooth quenching and single-tooth quenching. Single-tooth quenching can be divided into tooth surface & root quenching and tooth surface quenching.
2 . The Calculation of Slewing Bearing.
Static load capacity
The determined loads must be multiplied with a factor fstat allocated to the application. The product Fa’ or Mk’ must be below the static critical load curve of the selected bearing.
With regard to radial loads in load combinations
Fa = axial load
Fr = radial load
Mr = tilting moment
3 Protection Against Corrosion
We make Protection Against Corrosion on surface of bearing,and make couple of packing paper.
4.Customize.
Yes,we have professional technical terms.
5.Warranty:
General 1 year.Â
- Reliable reputation.
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