| Plane deviation of mounting bracket P (mm) | ||||
|---|---|---|---|---|
| Raceway center diameter | Plane deviation of mounting bracket P (mm) | |||
| DL(mm) | single row four ball | double row ball | cross roller | |
| ~1000 | 0.15 | 0.2 | 0.1 | |
| >1000~1500 | 0.19 | 0.25 | 0.12 | |
| >1500~2000 | 0.22 | 0.3 | 0.15 | |
| >2000~2500 | 0.25 | 0.35 | 0.17 | |
| >2500~4000 | 0.3 | 0.4 | 0.2 | |
| >4000~6000 | 0.4 | 0.5 | 0.3 | |
| >6000~8000 | 0.5 | 0.6 | 0.4 | |
Application principle of slewing bearing
The main function of the slewing bearing under the cab is to fix the cab and drive the cab to rotate. The motor or reducer drives the gear to rotate, the gear drives the gear connected to the slewing bearing to rotate, and drives the slewing bearing to rotate, or the gear on the motor shaft directly drives the slewing bearing to rotate, thereby driving the drill pipe installed on the slewing bearing to rotate.
Gear Heat Treatment
Special heat treatment design is carried out according to the different needs of specific industries for gears, mainly including induction single-tooth quenching and induction-type integral tooth quenching. Single tooth quenching is divided into tooth surface quenching and tooth surface and root quenching. After quenching, tempering treatment is carried out to make the surface hardness and the depth of the hardened layer meet the design standards. The most advantageous process is the special process of integral tooth quenching, which can improve the transmission efficiency and increase the wear resistance and impact resistance of the tooth surface, so as to meet the needs of customers.
The raceway heat treatment of the slewing bearing is realized by induction heat treatment technology. Longwei transmission Slewing Bearing has advanced heat treatment equipment (processing equipment and testing equipment) and scientific processing technology, so that the depth and hardness of the hardened layer conform to JB /T2300-2018 slewing bearing standard.
Technical parameters required for slewing bearing selection as below:
1).Slewing bearing load (Includes axial load, radial load and tilting moment) Â
2). Percentage of each load and its occupation time
3). Speed or number of revolutions of the slewing bearing under each load
4).Circumferential force acting on the gear
5).Dimensions of the slewing bearing
6). Other operating conditions
The material, compressive property, abrasive resistance and hardness of balls will affect the load condition and service life of slewing bearing. Longwei  slewing bearing Co., Ltd purchase balls from suppliers with high quality, and we will conduct test for the compressive property, abrasive resistance and hardness to eurens the quality of balls will meet the requirement.
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. |
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.
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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