Rothe erde slewing bearings are for decades state of the art technology and practiceproven all over the world, in a wide variety of applications. Our rothe erde profile bearings are a specific type of ball bearing slewing rings. Manufacturers of rothe erde ball bearing and suppliers of. They have proved themselves particularly where bearings are subjected to high radial forces and moderate axial and tilting moment loads they are suitable for applications with uniform running free from. Qibr professional bearing manufacturer, since 2002, produces 4 types of more than 6,000 kinds of bearings, supports russian standards, american standard, european standard and other international mainstream standards, and can also be individually designed and customized according to customer needs. Series 2100 bearings are fourpoint contact slewing. Rothe erde bearings bearing technology tailored to requirements. In addition to a variety of products, our customers appreciate the applicationspecific engineering and outstanding quality. Montaje lubricacion mantenimiento mlm 1 rothe erde. These nextgeneration split roller bearings are renowned for their ability to reduce downtime, resulting in increased production. Threedimensional models of all ht series gearless, internal gear, and external gear slewing. Slewing rings category sponsors schaeffler group usa inc schaeffler north america is responsible for the engineering, production, sales and marketing for the ina, luk, fag and barden brands throughout the united states, canada, mexico, central america and the caribbean. More than 1 million slew bearings produced and sold all over the world since 1969. November 2011 more specifically, and for larger bearings, roth erde list the following information table 1.
Pdf modelling of rollers in calculation of slewing bearing. Download 3d models of popular slewing ring bearings. They should always be transported and stored in horizontal position. Assembly maintenance examination of operating safety a slewing bearing can be optimally maintained by trained personnel. General technical information slewing bearings rev2. Permissible increase in bearing clearance for single row ball bearings. Largediameter antifriction slewing rings rotek incorporated rotek incorporated 1400 south chillicothe road. Rotek is the north american manufacturing leader of slewing bearings. Throughout the world, rotek slewing bearings and forged rings are installed. Gh induction slewing bearing hardening gh induction. Many of the cranes needed in the construction and operation of offshore platforms, drill ships and supply vessels are equipped with rothe erde bearings.
Furthermore, rotek is a market leader for seamless forged steel and nonferrous metal rings. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. The bearing raceways, in conjunction with the rolling elements and cages or spacers, are designed to accommodate loads acting singly or in combination, and in any direction. Under the psl brand, thyssenkrupp rothe erde manufactures a wide range of single, double and multirow tapered, cylindrical, toroidal and spherical roller bearings. Rothe erde slewing bearing standard rd800manufactutere of. Wcb slewing bearing ring swing gear turntable production track assembly test duration. After installing the slewing bearings, we put it on the vertical lathe to check its rotation and noise.
Our service team can support the bolt tightening process. Standard serie s kd 210 singlerow ball slewing rings standard bearing type 21, standard number of bolt holes 1 without gear 2 with external gear 3 with internal gear. Rotor bearing rothe erde slewing ring bearing as threerow roller bearing with special seals the yaw bearing yaw or azimuth bearings. This is the only way to guarantee continuous, safe and trouble free. A thyssenkrupp technologies company rothe erde tk rothe erde rothe erde individual details of this information shall only then be considered a quality resp. Rothe erde manufactures slewing bearings up to 8,000 mm diameter as monobloc systems and segmental bearings in larger dimensions. Slewing bearings are machine elements which absorb all axial and radial forces, and tilting torques which result from these, in one single latching, readytoinstall bearing unit. The smallest have an inner diameter of 120, the largest an exterior diameter of 3,400 millimetres. Rotek, a member of the rothe erde group, is the north american leader in the engineering, manufacture, service and support of large diameter slewing bearings and seamless forged rings. Erde are then given on how to adjust the models so that a problemfree combination with. Rothe erde manufactures slew ing bearings up to 8,000 mm diameter as monobloc systems and segmental bearings in larger dimensions. Skf slewing bearings stock range recommended range ball design roller design lshape range ball design other standard items ball design roller design please note that stock items included in this. All of our slewing bearings can be manufactured with internal gears, external gears or without gearing. A catalogue capacity of slewing bearings article pdf available in mechanism and machine theory 58.
The practical training is designed in such a way that you can carry out the necessary work independently afterwards. Rotek slewing bearings are machine elements which absorb all axial and radial forces and the resulting tilting. Rotek incorporated, a thyssenkrupp company and member of the thyssenkrupp rothe erde group, is the north american leading manufacturer of slewing bearings including ball and roller slewing bearings and wirerace slewing bearings. At the execution of the securing as a blind threaded hole, the thread is free drilled in most cases, to.
The current product range includes slewing ring bearings. Rothe erde slewing bearings are manufactured in germany. Special gearing, such as helical and worm gears, are also available upon request. Thyssenkrupp rolman world leading name in bearings. The mini mum length of engagement must be guar rothe erde.
Rotek series 3000 units are an evolution of the classic fourpoint contact slewing bearing design, featuring inductionhardened raceway construction, the highest degree of. Jcb slewing bearing luoyang jcb bearing technology company. We distinguish between two types of profile bearings firstly, l profile bearings which are bent and welded, and secondly, the. As an affiliate of rothe erde, service is available virtually anywhere. Setting the backlash the backlash must be set on the teeth marked in green, between the drive pinion and bearing. Further information and explanations can be found in the instruction manual. Rothe erde slewing bearing standard rd800 cross roller slewing rings with external gear drawing no. Rothe erde disposes of the largest testing facility for slew ing bearings worldwide and its intensive and specific research and development work provides the. M16 940 1100 660form16 metric isothread din as a3 fm fm fm n nm nm n nm nm n nm nm ma ma ma ma ma ma. Stock includes single types of ball bearing slewing rings, for example, turntables and profile bearings, amongst others. In addition we manufacture a full range of slewing. Engineers can now view and download 3d drawings of kaydon ht series slewing ring bearings on the kaydon corporation bearings division website. We distinguish between two types of profile bearings firstly, l profile bearings which are bent and welded, and secondly, the seamlessly rolled and subsequently profiled rings. Rothe erde turntables are produced to exacting standards.
Login or register to access drawings, product catalogs, and realidesign software. Rotek slewing bearings are machine elements which absorb all axial and radial forces and the resulting tilting moments in a single selfretaining and readytoinstall unit. The invention relates to a roller bearing, in particular center free slewing bearings, consisting of one or more parts trained inner ring 1 and outer ring 2 and arranged between them, rolling on raceways. If it is not possible tofully tighten the bolts during this period,manual tightening will. Rothe erdeslewing bearingsrothe erde largediameter antifriction. Permissible increase in bearing clearance for single row ball bearings track dia mm ball diameter mm 20 25 30 35 40. With smaller bearings and easily accessible mounting space, it may. Larger bearings segmented and flexible in terms of diameters up to 25m. The operative areas are important constituents of this. Panjiva uses over 30 international data sources to help you find qualified vendors of rothe erde ball bearing.
There is no excerpt because this is a protected post. A flat contact surface free from grease and oil is required for the bearing installation. Skf manufactures standard and customized slewing bearings. Stock includes single types of ball bearing slewing rings, for example, turntables and profile bearings. Slewing rings and turntable bearings manufacturers and. Skf slewing bearings stock range recommended range ball design roller design lshape range ball design other standard items ball design roller design please note that stock items included in this leaflet do not represent our complete range and that new items may be added in the future. Rothe erde turntables technology madetomeasure our pr oduct range comprises ballbearing and rollerbearing slewing rings, turntables and seamless rolled rings. General technical information slewing bearings support structures design of the support structure the slewing ring has a limited axial stiffness. Slewing bearing is a large sized bearing specifically designed to accommodate oscillation movement. Stock levels are based on our experience and dependent on fluctuations in demand.
Slewing bearing market forecasts from 2018 to 2023. Qibr provides more than 6000 kinds of bearing design and. To date, liebherr has manufactured over 350,000 slewing ring bearings for use around the world. Rothe erde slewing bearing loyal 9o3r1608501017 triplerow without gear our 0. Setting the backlash the backlash the drive pinion and bearing. All our activities from application engineering to design and production including comprehensive customer service are based on the. It must be mounted on a machined supporting base, ensuring sufficient stiffness with regard to the loads to be transferred. Rotor bearing rothe erde slewing ring bearing as threerow roller bearing with special seals the yaw bearing yaw or azimuth bearings orient the nacelle to the direction of the wind and can be provided with outer or inner gearing. Deepgrooveball bearings fourpoint contact ball slewing rings linear bearings needleroller bearings plain bearings products rothe erde slewing bearing rothe erde slewing ring selfaligningball bearings. Rothe erde slewing ring bearings meet the most stringent requirements. In addition to the theoretical part, we also offer practical training courses to prepare users for optimum maintenance of our slewing bearings. For this purpose, we accom pany and check the process of pretight ening screws including provision of tools. Technical data sheet rothe erde large diameter slewing bearing.
This is the only way to guarantee continuous, safe and trouble free operation. We at thyssenkrupp rothe erde gmbh are the leading global manufacturer of slewing bearings. Rothe erde offers an extensive slewing bearing service see publication rothe erde slewing bearing service or. De102006056186a1 roller bearings, in particular center. The diversity of bearing applications in offshore technology demands continuous innovative input from the design engineer. Thus, they are an exceptionally economical edition in terms of storage. The mini mum length of engagement must be guar rothe erde 8 installation lubrication maintenance ilm.
If the limiting surface pressure is exceeded, washers of the appropriate size and strength must be pro vided. Transport and handling slewing bearings, like any other part of a machine, require careful handling. Bearing screw connection the high expectations on quality and ser vice life of rothe erde slewing bearings also requires efficient handling of screw connections. Rothe erde has been a long time supplier of slewing bearings for macgregor. Seamless rolled rings up to 8,000mm and onepiece slewing bearings with diameters of up to 10,000mm. Single row ball slewing bearing with external gear applied for aerial platform. The seal concept is also configured for each individual case of use, and takes account of particular environmental conditions, such as particularly saline or. In addition, we also hold a selection of standardised slewing rings in stock.
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