Rotek: Your Best Source For Large Diameter Slewing Ring Bearings and Seamless Rolled Rings.

<body bgcolor="#FFFFFF"> <h1>Rotek – Services & Support</h1> <h3>Service That Goes Far Beyond Installation</h3> <p>Rotek provides a variety of after-the-sale services designed to help extend the service life of your slewing ring bearing. These services include installation/change out consultation and supervision, preventative maintenance programs, and in-use slewing ring bearing analysis.</p> <p>In addition, Rotek offers comprehensive refurbishment and replacement programs for slewing ring bearings which require removal from service. Our large diameter bearing refurbishment program includes: <ul> <li>Complete inspection, analysis and non-destructive testing to determine the feasibility and extent of remanufacturing required.</li> <li>Redesign of slewing ring bearing, if required. </li> <li>Cutting of gears to worldwide standards. </li> <li>Machining and grinding of gearing, raceways and mounting surfaces. </li> <li>Refitting of seals, rollers or balls, spacers and cages. </li> <li>Raceway reconditioning through induction hardening and heat treating.</li> </ul> <p>Rotek can provide these after-the-sale services for slewing ring bearings purchased from Rotek or any other supplier. Please contact us at 1-800-221-8043 for more information.</p> <a href="http://www.rotek-inc.com/english/e_index1.htm">Who we are</a><br> <a href="http://www.rotek-inc.com/english/e_index2.htm">Products</a><br> <a href="http://www.rotek-inc.com/english/e_index3.htm">Services</a><br> <a href="http://www.rotheerde.com/englisch/e_index4.htm">International</a><br> <a href="http://www.rotek-inc.com/english/content/e_cont2_1.htm"><b>Slewing Rings</b></a><br> <a href="http://www.rotek-inc.com/english/content/e_cont2_2.htm"><b>Seamless Rolled Rings</b></a><br> <a href="http://www.rotek-inc.com/english/content/e_cont2_3.htm"><b>Spec A Project</b></font></a><br> <h1>Rotek- Products</h1>  <h3>Rotek - Seamless Rolled Rings</h3><br><br> <h2>A Wide Selection Of Materials, Sizes And Configurations</h2><br><br> Rotek began production of seamless rolled rings in 1981 with the purpose of manufacturing quality rings for a variety of applications: <br> Gearing<br> Bearings<br> Slewing rings<br> Turbines<br> Transformers<br> Pipeline Flanges<br> Valves<br> Aviation and Astronautics <br> Rotary Kilns <br> Rotek’s ring rolling mill is an advanced manufacturing system capable of producing seamless rolled rings from 400 mm (16") to 4000 mm (158") in diameter with a weight range of 80 kg (180 lbs) to 4000 kg (8000 lbs). With an inventory stock of 75 different base materials, Rotek is able to meet nearly every customer request, and, meet delivery requirements too. Materials processed by Rotek include carbon, carbon alloy, stainless steel, aluminum alloys and high alloy steels.<br><br> Utilizing sophisticated heat treatment equipment, Rotek is able to obtain optimum processing and application properties in each specific material grade. Apart from standard processes like normalizing, annealing, soft annealing, austenitizing and tempering, other program-controlled processes allow precise adherence to specific time-temperature specifications for special ferrous and non-ferrous alloys. In addition to providing rings in the "as rolled" condition, Rotek’s manufacturing facilities include complete machining capabilities.<br><br> Quality assurances for all rolled ring products is supported by Rotek’s Total Quality Management system, certified by Det Norske Veritas as complying with ISO 9001 and ISO 9002.<br><br> For assistance in meeting the needs of your application, or for more information, contact the Rotek Rolled Ring Division at 1-800-221-8043 or submit the <a href="http://www.rotek-inc.com/english/content/e_cont2_3_b.htm">on-line Seamless Rolled Ring Design Worksheet.</a><br><br>  <h3>Online Rotek Design Worksheets</h3><br><br> <h3>Design Assistance Is Available From Rotek Without Charge</h3> Rotek's Application Engineering department is available, without charge, to assist design engineers in the design or selection of slewing rings and seamless rolled rings for their specific application.<br><br> To start the process, click the link for the specific product for your application, then simply follow directions on the worksheet page.<br><br> <a href="http://www.rotek-inc.com/english/content/e_cont2_3_a.htm">Slewing Ring Bearing Design Worksheet</a><br><br> <a href="http://www.rotek-inc.com/english/content/e_cont2_3_b.htm">Seamless Rolled Ring Design Worksheet</a><br><br>  <h3>Rotek Series 1000 Slewing Ring Bearings</h3><br><br> Series 1000 slewing rings are constructed with chrome alloy steel balls with no spacers and steel rings with unhardened raceways. This series provides a cost effective solution for applications requiring low-speed, bi-directional rotation of light loads.<br><br> Specifications:<br> RACEWAY DIAMETERS: 12" to 42"<br><br> Capacities:<br><br> THRUST: 610 to 35,000 pounds <br><br> MOMENT: Not recommended for moment loads. <br><br> RADIAL: Not recommended for radial loads. <br><br> GEARING: Furnished in gearless models only. <br><br> APPLICATIONS: Turntables are developed exclusively for installation in vehicle trailers. Fifth wheel for trailers.<br><br>  <h3>Rotek Series 2100 Slewing Ring Bearings</h3><br><br> Series 2100 units are four-point contact slewing rings with induction-hardened, raceways. Balls are chrome-alloy steel and separated by spacers to prevent ball-to-ball sliding friction. Series 2100 units are general purpose slewing rings for medium duty applications.<br><br> Specifications:<br> RACEWAY DIAMETERS: 13" to 57"<br><br> Capacities:<br><br> THRUST: 10,000 to 336,000 pounds <br><br> MOMENT: 25,000 to 368,000 ft-lbs. <br><br> RADIAL: 3,000 to 98,000 pounds <br><br> GEARING: Internally geared, externally geared or gearless models are available.<br><br> APPLICATIONS: Turntables, Small cranes, Industrial production equipment and Utility derricks.<br><br>  <h3>Rotek Series 3000 Slewing Ring Bearings</h3><br><br> Series 3000 units are an evolution of the classic four-point contact slewing ring design, featuring induction-hardened raceway construction, the highest degree of raceway wrap, and durable ball separators. Within the limits of their capacities, they offer an optimum combination of economy, reliability and durability.<br><br> Specifications:<br> RACEWAY DIAMETERS: Standard models from 12" to 180" Special order slewing rings up to 360" <br><br> Capacities:<br><br> THRUST: from 100,000 to 3,600,000 pounds <br><br> MOMENT: 20,00 to 8,300,000 ft-lbs.<br><br> RADIAL: 20,000 to 1,000,000 pounds Contact Rotek for load information on special order models. GEARING: Internally geared, externally geared and gearless models are available.<br><br> APPLICATIONS: Cranes and excavators, Stackers/reclaimers, Lift truck rotators, Industrial turntables, Capstans, Turnstiles, Mining equipment, Off-shore equipment, Wind generators and Medical nuclear cameras.<br><br>  <h3>Rotek Series 4000 Slewing Ring Bearings</h3><br><br> Series 4000 slewing ring bearings are built with greater internal clearance than the Series 3000 models. Advantages include lower frictional torque and the ability to function in mounting structures with less accuracy and rigidity than required for other style of bearingsbr><br> Specifications:br><br> RACEWAY DIAMETERS: Standard models from 12" to 180" br><br> Capacities:br><br> THRUST: from 100,000 to 4,200,000 pounds br><br> MOMENT: from 123,000 to 12,000,000 foot-pounds br><br> RADIAL: from 10,000 to 420,000 pounds br><br> GEARING: Internally geared, externally geared or gearless models are available. br><br> APPLICATIONS: Cranes and excavators, Stackers/reclaimers, Lift truck rotators, Industrial turntables, Capstans, Turnstiles, Mining equipment.br><br>  <h3>Rotek Series 5000 Slewing Ring Bearings</h3><br><br> Series 5000 slewing ring bearings are built with V-groove raceways providing two roller paths in each ring. By alternating adjacent rollers at right angles to one another, one-half of the rollers transmit loads in one direction with the other half transmitting loads in the other direction. The cross roller bearing design provides a higher theoretical dynamic capacity per unit size, greater stiffness, and a lower spring rate than a single roll ball slewing ring design.<br><br> Specifications:<br><br> RACEWAY DIAMETERS: Standard models from 12" to 120" <br><br> Capacities:<br><br> THRUST: from 80,000 to 2,700,000 pounds <br><br> MOMENT: from 16,000 to 6,700,000 pounds <br><br> RADIAL: from 16,000 to 800,000 pounds <br><br> GEARING: Internally geared, externally geared or gearless models are available. <br><br> APPLICATIONS: Excavators, Lift truck rotators, Industrial turntables, Capstans, Turnstiles, Mining equipment and Antennas.<br><br>  <h3>Rotek Series 6000 Slewing Ring Bearings</h3><br><br> Series 6000 slewing ring bearings are single-row, high speed radial ball slewing rings capable of raceway velocities of up to 3,000 feet per minute, with proper lubrication. These slewing rings feature exceptionally durable radial cages and are capable of sustained high-speed operation. High-speed operation requires selection based upon dynamic capacity limitations which impose more severe limits on loads than static capacity.<br><br> Specifications:<br><br> RACEWAY DIAMETERS: Standard models from 12" to 108" <br><br> Capacities:<br><br> THRUST: from 200,000 to 1,000,000 pounds <br><br> MOMENT: from 100,000 to 2,500,000 pounds <br><br> RADIAL: from 53,000 to 244,000 pounds <br><br> GEARING: Available in gearless models only. <br><br> APPLICATIONS: Log-debarking machines, Coil winders, Pay-off reels, High-speed capstans<br><br>  <h3>Rotek Series 10000 Slewing Ring Bearings</h3><br><br> Series 10,000 slewing ring bearings are built with three independent rows of rollers. Since all loads are transmitted directly to raceway surfaces, which are perpendicular to the load direction, the capacity of each rolling element and each raceway surface is utilized in the most efficient manner. <br><br> The three-row roller slewing ring bearing offers more capacity per unit size than any other Rotek bearing design and is inherently the stiffest style of construction. Frictional torque is lower than other styles under most load conditions.<br><br> Specifications:<br><br> RACEWAY DIAMETERS: Standard models are from 12" to 180". Special order up to 14 meters.<br><br> Capacities:<br><br> THRUST: from 100,000 to 17,300,000 pounds <br><br> MOMENT: from 20,000 to 63,000,000 foot-pounds <br><br> RADIAL: from 10,000 to 5,000,000 pounds Contact Rotek for load information on special order models. <br><br> GEARING: Internally geared, externally geared or gearless models are available.<br><br> APPLICATIONS: Off-shore equipment, Mooring buoys, Stacker/Reclaimers, Dockside cranes, Shipboard cranes, Tunnel-boring machines, Antennas.<br><br>  <h3>Rotek Series 15000 Slewing Ring Bearings</h3><br><br> The Series 15,000 is ideal for applications where it would be difficult or impossible to remove and replace the slewing ring. Raceway inserts and rolling elements are available in stainless steel. Supporting rings are available in a wide variety of materials, including steel, aluminum alloy and bronze. Wire-Race units are available in single row ball, two row roller and three row roller configurations. Lifetime lubrication is also available.<br><br> Specifications:<br><br> RACEWAY DIAMETERS: Standard models from 12" to 180". Special order up to 14 meters.<br><br> Capacities:<br><br> THRUST: from 80,000 to 2,700,000 pounds <br><br> MOMENT: from 16,000 to 6,700,000 pounds <br><br> RADIAL: from 16,000 to 800,000 pounds <br><br> GEARING: Internally geared, externally geared or gearless models are available. <br><br> APPLICATIONS: Radar antennas and Medical CT scanners.<br><br>  <h3>Rotek Series 12000 Slewing Ring Bearings</h3><br><br> Series 12,000 incorporates a row of rollers and a row of balls into the same unit. This combination of rolling elements is designed to handle small eccentricities at relatively high axial loads.<br><br> Specifications:<br><br> RACEWAY DIAMETERS: Standard models are 50" to 250" Special order slewing rings up to 360" <br><br> Capacities:<br><br> THRUST: up to 17,500,000 pounds <br><br> MOMENT: Up to 51,600,000 ft-lbs. <br><br> RADIAL: up to 775,000 pounds Contact Rotek for load information on special order models. <br><br> GEARING: Internally geared, externally geared or gearless models are available <br><br> APPLICATIONS: Mining equipment, Materials handing equipment<br><br>  <h3>Rotek Rotek Precision Slewing Ring Bearings</h3><br><br> Rotek offers precision units in single row ball, cross roller, and three-row roller configurations. Depending on raceway diameter and slewing ring configuration, critical feature size and fit specifications can be held in the following ranges: <br><br> Runout tolerances of the range of .0002" to .001" <br> Concentricities to within .0002" <br> Surface flatness to within .0002" <br> Parallelism to within .0002" <br> Bolt hole positions to .010" diameter <br> Gear precision equal to or exceeding AGMA 10 <br> Specifications:<br> RACEWAY DIAMETERS: 12" to 60" <br><br> Capacities:<br><br> Contact Rotek Application Engineering for information. <br><br> GEARING: Internally geared, externally geared and gearless models are available. <br><br> APPLICATIONS: Precision turntables and index tables, Robotics, Medical diagnostic equipment, Filling equipment, Radar and radio telescope antennae, Test stands and testing equipment<br><br> <a href="http://www.rotek-inc.com/english/e_index1.htm">Who we are</a><br> <a href="http://www.rotek-inc.com/english/e_index2.htm">Products</a><br> <a href="http://www.rotek-inc.com/english/e_index3.htm">Services</a><br> <a href="http://www.rotheerde.com/englisch/e_index4.htm">International</a><br> <a href="http://www.rotek-inc.com/english/content/e_cont1_1.htm"><b>Capabilities & History</b></a><br> <a href="http://www.rotek-inc.com/english/content/e_cont1_2.htm"><b>Contact Us</b></a><br> <a href="http://www.rotek-inc.com/english/content/e_cont1_3.htm"><b>Quality Project</b></a><br> <h1>Who We Are</h1>  <h3>Large Diameter Slewing Ring Bearings and Seamless Rolled Rings</h3> <p>Welcome to Rotek, a world leader in the engineering, manufacture, service and support of large diameter slewing ring bearing and seamless rolled rings.</p> <p>Rotek manufactures ball and roller type slewing ring bearings in single-row and multi-row designs; with internal or external gearing or gearless; in diameters from 12 inches to 50 feet; in a wide range of capacities, materials and seals. Many slewing ring bearings are available from stock or on short lead-times. <a href="http://www.rotek-inc.com/english/content/e_cont2_3.htm">Design assistance</a> from Rotek is available, without charge, for any application.</p> <p>In addition, we offer a variety of after-the-sale services and support programs, including bearing repair and on-site bearing inspection, designed to help extend the life of your large diameter slewing ring bearing.</p> <p>Rotek also manufactures seamless rolled rings in aluminum grades, carbon, stainless and alloy steels. All forgings are certified and traceable. Seamless rolled rings are produced in diameters from 16 inches to 158 inches and weights to 8,000 pounds.</p> <p>In 1999, Rotek completed the installation of a brand new ring rolling mill and refurbishment of the hydraulic press. These improvements give Rotek the ability to offer dimensionally consistent, competitively priced seamless rolled rings.</p> <p>At Rotek, we realize that today’s competitive businesses demand more than just products. That why, in addition to providing you with superior slewing ring bearings and seamless rolled rings, Rotek is committed to responsive service and on time delivery to better meet those expanding needs.</p> <p>Click on the buttons at the top of this page for details on all of Rotek's products and services, or call 1-800-221-8043 for more information.</p>  <h3>Rotek – Capabilities & History</h3> <h3>Rotek Design Expertise Provides Superior Solutions For Any Application</h3> <p>Since its founding in 1962, Rotek has been the leader in large diameter slewing ring bearings in North America. Rotek offers a unique combination of experience and technology in designing large diameter bearings and seamless rolled rings. We've designed and manufactured thousands of slewing rings for a wide array of applications: power cranes and excavators, radar equipment and antennae stations, tunnel boring machines, offshore cranes, machine tools, industrial robotics and medical diagnostic equipment. Our extensive experience combined with the use of sophisticated CAD/CAM technology enables us to accurately predict final product capabilities and performance. Rotek’s <a href="http://www.rotek-inc.com/english/content/e_cont2_3.htm">design assistance</a> is available through the on-line design worksheets on a no charge basis. Our team of application and design engineers will provide a preliminary design evaluation based on the application requirements you provide. Rotek’s experience in designing such a diverse range of slewing ring bearing and seamless rolled ring applications allow us to consistently deliver the most effective solution for your application.</p> <h3>Rotek’s integrated facilities provide complete manufacturing control.</h3> <p>We've complemented our application engineering experience with the latest in manufacturing systems and procedures. Rotek's fully integrated manufacturing facilities include two modern slewing ring plants and a state-of-the-art seamless ring rolling mill. Each facility utilizes advanced CNC and CAD/CAM technology, Total Quality Management disciplines, and Manufacturing Resource Planning (MRP II) systems. These fully integrated manufacturing facilities allow Rotek complete control over quality and scheduling, beginning with the raw materials and continuing through machining and assembly.</p> <h3>Worldwide support.</h3> <p>As a ThyssenKrupp Industries Company, one of Europe's largest corporate organizations, Rotek service is available virtually anywhere. With affiliated slewing ring manufacturers in Germany, Japan, Brazil, Spain, Italy and Great Britain, Rotek's service network is ready to solve any slewing ring service problem you or your customer might have -- wherever it may occur.</p>  <h3>Contacting Rotek</h3> <p>For more information regarding large diameter slewing ring bearings or seamless rolled rings, please feel free to contact Rotek at the address below.</p> <p>Rotek Incorporated<br> 1400 South Chillicothe Road<br> P.O. Box 312<br> Aurora, Ohio 44202<br> Telephone: 330/562-4000<br> Toll free: 1-800-221-8043<br> Fax: (Sales) 330/562-4620<br> Fax: (Engineering) 330/562-2709<br> Email: <a href="mailto:sales@Rotek-inc.com">sales@Rotek-inc.com</a></p>  <h3>Committed To Continuous Improvement</h3> <p>Rotek's Quality Management system has been certified by Det Norske Veritas, a leading registrar, as complying with <a href="http://www.rotek-inc.com/images/certificate2.jpg">ISO 9001</a> (will open a new window for printing) and <a href="http://www.rotek-inc.com/images/certificate1.jpg">ISO 9002</a> (will open a new window for printing). In addition, every aspect of our business is governed by the principles of Total Quality Management and continuous measurement and improvement.</p> <p>Overall, our quality standards are the highest in the industry. Rotek’s commitment to quality assures that the slewing ring bearings and seamless rolled rings we produce will perform well in the most challenging applications.</p> <a href="http://www.rotek-inc.com/english/e_index1.htm">Who we are</a><br> <a href="http://www.rotek-inc.com/english/e_index2.htm">Products</a><br> <a href="http://www.rotek-inc.com/english/e_index3.htm">Services</a><br> <a href="http://www.rotheerde.com/englisch/e_index4.htm">International</a><br> </body>