Rotek: Your Best Source For Large Diameter Slewing Ring Bearings (ball bearings, roller bearings, wire race bearings, fifth wheel bearings, turntable bearings) and Seamless Rolled Rings( forgings, forged rings, profiled rings).

<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>