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Slewing Bearing Used for High-Speed Capstans1
Slewing Bearing, Slewing Bearing Ring, Slewing Ring
Nanjing Suntay Steel Co., Ltd.
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Product Description Slewing ring bearing is also called slewing ring, slewing bearing, turntable bearing, and rotary bearing. Slewing ring bearing is a bearing that able to bear axial load, radial load and overturning torque. Under normal circumstances, slewing ring bearings have their own mounting holes, lubricant holes and seal holes, to meet the different needs of the various host working under the various conditions; On the other hand, slewing ring bearing itself has characteristics of compact structure, guide rotating convenient, easy to install and maintaining easily. 1.Gear Heat Treatment2. Structure2.1 Slewing ring bearings have different types as per different structures, here below is what we offering now: Single row ball slewing ring bearings Double row ball slewing ring bearingsCrossed roller slewing ring bearings Three row roller slewing ring bearings Flange slewing ring bearings2.2 The above slewing ring bearings can also be divided into three different types as per different transmissions:Slewing ring bearings with no gearSlewing ring bearings with external gearSlewing ring bearings with internal gear3. Features: Slewing ring bearings have more features: compact structure, reliable guide, simple installation, and easily maintenance 4. Application: Slewing ring bearings can be widely used in lifting & transport machinery, mining machinery, construction machinery, port hoisting machinery, port oil transfer equipment, onshore and offshore crane, excavator, concrete machine, paper machine, plastic and rubber machine, weave machine, steel plant, electronic power plant, wind power generator, other construction and industry machines or equipments and other large rotary deviceSingle row ball slewing ring bearing:1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. The single row ball slewing ring bearing is composed of 2 seat-rings. The balls contact with the circular race at four points, via which the axial force, radial force and resultant moment may be born simultaneously.2.2. StructureSlewing ring bearings have different types as per different structures, here below is what we offering now:Single row ball slewing bearing has three different types:Single row ball slewing bearing with no gear Single row ball slewing bearing with external gear Single row ball slewing bearing with internal gear Single row ball slewing ring bearing1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. The single row ball slewing ring bearing is composed of 2 seat-rings. The balls contact with the circular race at four points, via which the axial force, radial force and resultant moment may be born simultaneously. 2. Structure Slewing ring bearings have different types as per different structures, here below is what we offering now:Single row ball slewing bearing has three different types:Single row ball slewing bearing with no gear Single row ball slewing bearing with external gear Single row ball slewing bearing with internal gear 3. FeaturesSingle row ball slewing ring bearings have following features:Compact in structure and light in weight. 4. Application: Single row ball slewing ring bearings are widely used in slewing conveyers, welding arm and positioned, medium duty cranes, excavators and other engineering machinesDouble row ball slewing ring bearing:1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. The double row ball slewing bearing has three seat-rings. The steel balls and the retainers may be directly arranged into the upper and lower racers. Two rows of steel balls with different diameters are fitted according to the force. Such open type fitting is extraordinary convenient, the loading angels at upper and lower races are 90°which can carry both of the axial force and capsizing moment. When the radial force is larger than 1/10 of the axial force, the races should be newly designed. 2. Structure:Double row ball slewing bearing has three different types:Double row ball slewing bearing with no gearDouble row ball slewing bearing with external gear Double row ball slewing bearing with internal gear 3. Features:Double row ball slewing ring bearings have following features:Larger dimension of axial and radial and compact structure. 4. Application:Double row ball slewing ring bearings are widely used in Tower cranes which require working radius over medium range, auto crane and loading (unloading) machinery. Double row ball slewing ring bearing:1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. The double row ball slewing bearing has three seat-rings. The steel balls and the retainers may be directly arranged into the upper and lower racers. Two rows of steel balls with different diameters are fitted according to the force. Such open type fitting is extraordinary convenient, the loading angels at upper and lower races are 90°which can carry both of the axial force and capsizing moment. When the radial force is larger than 1/10 of the axial force, the races should be newly designed. 2. Structure:Double row ball slewing bearing has three different types:Double row ball slewing bearing with no gearDouble row ball slewing bearing with external gear Double row ball slewing bearing with internal gear 3. Features:Double row ball slewing ring bearings have following features:Larger dimension of axial and radial and compact structure. 4. Application:Double row ball slewing ring bearings are widely used in Tower cranes which require working radius over medium range, auto crane and loading (unloading) machinery.Crossed roller slewing ring bearing1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. With the cross roller Ring, cylindrical rollers are arranged crosswise, with each roller perpendicular to the adjacent roller, in a 90° groove, separated from each other by a spacer retainer. This design allows just one bearing to receive loads in all directions including, radial, axial and moment loads. Since the Cross-Roller Ring achieves high rigidity despite the minimum possible dimensions of the inner and outer rings, it is optimal for applications such as joints and swiveling units of industrial robots, swiveling tables of machining centers, rotary units of manipulators, precision rotary tables, medical equipment, measuring instruments and IC manufacturing machines. 2. Structure:Cross roller slewing bearing has three different types:Cross roller ball slewing bearing with no gear Cross roller ball slewing bearing with external gear Cross roller ball slewing bearing with internal gear 3. FeaturesCross roller slewing ring bearings have following features:1. High precision: cross roller bearings can be made high precision bearings, at P4, P2.2. High rigidity: These series roller bearings are with preload.3. High load capacity: This series roller bearing can support axial load, radial load, and tilting load.4. Small volume: this series roller bearing can save space for the machine. 4. Application Cross roller slewing rings are widely applied in the precision rotary table, rotary joint of manipulator, medical equipment, and measuring instrument etcTriple row roller slewing ring bearing 1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. Three row roller slewing ring bearing has three seat-rings, which separate the upper, lower and radial raceway, via which the load of each row of the rollers may be specified. Thus it can carry different load simultaneously and its load capacity is the largest one of the four types 2. Structure:Triple row roller slewing bearing has three different types:Triple row roller slewing bearing with no gearTriple row roller slewing bearing with external gear Triple row roller slewing bearing with internal gear 3. Features Triple row roller slewing ring bearings have following features:Larger axial and radial dimension, compact structure 4. ApplicationTriple row roller slewing rings are widely used in heavy-duty machines which require large working radius, such as bucket-wheel excavators, wheeled cranes, ship cranes, ladle turret, auto cranes etc. Flange Slewing Bearing1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. Flange slewing bearing is a special slewing ring bearing, it can have one flange in the outer ring, or one flange in the inner ring, even it can have one flange in both inner ring and outer ring. 2. Structure:Flange slewing bearing has three different types:Flange slewing bearing with no gearFlange slewing bearing with external gear Flange slewing bearing with internal gear 3. Features Flange slewing bearings have following features:Compact structure and easily installment. 4. ApplicationFlange slewing bearings are widely used in tow truck, and other applications are the same as slewing bearings, such as lifting & transport machinery, mining machinery, construction machinery, excavator, concrete machine, paper machine, plastic and rubber machine and steel plant. Excavator Slewing BearingExcavator slewing bearing is a special slewing ring bearing as per its applications. And it is a very important part for excavators, we can supply excavator slewing bearings for both second-hand excavators for maintenance and new excavators. 2. Structure:Excavator slewing bearing are usually made as per single row ball slewing bearing structure, and most of them are internal gear types, but some are external gear types. 3. Features Excavator slewing bearings have familiar features as single row ball slewing ring bearings.Compact structure, light weight and easily installment. 4. ApplicationExcavator slewing bearings are widely used for all brands of excavators, such as Hitachi, Kobelco, Sumitomo, Doosan, Hyundai, Samsung, , Daewoo, Kato, Volvo and so on.The suitable temperature and working environment for slewing bearing The slewing bearing produced by our company can work normally at -300C.~+ 700C. If users need to adapt to lower or higher temperature support, our engineering technicians can design for you. If the slewing bearing are used in particularly hostile environment, such as Marine c1imate, dust or abrasive particles (dust, cement, coal powder) etc. Special sealing rings, protective devices, and proper oil paths must be selected. Therefore, we hope users to do the daily maintenance work to make your slewing bearing function normally The suitable temperature and working environment for slewing bearing The slewing bearing produced by our company can work normally at -300C.~+ 700C. If users need to adapt to lower or higher temperature support, our engineering technicians can design for you. If the slewing bearing are used in particularly hostile environment, such as Marine c1imate, dust or abrasive particles (dust, cement, coal powder) etc. Special sealing rings, protective devices, and proper oil paths must be selected. Therefore, we hope users to do the daily maintenance work to make your slewing bearing function normally Installation of slewing bearing 1.Handling and transportation .The slewing bearing must be handled carefully.Transportation and storage of slewing bearing should be held horizontally and stored in a dry room.For hoisting lift bolt is suitable and please move it horizontally , do not hit anything, especially the direction collision .The slewing bearing surface is covered with antitrust agent, whose rust proof life is usually six months For those whose storage life of more than six months (such as accessories) should take the antitrust package or other storage measures again 2.Installing support requirements .Generally, install matching support adopts tubular structure , the cylinder's wall should be better aligned at the center of the raceway
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