SYM Hoist & Tower Crane Equipment Co., Ltd.  

Product Name: Slewing Turntable Slewing Bearings Slewing Ring Model NO.: as your request Condition: New Application: Hoisting Machinery Type: Tower Crane Trademark: as customer request Transport Package: PVC Specification: 1 set Origin: China HS Code: 8431499900 Product Description slewing turntableSlewing bearings are large-sized bearings which can accommodate a combined load, i.e., radial loads and tilting moment.They are usually provided with holes for fixing bolts; internal, external or no gear; and lubrication holes and seals, which allowa compact and economical arrangement. In additon they often enable the elimination of many components necessary in theclassical bearing arrangement.We select the bst bearing steel as our slewing bearing raw material,our forging supplier is the same as SKF of Sweden,TIMKEN of the U.S.Schaeffler(LUK/INA/FAG)of Germany,NSK of Japan from Jiangyin Xingcheng Special Steel Works Co.,ltdGeneral:229-269HB:leadway;262-302HBThe higher of the hardness,The better of the steel rigidity,So thr slewing bearing possess higher loading capacity therefore the longer service lifeIn order to avoid excessive wear,high torque and stress concentrations.Leadway selects the best rubber seals on bearing to keep out debris and corrosion.Lubrication is another key to slewing bearing.when assembling,bearing are generally packed with a suitable grease for lubrication to reduce wear,and leadway use the better EP2 lithium grease.FAQ1.Q:Areyouafactoryortradingcompany?A:SEMRI Bearingisspecializedinmanufacturingandexportingbearings.Wehaveownfactoryandwarehouse.2.Q:CanIgetsomesamplesanddoyouofferthesamplefree?A:Yes,sure,wearehonoredtoofferyousamples. Canyoubuyaticket?3.Q:Whatisthepayment?A:30%T/TInAdvance,70%T/TAgainstCopyOfB/L B:100%L/CAtSight4.Q:WhatistheMOQforbearing?A:OurMOQis1pc.5.Q:Whatkindofserviceyoucanoffer?A:Technologysupport; Installationguidance;OEM/ODM.Product NameLarge Diameter Tunnel Boring Machine Cross Roller Slewing Ring TurntableModel NumberIGSCRM 2280 1834 150ApplicationFor Tunnel Boring MachineGear OptionInternal Gear onlySeal TypeRubber SealedFeaturesCross Over RollerBrandSYMOuter diameter:2280 mm (89.76")Inner diameter:1833.6 mm (72.19")Roller Diameter45*44.5 mmHeight:150 mm (5.9")Axial play:0.00 mm~ 0.15 mmRadial play:0.00 mm~ 0.15 mmCore hardness:250 ~ 300 HBRaceway Hardness:≥ 55 HRCMaterial:GB42CrMo (DIN42CrMo4/BS708A42/AISI4140)StandardEN 10204 2.2; EN 10204 3.1.B ; EN10204 3.1.CHeat treatmentQuenchingandtempering,raceway induction quenchingOperating Temperature-40°C to +50°CGreaseEP2 lubricating lithium greaseWeight1282 KGSPlace of OriginLuoyang, Henan, ChinaCertificateAPI Q1 Certificate (American Petroleum Institute) Quality Assured FirmQualified to be used in Petroleum machinery equipment.ISO9001:2008 CertificateServicesOEM Service, Customized Service, Design ServiceOur Services1).We have manufactured bearings for many years.We have our own factory , we are the leading manufacturer of bearing in China. We have a large group of bearing material suppliers. They are stable and very cooperated due to our big factory strength.2).The stable annual output was 3000000 sets.The stable output was upon the stable quality. We will schedule the annual orders plan for you upon the stable annual output.3).Our tech and service team was very powerful and professional.We always can meet your requirements upon our tech and service. The large group of tech and service team will meet you around 24 hours. And we will develop the new products upon your potential orders.4).We have our own brand "SYM"Our own brand "SYM" have high reputation among local and abroad. We will search more higher agent around the world.