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Zys Wind Turbine Systems Yaw and Pitch Rolling Bearing 010.30.7101
Slewing Bearing, Yaw Bearing, Wind Turbine Bearing
Luoyang Bearing Research Institute Co., Ltd.
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Product Description ZYS wind turbine systems Yaw and Pitch Rolling Bearing 010.30.710Product DescriptionTechnical requirement of Yaw and Pitch bearings for wind turbine:1. Material and heat treatmentRolling elements in yaw and pitch bearing are made of GCr15 or GCr15SiMn bearing steel according to GB/T 18254 2002. The heat treatment of bearing steel should comply with JB/T1255-2001. Other materials with comparable or better performance can also be used. The material of rings in yaw and pitch bearing usually use 42CrMo that comply with GB/T30771999 standards or other materials which meet the performance requirements. The low-temperature impact energy requirement of the ring is -40oCAKV, not less than 27J.The flaw detection of the ring of the yaw and pitch slewing bearing is not lower than the level II requirements in the GB/T7736-2001 standard. After quenching and tempering, the hardness of ring is 229HB 269HB or determined by negotiation between the supplier and the buyer. The quenching hardness of the raceway surface is 55HRC-62HRC. The width of the soft belt of the yaw and pitch slewing bearing should not be greater than the diameter of the plunger hole plus 35mm. The soft belt should generally be placed in the raceway position of the plunger hole.2. Ring gear of the yaw and pitch slewing bearingRing gear in the yaw and pitch slewing bearing is mainly involute cylindrical gear with gear radial modification coefficient X=+0.5. Gear module should meet the regulations in GB/T1357-1987 standard. The accuracy of gear should not be lower than the requirements of 998GK in GB/T10095.1-2001 regulations.3. ClearanceGenerally the radial and axial clearance of yaw bearing is 0-50μm, and the clearance can be adjusted according to the customer requirements.The radial and axial clearance of pitch bearing is lower than 0. 4. Lubricating oil holeThe yaw bearing and pitch bearing are lubricated through lubricating oil hole, which is screw hole with the specification of M10×1.5. Seal For the yaw bearing and pitch bearing in wind turbines, the seal generally use NRB material which comply with HG/T2811-1996. ZYS uses the sealing ring of well-known foreign brands with good performance and reliable quality for our yaw bearing and pitch bearing.Because the wind turbine is exposed to the wild, there are strict requirements on the sealing performance of the yaw bearing and pitch bearing, and the seal form of the bearing must be optimized to ensure that the bearing life is the same as the wind turbine. Wind turbine are installed at an altitude of more than 50m or even hundreds of meters, and the cost of assembly and disassembly is expensive. Therefore, they must have very high reliability. Generally, they require 20 years of life. In addition, the bearing structure is complicated, so the requirements for design and manufacture of yaw bearing and pitch bearing are extremely high.6. Spacer and cage ZYS yaw bearing for wind turbines has spacers that are self-lubricated and can compensate for lubrication when lubrication oil is unevenly distributed in order to maintain best lubrication status between balls and groove contact areas.ZYS pitch bearing for wind turbines uses integrated steel cage which has simple structure and can save space. It also can accommodate more balls to increase load capacity. Compared with traditional segmented cage, integrated cage is easier to assemble and more stable and reliable during operation.7. Preservative treatmentFor the yaw bearing and pitch bearing, all surfaces except the groove and gear should be applied thermal spraying anti-corrosion treatment according to the regulations in GB/T9793-1997 and GB/T8427-1996. When applied zinc coating, the thickness of anti-corrosion layer shall be no less than 160μm. Other anti-corrosion treatment can be applied to meet the performance requirements of the machine. Product Parameters Basic codeDimension of single row four point contact ball slewing bearingGear parameterExternal gearInternal gearWithout gearOuter gearInner gearDdTD1d1dnnHhbmDaZdaz010.30.560011.30.560013.30.560662458806264941820701060568913542786010.30.560012.30.560014.30.5606624588062649418207010606688.8112428.472010.30.630011.30.630013.30.6307325288069656418247010606772.8126494.483010.30.630012.30.630014.30.6307325288069656418247010608774.494491.262010.30.710011.30.710013.30.7108126088077664418247010606850.8139572.496010.30.710012.30.710014.30.7108126088077664418247010608854.4104571.272010.40.800012.40.800014.40.8009226781008787222230901080109689463464010.40.900011.40.900013.40.9001022778100978822223090108081062.4130739.293010.40.900012.40.900014.40.9001022778100978822223090108010106810473474010.40.1000011.40.1000013.40.100011228781001078922223690108010118811682483010.40.1000012.40.1000014.40.1000112287810010789222236901080121185.696820.869010.40.1120011.40.1120013.40.1120124299810011981042223690108010129812794495010.40.1120012.40.1120014.40.11201242998100119810422236901080121305.6106940.879010.45.1250011.45.1250013.45.1250139011101101337116326401001090121449.61181048.888010.45.1250012.45.1250014.45.1250139011101101337116326401001090141453.21011041.675010.45.1400011.45.1400013.45.1400154012601101487131326401001090121449.61181048.888010.45.1400012.45.1400014.45.1400154012601101487131326401001090141607.21121195.686010.45.1600011.45.1600013.45.1600174014601101687151326451001090141817.21271391.6100010.45.1600012.45.1600014.45.1600174014601101687151326451001090161820.81111382.487010.45.1800011.45.1800013.45.1800194016601101877171326451001090142013.21411573.6113010.45.1800012.45.1800014.45.1800194016601101877171326451001090162012.81231574.499010.60.2000011.60.2000013.60.20002178182514421101891334813212120162268.81391734.4109010.60.2000012.60.2000014.60.20002178182514421101891334813212120182264.41231735.297010.60.2240011.60.2240013.60.2240241820651442350213133481312120162492.81531990.4125010.60.2240012.60.2240014.60.2240241820651442350213133481312120182498.41361987.2111010.60.2500011.60.2500013.60.25002678232514426102391335613212120182768.41512239.2125010.60.2500012.60.2500014.60.250026782325144261023913356132121202027761362228112010.60.2800011.60.2800013.60.28002987262514429102691335613212120183074.41682527.2141010.60.2800012.60.2800014.60.280029872625144291026913356132121202030761512528127010.75.3150011.75.3150013.75.315033762922174328630144556162121502034761712828142010.75.3150012.75.3150014.75.31503376292217432863014455616212150223471.61552824.8129010.75.3550011.75.3550013.75.355037763322174368634144556162121502038761913228162010.75.3550012.75.3550014.75.35503776332217436863414455616212150223889.61743220.8147010.75.4000011.75.4000013.75.40004226377217441363864456016212150224329.61943660.8167010.75.4000012.75.4000014.75.400042263772174413638644560162121502543451713660147 Detailed Photos CertificationsZYS bearing products Packaging & ShippingFAQQ: Are you trading company or manufacturer?A: ZYS is bearing manufacturer, the only first-class comprehensive research institute in China bearing industry.Q: How do you control quality of bearing?A: ZYS has established quality control systems for each kind of bearing and spindle. All products and services passed ISO9001-2008 Quality Certificate.Q: What is the MOQ?A: It depends on the bearing type. You can send inquiry or send e-mail for more information.Q: How about the package?A: Industrial packing in general condition (Plastic tube+ carton+ pallet). Accept design package when OEM.Q: How long is the delivery time?A: It will take about 10 to 40 days, depends on the model and quantity.Q: How about the shipping?A: We can arrange the shipment or you may have the forwarder.Q: Is sample avaiable?A: Yes, sample order is acceptable.Q: Can we use our own LOGO or design on bearings?A: Yes. OEM is acceptable. We can design the bearing with your requirements and use your own LOGO and package design.
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