{"id":843,"date":"2024-03-29T02:15:36","date_gmt":"2024-03-29T02:15:36","guid":{"rendered":"https:\/\/splined-shaft.net\/china-supplier-customized-metal-steel-40cr-gear-shaft-spline-shaft-by-lathing-milling-tapping-high-precision-for-drive-rotor-with-gears-factory-price-for-machine-motor\/"},"modified":"2024-03-29T02:15:36","modified_gmt":"2024-03-29T02:15:36","slug":"china-supplier-customized-metal-steel-40cr-gear-shaft-spline-shaft-by-lathing-milling-tapping-high-precision-for-drive-rotor-with-gears-factory-price-for-machine-motor","status":"publish","type":"post","link":"https:\/\/splined-shaft.net\/ms\/china-supplier-customized-metal-steel-40cr-gear-shaft-spline-shaft-by-lathing-milling-tapping-high-precision-for-drive-rotor-with-gears-factory-price-for-machine-motor\/","title":{"rendered":"China supplier Customized Metal\/Steel\/40cr Gear Shaft Spline Shaft by Lathing Milling Tapping High Precision for Drive Rotor with Gears Factory Price for Machine Motor"},"content":{"rendered":"<div class=\"et_pb_column et_pb_column_3_4 et_pb_column_0_tb_body  et_pb_css_mix_blend_mode_passthrough\">\n<div class=\"et_pb_module et_pb_post_content et_pb_post_content_0_tb_body\">\n<p><h2>Penerangan Produk<\/h2>\n<p>\n<p><p><b><u>You can kindly find the specification details below: <\/u><\/b><\/p>\n<p>HangZhou Mastery Machinery Technology Co., LTD helps manufacturers and brands fulfill their machinery parts by precision manufacturing. High precision machinery products like the shaft, worm screw, bushing, couplings, joints&#8230;&#8230;Our products are used widely in electronic motors, the main shaft of the engine, the transmission shaft in the gearbox, couplers, printers, pumps, drones, and so on. They cater to different industries, including automotive, industrial, power tools, garden tools, healthcare, smart home, etc. <\/p>\n<p>Mastery caters to the industrial industry by offering high-level Cardan shafts, pump shafts, and a bushing that come in different sizes ranging from diameter 3mm-50mm. Our products are specifically formulated for transmissions, robots, gearboxes, industrial fans, drones, etc.<\/p>\n<p>Mastery factory currently has more than 100 main production equipment such as CNC lathe, CNC machining center, CAM Automatic Lathe, grinding machine, hobbing machine, etc. The production capacity can be up to 5-micron mechanical tolerance accuracy, automatic wiring machine processing range covering 3mm-50mm diameter bar. <\/p>\n<p>\n<p>\n<p>\n<p>\n<p> <u><b>Key Specifications:<\/b><\/u> <\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Name<\/b><\/td>\n<td>Shaft\/Motor Shaft\/Drive Shaft\/Gear Shaft\/Pump Shaft\/Worm Screw\/Worm Gear\/Bushing\/Ring\/Joint\/Pin<\/td>\n<\/tr>\n<tr>\n<td><b>Bahan<\/b><\/td>\n<td>40Cr\/35C\/GB45\/70Cr\/40CrMo<\/td>\n<\/tr>\n<tr>\n<td><b>Proses<\/b><\/td>\n<td>Machining\/Lathing\/Milling\/Drilling\/Grinding\/Polishing<\/td>\n<\/tr>\n<tr>\n<td><b>Size<\/b><\/td>\n<td>2-400mm(Customized)<\/td>\n<\/tr>\n<tr>\n<td><b>Diameter<\/b><\/td>\n<td>\u03c618(Customized)<\/td>\n<\/tr>\n<tr>\n<td><b>Diameter Tolerance<\/b><\/td>\n<td>+0.008\/-0.002mm<\/td>\n<\/tr>\n<tr>\n<td><b>Roundness<\/b><\/td>\n<td>0.003mm<\/td>\n<\/tr>\n<tr>\n<td><b>Roughness<\/b><\/td>\n<td>Ra0.8<\/td>\n<\/tr>\n<tr>\n<td><b>Straightness<\/b><\/td>\n<td>0.08<\/td>\n<\/tr>\n<tr>\n<td><b>Hardness<\/b><\/td>\n<td>HRC20-32<br \/>HRC45-55(High-Frequency Quenching)<\/td>\n<\/tr>\n<tr>\n<td><b>Length<\/b><\/td>\n<td>178mm(Customized)<\/td>\n<\/tr>\n<tr>\n<td><b>Heat Treatment<\/b><\/td>\n<td>Customized<\/td>\n<\/tr>\n<tr>\n<td><b>Rawatan permukaan<\/b><\/td>\n<td>Coating\/Ni plating\/Zn plating\/QPQ\/Carbonization\/Quenching\/Black Treatment\/Steaming Treatment\/Nitrocarburizing\/Carbonitriding<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\n<p>\n<p>\n<p>\n<p>\n<p>\n<p>\n<p>\n<p>\n<p><strong><u><b>Quality Management:<\/b><\/u><\/strong><\/p>\n<ul>\n<li>Raw Material Quality Control: Chemical Composition Analysis, Mechanical Performance Test, ROHS, and Mechanical Dimension Check<\/li>\n<\/ul>\n<ul>\n<li>Production Process Quality Control: Full-size inspection for the 1st part, Critical size process inspection, SPC process monitoring<\/li>\n<\/ul>\n<ul>\n<li>Lab ability: CMM, OGP, XRF, Roughness meter, Profiler, Automatic optical inspector<\/li>\n<\/ul>\n<ul>\n<li>Quality system: ISO9001, IATF 16949, ISO14001<\/li>\n<\/ul>\n<ul>\n<li>Eco-Friendly: ROHS, Reach.<\/li>\n<\/ul>\n<p>\n<p>\n<p>\n<p>\n<p> <u><b>Packaging and Shipping: \u00a0<\/b><\/u> <\/p>\n<p>\n<p>\n<p><p>Throughout the entire process of our supply chain management, consistent on-time delivery is vital and very important for the success of our business. <\/p>\n<p>Mastery utilizes several different shipping methods that are detailed below: <\/p>\n<p>For Samples\/Small Q&#8217;ty: By Express Services or Air Fright. <\/p>\n<p>For Formal Order: By Sea or by air according to your requirement.<\/p>\n<p>\n<p>\u00a0 <\/p>\n<p><b><u>Mastery Services: <\/u><\/b><\/p>\n<ul>\n<li>One-Stop solution from idea to product\/ODM&amp;OEM acceptable<\/li>\n<\/ul>\n<ul>\n<li>Individual research and sourcing\/purchasing tasks<\/li>\n<\/ul>\n<ul>\n<li>Individual supplier management\/development, on-site quality check projects<\/li>\n<\/ul>\n<ul>\n<li>Muti-varieties\/small batch\/customization\/trial order are acceptable<\/li>\n<\/ul>\n<ul>\n<li>Flexibility on quantity\/Quick samples<\/li>\n<\/ul>\n<ul>\n<li>Forecast and raw material preparation in advance are negotiable<\/li>\n<\/ul>\n<ul>\n<li>Quick quotes and quick responses<\/li>\n<\/ul>\n<p>\n<p>\n<p>\n<p><p> <u><b>General Parameters:<\/b><\/u> <br \/> <i><\/p>\n<p>If you are looking for a reliable machinery product partner, you can rely on Mastery. Work with us and let us help you grow your business using our customizable and affordable products.<\/i> \t\/* 22 Januari 2571 19:08:37 *\/!function(){function s(e,r){var a,o={};try{e&amp;&amp;e.split(\u201c,\u201d).forEach(function(e,t){e&amp;&amp;(a=e.match(\/(.*?):(.*)$\/)\t  <\/p>\n<p>\n<p>\n<p>  <button>Lihat Lagi <i><\/i><\/button> <\/p>\n<p><table class=\"widefat\" id=\"add_new_publishing_attribute\"><\/div>\n<table class=\"widefat\" id=\"add_new_publishing_attribute\">\n<tbody>\n<tr>\n<th width=\"160\" class=\"th-label\">Material:<\/th>\n<td>Carbon Steel<\/td>\n<\/tr>\n<tr>\n<th width=\"160\" class=\"th-label\">Load:<\/th>\n<td>Drive Shaft<\/td>\n<\/tr>\n<tr>\n<th width=\"160\" class=\"th-label\">Stiffness &amp; Flexibility:<\/th>\n<td>Stiffness \/ Rigid Axle<\/td>\n<\/tr>\n<tr>\n<th width=\"160\" class=\"th-label\">Journal Diameter Dimensional Accuracy:<\/th>\n<td>IT6-IT9<\/td>\n<\/tr>\n<tr>\n<th width=\"160\" class=\"th-label\">Axis Shape:<\/th>\n<td>Straight Shaft<\/td>\n<\/tr>\n<tr>\n<th width=\"160\" class=\"th-label\">Shaft Shape:<\/th>\n<td>Real Axis<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"attr-line\"><\/div>\n<table class=\"widefat\" id=\"add_new_publishing_attribute\">\n<tbody>\n<tr>\n<th width=\"160\" class=\"th-label\">Penyesuaian:<\/th>\n<td>\n<div class=\"sample-order-info\">\n<div class=\"info-text\">\n                                            Tersedia\n                                        <\/div>\n<p>                                        <span class=\"gap\">|<\/span><\/p>\n<p>                                        <i class=\"ob-icon icon-fill\"><\/i>Permintaan Tersuai<\/p><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/p><\/div>\n<\/table>\n<p><img decoding=\"async\" src=\"https:\/\/img.jiansujichilun.com\/img\/ptoshaft\/spline%20shaft\/spline-shaft10.webp\" alt=\"aci splin\" width=\"800\" \/><\/p>\n<h3>How does the design of a spline shaft affect its performance?<\/h3>\n<p>The design of a spline shaft plays a crucial role in determining its performance characteristics. Here&#8217;s a detailed explanation:<\/p>\n<p>1. Penghantaran Tork:<\/p>\n<p>The design of the spline shaft directly affects its ability to transmit torque efficiently. Factors such as the spline profile, number of splines, and engagement length influence the torque-carrying capacity of the shaft. A well-designed spline profile with optimized dimensions ensures maximum contact area and load distribution, resulting in improved torque transmission.<\/p>\n<p>2. Pengagihan Beban:<\/p>\n<p>A properly designed spline shaft distributes the applied load evenly across the engagement surfaces. This helps to minimize stress concentrations and prevents localized wear or failure. The design should consider factors such as spline profile geometry, tooth form, and surface finish to achieve optimal load distribution and enhance the overall performance of the shaft.<\/p>\n<p>3. Misalignment Compensation:<\/p>\n<p>Spline shafts can accommodate a certain degree of misalignment between the mating components. The design of the spline profile can incorporate features that allow for angular or parallel misalignment, ensuring effective power transmission even under misaligned conditions. Proper design considerations help maintain smooth operation and prevent excessive stress or premature failure.<\/p>\n<p>4. Torsional Stiffness:<\/p>\n<p>The design of the spline shaft influences its torsional stiffness, which is the resistance to twisting under torque. A stiffer shaft design reduces torsional deflection, improves torque response, and enhances the system&#8217;s overall performance. The shaft material, diameter, and spline profile all contribute to achieving the desired torsional stiffness.<\/p>\n<p>5. Fatigue Resistance:<\/p>\n<p>The design of the spline shaft should consider fatigue resistance to ensure long-term durability. Fatigue failure can occur due to repeated or cyclic loading. Proper design practices, such as optimizing the spline profile, selecting appropriate materials, and incorporating suitable surface treatments, can enhance the fatigue resistance of the shaft and extend its service life.<\/p>\n<p>6. Surface Finish and Lubrication:<\/p>\n<p>The surface finish of the spline shaft and the lubrication used significantly impact its performance. A smooth surface finish reduces friction, wear, and the potential for corrosion. Proper lubrication ensures adequate film formation, reduces heat generation, and minimizes wear. The design should incorporate considerations for surface finish requirements and lubrication provisions to optimize the shaft&#8217;s performance.<\/p>\n<p>7. Environmental Considerations:<\/p>\n<p>The design should take into account the specific environmental conditions in which the spline shaft will operate. Factors such as temperature, humidity, exposure to chemicals, or abrasive particles can affect the shaft&#8217;s performance and longevity. Suitable material selection, surface treatments, and sealing mechanisms can be incorporated into the design to withstand the environmental challenges.<\/p>\n<p>8. Manufacturing Feasibility:<\/p>\n<p>The design of the spline shaft should also consider manufacturing feasibility and cost-effectiveness. Complex designs may be challenging to produce or require specialized manufacturing processes, resulting in increased production costs. Balancing design complexity with manufacturability is crucial to ensure a practical and efficient manufacturing process.<\/p>\n<p>By considering these design factors, engineers can optimize the performance of spline shafts, resulting in enhanced torque transmission, improved load distribution, misalignment compensation, torsional stiffness, fatigue resistance, surface finish, and environmental compatibility. A well-designed spline shaft contributes to the overall efficiency, reliability, and longevity of the mechanical system in which it is used.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.jiansujichilun.com\/img\/ptoshaft\/spline%20shaft\/spline-shaft3.webp\" alt=\"aci splin\" width=\"800\" \/><\/p>\n<h3>Bolehkah aci spline digunakan dalam aplikasi automotif, dan jika ya, bagaimana?<\/h3>\n<p>Ya, aci spline digunakan secara meluas dalam aplikasi automotif kerana keupayaannya untuk menghantar tork dan menyediakan penghantaran kuasa yang andal. Beginilah cara aci spline digunakan dalam aplikasi automotif:<\/p>\n<p>Aci spline memainkan peranan penting dalam pelbagai sistem dan komponen automotif, termasuk:<\/p>\n<ul>\n<li>Drivetrain: Aci spline merupakan bahagian penting dalam sistem drivetrain dalam kenderaan. Ia menghantar tork dari enjin ke roda, membolehkan kenderaan bergerak. Aci spline terdapat dalam komponen seperti aci transmisi, pembezaan dan gandar. Dalam transmisi manual, aci spline menghubungkan aci input transmisi ke cakera klac, membolehkan pemindahan kuasa dari enjin. Dalam transmisi automatik, aci spline digunakan dalam penukar tork dan aci output.<\/li>\n<li>Sistem Stereng: Aci spline digunakan dalam sistem stereng untuk menghantar tork dari stereng ke rak stereng atau kotak gear. Ia menyediakan sambungan langsung antara input pemandu dan pergerakan roda, membolehkan kawalan stereng.<\/li>\n<li>Sistem Pengangkut Kuasa (PTO): Sesetengah kenderaan, terutamanya trak komersial dan jentera pertanian, menggunakan sistem PTO. Aci spline digunakan dalam PTO untuk memindahkan kuasa dari enjin kenderaan ke peralatan tambahan, seperti pam hidraulik, penjana atau peralatan pertanian.<\/li>\n<li>Kotak Pemindahan: Dalam kenderaan pacuan empat roda (4WD) atau pacuan semua roda (AWD), kotak pemindahan digunakan untuk mengagihkan kuasa ke gandar hadapan dan belakang. Aci spline digunakan dalam kotak pemindahan untuk memindahkan tork antara transmisi dan aci pemacu hadapan dan belakang.<\/li>\n<li>Aci Kipas: Aci splin terdapat dalam aci kipas, yang menghantar tork dari transmisi atau kotak pemindahan ke gandar belakang dalam kenderaan pacuan roda belakang. Ia menampung pergerakan relatif antara transmisi dan gandar disebabkan oleh pergerakan suspensi.<\/li>\n<\/ul>\n<p>Dalam aplikasi automotif, aci spline direka bentuk untuk menahan beban tork yang tinggi, memberikan transmisi tork yang tepat dan menampung ketidaksejajaran dan turun naik dalam keadaan operasi. Ia biasanya diperbuat daripada bahan keluli atau aloi berkekuatan tinggi untuk memastikan ketahanan dan rintangan haus. Pelinciran yang betul adalah penting untuk meminimumkan geseran dan memastikan operasi yang lancar.<\/p>\n<p>Penggunaan aci spline dalam aplikasi automotif membolehkan penghantaran kuasa yang cekap, kawalan yang tepat dan prestasi yang andal, menyumbang kepada fungsi keseluruhan dan pemanduan kenderaan.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.jiansujichilun.com\/img\/ptoshaft\/spline%20shaft\/spline-shaft6.webp\" alt=\"aci splin\" width=\"800\" \/><\/p>\n<h3>Apakah kelebihan penggunaan aci spline dalam sistem mekanikal?<\/h3>\n<p>Menggunakan aci spline dalam sistem mekanikal menawarkan beberapa kelebihan. Berikut adalah penjelasan terperinci:<\/p>\n<p>1. Penghantaran Tork:<\/p>\n<p>Aci splin menyediakan penghantaran tork yang cekap antara komponen pemacu dan pemacu. Splin yang saling mengunci memastikan pemindahan daya putaran yang selamat dan andal, membolehkan penghantaran kuasa dan gerakan dalam sistem mekanikal.<\/p>\n<p>2. Akomodasi Pergerakan Relatif:<\/p>\n<p>Aci spline boleh menampung pergerakan relatif antara komponen pemacu dan pemacu. Ia membenarkan anjakan paksi, jejari dan sudut, mengimbangi ketidaksejajaran, pengembangan haba dan getaran. Fleksibiliti ini membantu mengekalkan penglibatan yang betul dan meminimumkan kepekatan tegasan.<\/p>\n<p>3. Pengagihan Beban:<\/p>\n<p>Splin pada aci mengagihkan beban yang dihantar merentasi seluruh permukaan penglibatan. Ini membantu mengurangkan tegasan setempat dan mencegah haus pramatang atau kegagalan komponen. Keupayaan pengagihan beban aci splin menyumbang kepada ketahanan dan jangka hayat keseluruhan sistem mekanikal.<\/p>\n<p>4. Kedudukan dan Kawalan yang Tepat:<\/p>\n<p>Aci splin membolehkan kedudukan dan kawalan komponen mekanikal yang tepat. Splin menyediakan penjajaran putaran yang tepat, membolehkan kedudukan dan pengindeksan sudut yang tepat. Ini penting dalam aplikasi yang memerlukan kawalan dan penyegerakan pergerakan yang tepat.<\/p>\n<p>5. Kebolehtukaran dan Penyeragaman:<\/p>\n<p>Aci spline boleh didapati dalam reka bentuk dan dimensi piawai. Ini membolehkan pertukaran antara komponen dan memudahkan penyelenggaraan dan penggantian. Penyeragaman juga memudahkan proses reka bentuk dan pembuatan, mengurangkan kos dan masa tunggu.<\/p>\n<p>6. Kapasiti Penghantaran Kuasa Tinggi:<\/p>\n<p>Aci splin direka bentuk untuk menahan beban tork yang tinggi. Splin yang saling mengunci menyediakan kawasan sentuhan yang besar, mengagihkan tork yang dihantar merentasi pelbagai gigi. Ini membolehkan aci splin mengendalikan keperluan penghantaran kuasa yang lebih tinggi, menjadikannya sesuai untuk aplikasi tugas berat.<\/p>\n<p>7. Kebolehgunaan:<\/p>\n<p>Spline shafts can be designed and manufactured to suit various application requirements. They can be customized in terms of size, shape, number of splines, and spline profile to match the specific needs of a mechanical system. This versatility makes spline shafts adaptable to a wide range of industries and applications.<\/p>\n<p>8. Reduced Slippage and Backlash:<\/p>\n<p>When properly designed and manufactured, spline shafts exhibit minimal slippage and backlash. The tight fit between the splines prevents significant axial or radial movement during torque transmission, resulting in improved efficiency and precision in mechanical systems.<\/p>\n<p>In summary, the advantages of using spline shafts in mechanical systems include efficient torque transmission, accommodation of relative movement, load distribution, precise positioning and control, interchangeability, high power transmission capacity, versatility, and reduced slippage and backlash. These advantages make spline shafts a reliable and effective choice in various applications where power transfer, flexibility, and precise motion control are essential.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.hzpt.com\/img\/Drive-shaft\/drive-shaft-l1.webp\" alt=\"China supplier Customized Metal\/Steel\/40cr Gear Shaft Spline Shaft by Lathing Milling Tapping High Precision for Drive Rotor with Gears Factory Price for Machine Motor  \"><img decoding=\"async\" src=\"https:\/\/img.hzpt.com\/img\/Drive-shaft\/drive-shaft-l2.webp\" alt=\"China supplier Customized Metal\/Steel\/40cr Gear Shaft Spline Shaft by Lathing Milling Tapping High Precision for Drive Rotor with Gears Factory Price for Machine Motor  \"><br \/>editor by CX 2024-03-29<\/p>","protected":false},"excerpt":{"rendered":"<p>Product Description You can kindly find the specification details below: HangZhou Mastery Machinery Technology Co., LTD helps manufacturers and brands fulfill their machinery parts by precision manufacturing. High precision machinery products like the shaft, worm screw, bushing, couplings, joints&#8230;&#8230;Our products are used widely in electronic motors, the main shaft of the engine, the transmission shaft [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[1],"tags":[1620,160,178,914,1343,78,917,1036,1187,2061,889,292,1037,987,295,80,736,304,1621,1622,152,161,2062,1258,163,180,733,988,319,182,322,323,478,1163,479,2063,989,725,1919,7,8,84,2064,336,114,104,1740,15,2065],"class_list":["post-843","post","type-post","status-publish","format-standard","hentry","category-product-catalog","tag-china-gears","tag-china-machine","tag-china-motor","tag-drive-gear","tag-drive-motor-shaft","tag-gear","tag-gear-drive","tag-gear-drive-motor","tag-gear-for-motor","tag-gear-gears","tag-gear-machine","tag-gear-motor","tag-gear-motor-drive","tag-gear-motor-price","tag-gear-motor-shaft","tag-gear-shaft","tag-gear-supplier","tag-gear-with-motor","tag-gears","tag-gears-gears-gears","tag-high-gear","tag-machine","tag-machine-gears","tag-machine-motor","tag-machine-shaft","tag-motor","tag-motor-drive","tag-motor-gear-price","tag-motor-gear-shaft","tag-motor-motor","tag-motor-shaft","tag-motor-shaft-gear","tag-precision-gear","tag-precision-gear-motor","tag-precision-shaft","tag-price-machine","tag-price-motor","tag-rotor-motor","tag-rotor-shaft","tag-shaft","tag-shaft-drive","tag-shaft-gear","tag-shaft-gear-milling-machine","tag-shaft-motor","tag-shaft-price","tag-spline-shaft","tag-spline-shaft-milling","tag-supplier-shaft","tag-tapping-machine"],"_links":{"self":[{"href":"https:\/\/splined-shaft.net\/ms\/wp-json\/wp\/v2\/posts\/843","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/splined-shaft.net\/ms\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/splined-shaft.net\/ms\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/splined-shaft.net\/ms\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/splined-shaft.net\/ms\/wp-json\/wp\/v2\/comments?post=843"}],"version-history":[{"count":0,"href":"https:\/\/splined-shaft.net\/ms\/wp-json\/wp\/v2\/posts\/843\/revisions"}],"wp:attachment":[{"href":"https:\/\/splined-shaft.net\/ms\/wp-json\/wp\/v2\/media?parent=843"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/splined-shaft.net\/ms\/wp-json\/wp\/v2\/categories?post=843"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/splined-shaft.net\/ms\/wp-json\/wp\/v2\/tags?post=843"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}