{"id":5880,"date":"2026-04-22T08:54:02","date_gmt":"2026-04-22T08:54:02","guid":{"rendered":"http:\/\/ql-autoparts.com\/?post_type=product&#038;p=5880"},"modified":"2026-04-22T08:54:02","modified_gmt":"2026-04-22T08:54:02","slug":"wg2229040048-main-shaft-gear-spacer","status":"publish","type":"product","link":"http:\/\/ql-autoparts.com\/ru\/product\/wg2229040048-main-shaft-gear-spacer\/","title":{"rendered":"WG2229040048 Main shaft gear spacer"},"content":{"rendered":"<p data-start=\"138\" data-end=\"256\">The WG2229040048 Main Shaft Gear Spacer is a precision transmission component designed for heavy-duty truck gearboxes.<\/p>\n<p data-start=\"258\" data-end=\"503\">It is installed between main shaft gears to provide axial positioning, clearance control, and load distribution. It plays a critical role in ensuring accurate transmission alignment, stable operation, and long service life of the gearbox system.<\/p>\n<p data-start=\"505\" data-end=\"624\">This component is widely used in gearbox assembly, maintenance, and OEM replacement for heavy-duty commercial vehicles.<\/p>\n<p data-start=\"505\" data-end=\"624\"><img alt=\"\" fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-5883 aligncenter\" src=\"http:\/\/ql-autoparts.com\/wp-content\/uploads\/2026\/04\/1-19.webp\" width=\"600\" height=\"400\" srcset=\"http:\/\/ql-autoparts.com\/wp-content\/uploads\/2026\/04\/1-19.webp 600w, http:\/\/ql-autoparts.com\/wp-content\/uploads\/2026\/04\/1-19-300x200.webp 300w, http:\/\/ql-autoparts.com\/wp-content\/uploads\/2026\/04\/1-19-18x12.webp 18w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h2 data-section-id=\"3shrf0\" data-start=\"631\" data-end=\"649\">Key Function<\/h2>\n<ul data-start=\"650\" data-end=\"859\">\n<li data-section-id=\"n2bdaf\" data-start=\"650\" data-end=\"705\">Provides axial positioning between main shaft gears<\/li>\n<li data-section-id=\"1njh6jl\" data-start=\"706\" data-end=\"756\">Controls gear clearance and assembly tolerance<\/li>\n<li data-section-id=\"ocj53i\" data-start=\"757\" data-end=\"810\">Ensures even load distribution across gear system<\/li>\n<li data-section-id=\"uw0i5g\" data-start=\"811\" data-end=\"859\">Improves transmission accuracy and stability<\/li>\n<\/ul>\n<h2 data-section-id=\"p6k24r\" data-start=\"866\" data-end=\"890\">Product Advantages<\/h2>\n<h3 data-section-id=\"1fqj449\" data-start=\"892\" data-end=\"933\">\u25cf High-Strength Material Construction<\/h3>\n<p data-start=\"934\" data-end=\"1024\">Manufactured from <strong data-start=\"952\" data-end=\"1004\">65Mn spring steel or 40Cr alloy structural steel<\/strong>, the spacer offers:<\/p>\n<ul data-start=\"1025\" data-end=\"1158\">\n<li data-section-id=\"1fb8pk6\" data-start=\"1025\" data-end=\"1066\">High strength and excellent toughness<\/li>\n<li data-section-id=\"9kqg4c\" data-start=\"1067\" data-end=\"1107\">Strong fatigue and impact resistance<\/li>\n<li data-section-id=\"oyiywg\" data-start=\"1108\" data-end=\"1158\">Stable performance under heavy load conditions<\/li>\n<\/ul>\n<p data-start=\"1160\" data-end=\"1217\">After quenching and tempering heat treatment, it ensures:<\/p>\n<ul data-start=\"1218\" data-end=\"1302\">\n<li data-section-id=\"100spg2\" data-start=\"1218\" data-end=\"1259\">No deformation under long-term stress<\/li>\n<li data-section-id=\"mfansu\" data-start=\"1260\" data-end=\"1302\">No cracking under heavy-duty operation<\/li>\n<\/ul>\n<h3 data-section-id=\"z7rvg2\" data-start=\"1309\" data-end=\"1351\">\u25cf Excellent Anti-Corrosion Performance<\/h3>\n<p data-start=\"1352\" data-end=\"1431\">The surface adopts <strong data-start=\"1371\" data-end=\"1419\">blackening + phosphating composite treatment<\/strong>, providing:<\/p>\n<ul data-start=\"1432\" data-end=\"1584\">\n<li data-section-id=\"uyjkii\" data-start=\"1432\" data-end=\"1474\">Strong resistance to oil and corrosion<\/li>\n<li data-section-id=\"10zred8\" data-start=\"1475\" data-end=\"1526\">Excellent high-temperature stability (80\u2013120\u00b0C)<\/li>\n<li data-section-id=\"aoyi3n\" data-start=\"1527\" data-end=\"1584\">Long-lasting protection in harsh gearbox environments<\/li>\n<\/ul>\n<p data-start=\"1586\" data-end=\"1664\">It is suitable for high-frequency vibration and lubricated working conditions.<\/p>\n<h3 data-section-id=\"e6k1ro\" data-start=\"1671\" data-end=\"1708\">\u25cf Precision Manufacturing Process<\/h3>\n<p data-start=\"1709\" data-end=\"1772\">The spacer is produced using high-precision forming technology:<\/p>\n<ul data-start=\"1773\" data-end=\"1895\">\n<li data-section-id=\"fi9tj5\" data-start=\"1773\" data-end=\"1815\">Precision stamping \/ machining process<\/li>\n<li data-section-id=\"k1rzfm\" data-start=\"1816\" data-end=\"1851\">Burr-free smooth surface finish<\/li>\n<li data-section-id=\"kcl4o8\" data-start=\"1852\" data-end=\"1895\">No deformation or structural distortion<\/li>\n<\/ul>\n<p data-start=\"1897\" data-end=\"1974\">This ensures high dimensional accuracy and reliable installation performance.<\/p>\n<h3 data-section-id=\"idph69\" data-start=\"1981\" data-end=\"2017\">\u25cf High Flatness &amp; Stable Fitment<\/h3>\n<p data-start=\"2018\" data-end=\"2054\">Both sides are precision ground for:<\/p>\n<ul data-start=\"2055\" data-end=\"2149\">\n<li data-section-id=\"3y1u93\" data-start=\"2055\" data-end=\"2080\">High surface flatness<\/li>\n<li data-section-id=\"vo61h\" data-start=\"2081\" data-end=\"2120\">Perfect contact with gear end faces<\/li>\n<li data-section-id=\"x2x1q9\" data-start=\"2121\" data-end=\"2149\">Stable axial positioning<\/li>\n<\/ul>\n<p data-start=\"2151\" data-end=\"2214\">It effectively reduces vibration, noise, and gear misalignment.<\/p>\n<h3 data-section-id=\"otd3v7\" data-start=\"2221\" data-end=\"2271\">\u25cf Anti-Loosening Design with Spline Inner Ring<\/h3>\n<p data-start=\"2272\" data-end=\"2311\">The internal spline structure provides:<\/p>\n<ul data-start=\"2312\" data-end=\"2440\">\n<li data-section-id=\"b3xou\" data-start=\"2312\" data-end=\"2356\">Secure engagement with main shaft spline<\/li>\n<li data-section-id=\"1lrb1zv\" data-start=\"2357\" data-end=\"2393\">Prevents rotational displacement<\/li>\n<li data-section-id=\"1kfcilr\" data-start=\"2394\" data-end=\"2440\">Ensures stable positioning under vibration<\/li>\n<\/ul>\n<p data-start=\"2442\" data-end=\"2494\">This significantly improves operational reliability.<\/p>\n<h3 data-section-id=\"1o42hao\" data-start=\"2501\" data-end=\"2541\">\u25cf High Rigidity Thin Plate Structure<\/h3>\n<p data-start=\"2542\" data-end=\"2572\">The optimized design features:<\/p>\n<ul data-start=\"2573\" data-end=\"2697\">\n<li data-section-id=\"1gfjspz\" data-start=\"2573\" data-end=\"2624\">High load-bearing capacity despite thin profile<\/li>\n<li data-section-id=\"1dnznqe\" data-start=\"2625\" data-end=\"2656\">Uniform stress distribution<\/li>\n<li data-section-id=\"hujx7r\" data-start=\"2657\" data-end=\"2697\">Reduced risk of stress concentration<\/li>\n<\/ul>\n<p data-start=\"2699\" data-end=\"2754\">It helps extend the service life of gears and bearings.<\/p>\n<h3 data-section-id=\"1jd4d70\" data-start=\"2761\" data-end=\"2800\">\u25cf Safe Installation &amp; Compatibility<\/h3>\n<p data-start=\"2801\" data-end=\"2848\">All edges and spline areas are finely polished:<\/p>\n<ul data-start=\"2849\" data-end=\"2974\">\n<li data-section-id=\"te0bg3\" data-start=\"2849\" data-end=\"2870\">Burr-free surface<\/li>\n<li data-section-id=\"1d7q6oy\" data-start=\"2871\" data-end=\"2925\">No damage to mating components during installation<\/li>\n<li data-section-id=\"1wabsov\" data-start=\"2926\" data-end=\"2974\">High compatibility with tight gearbox spaces<\/li>\n<\/ul>\n<h2 data-section-id=\"a153ij\" data-start=\"2981\" data-end=\"3005\">Technical Features<\/h2>\n<ul data-start=\"3006\" data-end=\"3283\">\n<li data-section-id=\"3x2n1h\" data-start=\"3006\" data-end=\"3056\">Material: 65Mn spring steel \/ 40Cr alloy steel<\/li>\n<li data-section-id=\"60wtkq\" data-start=\"3057\" data-end=\"3098\">Heat treatment: Quenching + tempering<\/li>\n<li data-section-id=\"iv904t\" data-start=\"3099\" data-end=\"3146\">Surface treatment: Blackening + phosphating<\/li>\n<li data-section-id=\"p8o5en\" data-start=\"3147\" data-end=\"3206\">Structure: Precision thin spacer with spline inner ring<\/li>\n<li data-section-id=\"oraxdl\" data-start=\"3207\" data-end=\"3249\">High flatness and dimensional accuracy<\/li>\n<li data-section-id=\"303g1v\" data-start=\"3250\" data-end=\"3283\">Burr-free precision finishing<\/li>\n<\/ul>\n<h2 data-section-id=\"ovzyni\" data-start=\"3290\" data-end=\"3313\">Application Scope<\/h2>\n<ul data-start=\"3314\" data-end=\"3505\">\n<li data-section-id=\"xtmw1w\" data-start=\"3314\" data-end=\"3348\">Heavy-duty truck transmissions<\/li>\n<li data-section-id=\"apwtqq\" data-start=\"3349\" data-end=\"3385\">Main shaft gear assembly systems<\/li>\n<li data-section-id=\"8aai1o\" data-start=\"3386\" data-end=\"3426\">Gear spacing and positioning systems<\/li>\n<li data-section-id=\"1fpsoo\" data-start=\"3427\" data-end=\"3467\">Commercial vehicle driveline systems<\/li>\n<li data-section-id=\"xhln4u\" data-start=\"3468\" data-end=\"3505\">OEM production and gearbox repair<\/li>\n<\/ul>\n<h2 data-section-id=\"lgpldt\" data-start=\"3512\" data-end=\"3538\">Performance Benefits<\/h2>\n<ul data-start=\"3539\" data-end=\"3752\">\n<li data-section-id=\"t0sv5i\" data-start=\"3539\" data-end=\"3587\">Precise gear positioning and spacing control<\/li>\n<li data-section-id=\"3xm4bf\" data-start=\"3588\" data-end=\"3628\">Reduced vibration and abnormal noise<\/li>\n<li data-section-id=\"ivw1r9\" data-start=\"3629\" data-end=\"3664\">Improved transmission stability<\/li>\n<li data-section-id=\"t4hsyi\" data-start=\"3665\" data-end=\"3707\">Extended gear and bearing service life<\/li>\n<li data-section-id=\"1gk18c1\" data-start=\"3708\" data-end=\"3752\">Prevents axial gear movement and failure<\/li>\n<\/ul>\n<h2 data-section-id=\"15pa784\" data-start=\"3759\" data-end=\"3781\">Supply &amp; Service<\/h2>\n<ul data-start=\"3782\" data-end=\"3931\">\n<li data-section-id=\"kxp44\" data-start=\"3782\" data-end=\"3815\">Ready stock for fast delivery<\/li>\n<li data-section-id=\"15gq54b\" data-start=\"3816\" data-end=\"3847\">OEM customization available<\/li>\n<li data-section-id=\"1ovecuh\" data-start=\"3848\" data-end=\"3887\">Stable quality for long-term supply<\/li>\n<li data-section-id=\"1v43j48\" data-start=\"3888\" data-end=\"3931\">Professional technical support provided<\/li>\n<\/ul>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>The WG2229040048 main shaft gear spacer is a precision component of heavy-duty truck gearboxes. It is used for axial positioning, clearance control, and load distribution between the main shaft gears, and is a core component ensuring precise transmission and smooth operation of the gearbox. Made of high-quality spring steel\/40Cr alloy structural steel, it combines strength and toughness, suitable for harsh working conditions such as heavy loads, hill climbing, and long-distance transportation in heavy trucks. After quenching and tempering heat treatment, it is impact-resistant, wear-resistant, and fatigue-resistant, and will not deform or crack under long-term heavy loads. It undergoes a blackening and phosphating composite anti-rust treatment to form a dense, wear-resistant protective film, resistant to oil, corrosion, and high temperatures, suitable for the high-temperature, oil-rich, and high-frequency vibration environment of the gearbox (80-120\u2103), and is not prone to rust, scale buildup, or wear. The high-rigidity thin-plate structure design has a strong load-bearing capacity, can evenly distribute the axial load between gears, avoid local stress concentration, reduce the risk of gear pitting and wear, and extend the service life of the matching gears and bearings.<\/p>","protected":false},"featured_media":5883,"template":"","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"WG2229040048 Main Shaft Gear Spacer | Truck Transmission Shim Plate","_seopress_titles_desc":"WG2229040048 main shaft gear spacer is a precision transmission component for heavy-duty trucks. Made of 65Mn or 40Cr steel with heat treatment and anti-corrosion coating, it ensures stable gear spacing, accurate positioning, and long service life under heavy load conditions.","_seopress_robots_index":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[130],"product_tag":[],"class_list":{"0":"post-5880","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-wg2229040048-main-shaft-gear-spacer","7":"desktop-align-center","8":"tablet-align-left","9":"mobile-align-left","10":"ast-product-gallery-layout-horizontal-slider","11":"ast-product-gallery-with-no-image","12":"ast-product-tabs-layout-horizontal","14":"first","15":"instock","16":"shipping-taxable","17":"product-type-simple"},"_links":{"self":[{"href":"http:\/\/ql-autoparts.com\/ru\/wp-json\/wp\/v2\/product\/5880","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/ql-autoparts.com\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"http:\/\/ql-autoparts.com\/ru\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/ql-autoparts.com\/ru\/wp-json\/wp\/v2\/media\/5883"}],"wp:attachment":[{"href":"http:\/\/ql-autoparts.com\/ru\/wp-json\/wp\/v2\/media?parent=5880"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"http:\/\/ql-autoparts.com\/ru\/wp-json\/wp\/v2\/product_brand?post=5880"},{"taxonomy":"product_cat","embeddable":true,"href":"http:\/\/ql-autoparts.com\/ru\/wp-json\/wp\/v2\/product_cat?post=5880"},{"taxonomy":"product_tag","embeddable":true,"href":"http:\/\/ql-autoparts.com\/ru\/wp-json\/wp\/v2\/product_tag?post=5880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}