{"id":14337,"date":"2025-02-16T14:54:53","date_gmt":"2025-02-16T12:54:53","guid":{"rendered":"https:\/\/nhkmachineryparts.com\/?p=14337"},"modified":"2025-10-15T13:51:57","modified_gmt":"2025-10-15T11:51:57","slug":"lozyska-ze-stali-nierdzewnej-420-vs-440-kompleksowe-porownanie","status":"publish","type":"post","link":"https:\/\/nhkmachineryparts.com\/pl\/stainless-steel-420-vs-440-bearing-units-a-comprehensive-comparison\/","title":{"rendered":"Jednostki \u0142o\u017cyskowe ze stali nierdzewnej 420 i 440: kompleksowe por\u00f3wnanie"},"content":{"rendered":"<p><style>@media (min-width: 992px) { .liquid-row-responsive-69d4c690a76d5 {padding-top:50px !important; padding-bottom:88px !important;  }  }    <\/style><section data-bg-image=\"url\" class=\"vc_row vc_custom_1712042566150 liquid-row-responsive-69d4c690a76d5 liquid-row-shadowbox-69d4c690a76f5 vc_row-has-fill vc_row-has-bg\"><div class=\"ld-container container\"><div class=\"row ld-row ld-row-outer\"><div class=\"wpb_column vc_column_container vc_col-sm-12 liquid-column-69d4c690a7933\"><div class=\"vc_column-inner  \" ><div class=\"wpb_wrapper\"  ><div class=\"vc_row vc_inner vc_row-fluid liquid-row-shadowbox-69d4c690a7a24\"><div class=\"ld-container container-fluid\"><div class=\"row ld-row ld-row-inner vc_row-o-content-middle vc_row-flex\"><style>@media (min-width: 992px) { .liquid-column-responsive-69d4c690a7b3a > .vc_column-inner {padding-right:2% !important;  }  } @media (min-width: 1200px) { .liquid-column-responsive-69d4c690a7b3a > .vc_column-inner {padding-right:4% !important;  }  } <\/style><div class=\"wpb_column vc_column_container vc_col-sm-12 vc_col-lg-8 vc_col-md-8 vc_col-xs-12 liquid-column-69d4c690a7b39 liquid-column-responsive-69d4c690a7b3a\"><div class=\"vc_column-inner \" ><div class=\"wpb_wrapper\" >\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2>Performance and Durability<\/h2>\n<p data-start=\"85\" data-end=\"474\">When selecting stainless steel bearing units for industrial applications, the choice between <strong data-start=\"178\" data-end=\"209\">420 and 440 stainless steel<\/strong> plays a crucial role in determining performance, longevity, and resistance to wear and corrosion. Both materials offer unique benefits, making them suitable for different environments, including food processing, pharmaceutical production, and heavy-duty machinery.<\/p>\n<p data-start=\"476\" data-end=\"685\">This guide will provide a detailed comparison between <strong data-start=\"530\" data-end=\"575\">Stainless Steel 420 and 440 bearing units<\/strong>, examining their properties, applications, advantages, and limitations to help you make an informed decision.<\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/mounted-ball-bearing-house-units\/\">Stainless Steel 420 vs. 440 Bearing Units<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/catalog\/\">Get our catalogue here<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/\">See our product line here<\/a><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-12 vc_col-lg-4 vc_col-md-4 vc_col-xs-12 liquid-column-69d4c690a7cb7\"><div class=\"vc_column-inner \" ><div class=\"wpb_wrapper\" ><style>.ld_button_69d4c690a7d79.btn-icon-solid .btn-icon{background:rgba(255, 255, 255, 0);}.ld_button_69d4c690a7d79.btn-icon-circle.btn-icon-ripple .btn-icon:before{border-color:rgba(255, 255, 255, 0);}.ld_button_69d4c690a7d79.btn-icon-solid:hover .btn-icon{background:rgba(255, 255, 255, 0);}.ld_button_69d4c690a7d79{color:rgb(34, 34, 34);border-color:rgba(255, 255, 255, 0);}.ld_button_69d4c690a7d79:hover{background-color:rgba(255, 255, 255, 0);border-color:rgba(255, 255, 255, 0);color:rgb(34, 34, 34);}.ld_button_69d4c690a7d79 .btn-gradient-bg-hover{background:-webkit-linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0) 100%);background:linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0) 100%);}.ld_button_69d4c690a7d79:hover .btn-gradient-border defs stop:first-child{stop-color:rgb(34, 34, 34);}.ld_button_69d4c690a7d79:hover .btn-gradient-border defs stop:last-child{stop-color:rgb(34, 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role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/pl\/wp-json\/wp\/v2\/posts\/14337#wpcf7-f2151-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Formularz kontaktowy\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"2151\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.5\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f2151-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/><input type=\"hidden\" name=\"_wpcf7_recaptcha_response\" value=\"\" \/>\n<\/fieldset>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"company-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Company name*\" value=\"\" type=\"text\" name=\"company-name\" \/><\/span><span class=\"wpcf7-form-control-wrap\" data-name=\"text-902\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Name*\" value=\"\" type=\"text\" name=\"text-902\" \/><\/span><span class=\"wpcf7-form-control-wrap\" data-name=\"email-899\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your email*\" value=\"\" type=\"email\" name=\"email-899\" \/><\/span><span class=\"wpcf7-form-control-wrap\" data-name=\"tel-828\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-text wpcf7-validates-as-tel\" aria-invalid=\"false\" placeholder=\"Phone\" value=\"\" type=\"tel\" name=\"tel-828\" \/><\/span><span class=\"wpcf7-form-control-wrap\" data-name=\"textarea-529\"><textarea cols=\"10\" rows=\"3\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Message*\" name=\"textarea-529\"><\/textarea><\/span><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Send message\" \/>\n<\/p><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n<\/div>\n\t\t<\/div><!-- \/.lqd-modal-content -->\n\t\t<div class=\"lqd-modal-foot\"><\/div><!-- \/.lqd-modal-foot -->\n\n\t<\/div><!-- \/.lqd-modal-inner -->\n<\/div><!-- \/#modal-box.lqd-modal --><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section data-bg-image=\"url\" class=\"vc_row vc_custom_1711480886685 liquid-row-shadowbox-69d4c690ab3d8 vc_row-has-fill vc_row-has-bg\"><div class=\"ld-container container\"><div class=\"row ld-row ld-row-outer\"><style>@media (min-width: 992px) { .liquid-column-responsive-69d4c690ab64f > .vc_column-inner {margin-bottom:0px !important; padding-right:2% !important;  }  } @media (min-width: 1200px) { .liquid-column-responsive-69d4c690ab64f > .vc_column-inner {padding-right:4% !important;  }  } <\/style><div class=\"wpb_column vc_column_container vc_col-sm-12 vc_col-lg-6 vc_col-md-8 vc_col-xs-12 liquid-column-69d4c690ab64e liquid-column-responsive-69d4c690ab64f\"><div class=\"vc_column-inner  vc_custom_1711483264577\" ><div class=\"wpb_wrapper\"  >\n\t<div class=\"wpb_text_column wpb_content_element  vc_custom_1739710229713\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 data-start=\"692\" data-end=\"736\">Understanding Stainless Steel 420 and 440<\/h2>\n<h3 data-start=\"738\" data-end=\"774\"><strong data-start=\"742\" data-end=\"774\">What is Stainless Steel 420?<\/strong><\/h3>\n<p data-start=\"775\" data-end=\"1004\">Stainless Steel 420 is a <strong data-start=\"800\" data-end=\"831\">martensitic stainless steel<\/strong> with a high carbon content that enhances hardness and wear resistance. It is widely used in applications where moderate corrosion resistance and high strength are required.<\/p>\n<h3 data-start=\"1006\" data-end=\"1048\"><strong data-start=\"1006\" data-end=\"1048\">Key properties of 420 stainless steel:<\/strong><\/h3>\n<ul data-start=\"1049\" data-end=\"1409\">\n<li data-start=\"1049\" data-end=\"1111\">Hardness: Can be hardened to <strong data-start=\"1080\" data-end=\"1090\">50 HRC<\/strong> (Rockwell Hardness).<\/li>\n<li data-start=\"1112\" data-end=\"1193\">Corrosion Resistance: Moderate, suitable for <strong data-start=\"1159\" data-end=\"1179\">mildly corrosive<\/strong> environments.<\/li>\n<li data-start=\"1194\" data-end=\"1267\">Strength: Good mechanical strength, but lower than 440 stainless steel.<\/li>\n<li data-start=\"1268\" data-end=\"1339\">Composition: Contains <strong data-start=\"1292\" data-end=\"1311\">12-14% chromium<\/strong> and up to <strong data-start=\"1322\" data-end=\"1338\">0.40% carbon<\/strong>.<\/li>\n<li data-start=\"1340\" data-end=\"1409\">Magnetic Properties: Magnetic due to its <strong data-start=\"1383\" data-end=\"1408\">martensitic structure<\/strong>.<\/li>\n<\/ul>\n<h3 data-start=\"1411\" data-end=\"1447\"><strong data-start=\"1415\" data-end=\"1447\">What is Stainless Steel 440?<\/strong><\/h3>\n<p data-start=\"1448\" data-end=\"1676\">Stainless Steel 440, particularly <strong data-start=\"1482\" data-end=\"1490\">440C<\/strong>, is another martensitic stainless steel with <strong data-start=\"1536\" data-end=\"1561\">higher carbon content<\/strong>, making it harder and more wear-resistant than 420 stainless steel. It is often used in extreme wear applications.<\/p>\n<h3 data-start=\"1678\" data-end=\"1720\"><strong data-start=\"1678\" data-end=\"1720\">Key properties of 440 stainless steel:<\/strong><\/h3>\n<ul data-start=\"1721\" data-end=\"2136\">\n<li data-start=\"1721\" data-end=\"1823\">Hardness: Can be hardened to <strong data-start=\"1752\" data-end=\"1765\">58-60 HRC<\/strong>, making it one of the hardest stainless steels available.<\/li>\n<li data-start=\"1824\" data-end=\"1927\">Corrosion Resistance: <strong data-start=\"1848\" data-end=\"1883\">Higher than 420 stainless steel<\/strong>, but lower than austenitic grades like 316.<\/li>\n<li data-start=\"1928\" data-end=\"1990\">Strength: Higher tensile and yield strength compared to 420.<\/li>\n<li data-start=\"1991\" data-end=\"2061\">Composition: Contains <strong data-start=\"2015\" data-end=\"2034\">16-18% chromium<\/strong> and <strong data-start=\"2039\" data-end=\"2060\">up to 1.2% carbon<\/strong>.<\/li>\n<li data-start=\"2062\" data-end=\"2136\">Magnetic Properties: Also magnetic due to its <strong data-start=\"2110\" data-end=\"2135\">martensitic structure<\/strong>.<\/li>\n<\/ul>\n<hr data-start=\"2138\" data-end=\"2141\" \/>\n<h2 data-start=\"2143\" data-end=\"2204\"><strong data-start=\"2146\" data-end=\"2204\">Comparing Stainless Steel 420 vs. 440 in Bearing Units<\/strong><\/h2>\n<table data-start=\"2206\" data-end=\"2901\">\n<thead data-start=\"2206\" data-end=\"2284\">\n<tr data-start=\"2206\" data-end=\"2284\">\n<th data-start=\"2206\" data-end=\"2231\"><strong data-start=\"2208\" data-end=\"2220\">Property<\/strong><\/th>\n<th data-start=\"2231\" data-end=\"2257\"><strong data-start=\"2233\" data-end=\"2256\">Stainless Steel 420<\/strong><\/th>\n<th data-start=\"2257\" data-end=\"2284\"><strong data-start=\"2259\" data-end=\"2282\">Stainless Steel 440<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"2362\" data-end=\"2901\">\n<tr data-start=\"2362\" data-end=\"2438\">\n<td><strong data-start=\"2364\" data-end=\"2382\">Hardness (HRC)<\/strong><\/td>\n<td>48-50<\/td>\n<td>58-60<\/td>\n<\/tr>\n<tr data-start=\"2439\" data-end=\"2517\">\n<td><strong data-start=\"2441\" data-end=\"2465\">Corrosion Resistance<\/strong><\/td>\n<td>Moderate<\/td>\n<td>High<\/td>\n<\/tr>\n<tr data-start=\"2518\" data-end=\"2594\">\n<td><strong data-start=\"2520\" data-end=\"2539\">Wear Resistance<\/strong><\/td>\n<td>Moderate<\/td>\n<td>Excellent<\/td>\n<\/tr>\n<tr data-start=\"2595\" data-end=\"2670\">\n<td><strong data-start=\"2597\" data-end=\"2609\">Strength<\/strong><\/td>\n<td>Good<\/td>\n<td>Higher than 420<\/td>\n<\/tr>\n<tr data-start=\"2671\" data-end=\"2748\">\n<td><strong data-start=\"2673\" data-end=\"2685\">Magnetic<\/strong><\/td>\n<td>Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr data-start=\"2749\" data-end=\"2825\">\n<td><strong data-start=\"2751\" data-end=\"2768\">Machinability<\/strong><\/td>\n<td>Easier to machine<\/td>\n<td>Difficult to machine<\/td>\n<\/tr>\n<tr data-start=\"2826\" data-end=\"2901\">\n<td><strong data-start=\"2828\" data-end=\"2836\">Cost<\/strong><\/td>\n<td>Lower<\/td>\n<td>Higher<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 data-start=\"2903\" data-end=\"2942\"><strong data-start=\"2907\" data-end=\"2942\">Corrosion Resistance Comparison<\/strong><\/h3>\n<ul data-start=\"2943\" data-end=\"3260\">\n<li data-start=\"2943\" data-end=\"3064\"><strong data-start=\"2945\" data-end=\"2968\">420 stainless steel<\/strong> has moderate corrosion resistance but is <strong data-start=\"3010\" data-end=\"3030\">prone to rusting<\/strong> in highly corrosive environments.<\/li>\n<li data-start=\"3065\" data-end=\"3260\"><strong data-start=\"3067\" data-end=\"3090\">440 stainless steel<\/strong> offers better corrosion resistance due to its <strong data-start=\"3137\" data-end=\"3156\">higher chromium<\/strong> content but is still <strong data-start=\"3178\" data-end=\"3208\">not as corrosion-resistant<\/strong> as austenitic stainless steels like <strong data-start=\"3245\" data-end=\"3259\">304 or 316<\/strong>.<\/li>\n<\/ul>\n<h3 data-start=\"3262\" data-end=\"3298\"><strong data-start=\"3266\" data-end=\"3298\">Wear Resistance and Hardness<\/strong><\/h3>\n<ul data-start=\"3299\" data-end=\"3502\">\n<li data-start=\"3299\" data-end=\"3422\"><strong data-start=\"3301\" data-end=\"3336\">440 stainless steel is superior<\/strong> in wear resistance, making it suitable for <strong data-start=\"3380\" data-end=\"3408\">high-load and high-speed<\/strong> applications.<\/li>\n<li data-start=\"3423\" data-end=\"3502\"><strong data-start=\"3425\" data-end=\"3458\">420 stainless steel is softer<\/strong>, meaning it wears faster under heavy loads.<\/li>\n<\/ul>\n<h3 data-start=\"3504\" data-end=\"3541\"><strong data-start=\"3508\" data-end=\"3541\">Machinability and Workability<\/strong><\/h3>\n<ul data-start=\"3542\" data-end=\"3731\">\n<li data-start=\"3542\" data-end=\"3656\"><strong data-start=\"3544\" data-end=\"3567\">420 stainless steel<\/strong> is <strong data-start=\"3571\" data-end=\"3592\">easier to machine<\/strong>, making it more cost-effective for manufacturing bearing units.<\/li>\n<li data-start=\"3657\" data-end=\"3731\"><strong data-start=\"3659\" data-end=\"3703\">440 stainless steel is harder to machine<\/strong> due to its higher hardness.<\/li>\n<\/ul>\n<h3 data-start=\"3733\" data-end=\"3762\"><strong data-start=\"3737\" data-end=\"3762\">Cost and Availability<\/strong><\/h3>\n<ul data-start=\"3763\" data-end=\"3941\">\n<li data-start=\"3763\" data-end=\"3863\"><strong data-start=\"3765\" data-end=\"3807\">420 stainless steel is more affordable<\/strong>, making it ideal for <strong data-start=\"3829\" data-end=\"3862\">budget-sensitive applications<\/strong>.<\/li>\n<li data-start=\"3864\" data-end=\"3941\"><strong data-start=\"3866\" data-end=\"3907\">440 stainless steel is more expensive<\/strong> but offers <strong data-start=\"3919\" data-end=\"3940\">higher durability<\/strong>.<\/li>\n<\/ul>\n<hr data-start=\"3943\" data-end=\"3946\" \/>\n<h2 data-start=\"3948\" data-end=\"4012\"><strong data-start=\"3951\" data-end=\"4012\">Applications of Stainless Steel 420 vs. 440 Bearing Units<\/strong><\/h2>\n<h3 data-start=\"4014\" data-end=\"4077\"><strong data-start=\"4018\" data-end=\"4077\">Best Applications for 420 Stainless Steel Bearing Units<\/strong><\/h3>\n<ul data-start=\"4078\" data-end=\"4295\">\n<li data-start=\"4078\" data-end=\"4129\"><strong data-start=\"4080\" data-end=\"4109\">Food processing equipment<\/strong> (mild environments)<\/li>\n<li data-start=\"4130\" data-end=\"4156\"><strong data-start=\"4132\" data-end=\"4156\">Light-duty conveyors<\/strong><\/li>\n<li data-start=\"4157\" data-end=\"4191\"><strong data-start=\"4159\" data-end=\"4191\">General industrial machinery<\/strong><\/li>\n<li data-start=\"4192\" data-end=\"4223\"><strong data-start=\"4194\" data-end=\"4223\">Low-moisture environments<\/strong><\/li>\n<li data-start=\"4224\" data-end=\"4247\"><strong data-start=\"4226\" data-end=\"4247\">Medical equipment<\/strong><\/li>\n<li data-start=\"4248\" data-end=\"4295\"><strong data-start=\"4250\" data-end=\"4277\">Automotive applications<\/strong> (moderate stress)<\/li>\n<\/ul>\n<h3 data-start=\"4297\" data-end=\"4360\"><strong data-start=\"4301\" data-end=\"4360\">Best Applications for 440 Stainless Steel Bearing Units<\/strong><\/h3>\n<ul data-start=\"4361\" data-end=\"4598\">\n<li data-start=\"4361\" data-end=\"4392\"><strong data-start=\"4363\" data-end=\"4392\">Pharmaceutical processing<\/strong><\/li>\n<li data-start=\"4393\" data-end=\"4419\"><strong data-start=\"4395\" data-end=\"4419\">High-speed machinery<\/strong><\/li>\n<li data-start=\"4420\" data-end=\"4460\"><strong data-start=\"4422\" data-end=\"4460\">Heavy-duty industrial applications<\/strong><\/li>\n<li data-start=\"4461\" data-end=\"4529\"><strong data-start=\"4463\" data-end=\"4497\">Harsh environmental conditions<\/strong> (high humidity, mild chemicals)<\/li>\n<li data-start=\"4530\" data-end=\"4557\"><strong data-start=\"4532\" data-end=\"4557\">Precision instruments<\/strong><\/li>\n<li data-start=\"4558\" data-end=\"4598\"><strong data-start=\"4560\" data-end=\"4598\">Aerospace and defense applications<\/strong><\/li>\n<\/ul>\n<hr data-start=\"4600\" data-end=\"4603\" \/>\n<h2 data-start=\"4605\" data-end=\"4665\"><strong data-start=\"4608\" data-end=\"4665\">Which Stainless Steel Bearing Unit Should You Choose?<\/strong><\/h2>\n<h3 data-start=\"4667\" data-end=\"4705\"><strong data-start=\"4671\" data-end=\"4705\">Choose 420 Stainless Steel If:<\/strong><\/h3>\n<p data-start=\"4706\" data-end=\"4923\">\u2714 You need a more <strong data-start=\"4724\" data-end=\"4751\">cost-effective solution<\/strong>.<br data-start=\"4752\" data-end=\"4755\" \/>\u2714 The application involves <strong data-start=\"4782\" data-end=\"4804\">moderate corrosion<\/strong> conditions.<br data-start=\"4816\" data-end=\"4819\" \/>\u2714 You require <strong data-start=\"4833\" data-end=\"4857\">easier machinability<\/strong>.<br data-start=\"4858\" data-end=\"4861\" \/>\u2714 You need a balance between <strong data-start=\"4890\" data-end=\"4920\">strength and affordability<\/strong>.<\/p>\n<h3 data-start=\"4925\" data-end=\"4963\"><strong data-start=\"4929\" data-end=\"4963\">Choose 440 Stainless Steel If:<\/strong><\/h3>\n<p data-start=\"4964\" data-end=\"5200\">\u2714 You need <strong data-start=\"4975\" data-end=\"4999\">high wear resistance<\/strong> for heavy loads.<br data-start=\"5016\" data-end=\"5019\" \/>\u2714 The environment involves <strong data-start=\"5046\" data-end=\"5084\">higher humidity and mild chemicals<\/strong>.<br data-start=\"5085\" data-end=\"5088\" \/>\u2714 You require <strong data-start=\"5102\" data-end=\"5138\">superior hardness and durability<\/strong>.<br data-start=\"5139\" data-end=\"5142\" \/>\u2714 You are using bearings in <strong data-start=\"5170\" data-end=\"5197\">high-speed applications<\/strong>.<\/p>\n<hr data-start=\"5202\" data-end=\"5205\" \/>\n<h2 data-start=\"5207\" data-end=\"5260\"><strong data-start=\"5210\" data-end=\"5260\">Balancing Performance and Cost<\/strong><\/h2>\n<p data-start=\"5261\" data-end=\"5479\">Both <strong data-start=\"5266\" data-end=\"5311\">Stainless Steel 420 and 440 bearing units<\/strong> serve important roles in industrial applications. The decision between these two materials comes down to balancing <strong data-start=\"5427\" data-end=\"5478\">performance, cost, and environmental conditions<\/strong>.<\/p>\n<ul data-start=\"5481\" data-end=\"5770\">\n<li data-start=\"5481\" data-end=\"5633\"><strong data-start=\"5483\" data-end=\"5522\">For general industrial applications<\/strong> where moderate corrosion resistance and good strength are required, <strong data-start=\"5591\" data-end=\"5632\">420 stainless steel is a solid choice<\/strong>.<\/li>\n<li data-start=\"5634\" data-end=\"5770\"><strong data-start=\"5636\" data-end=\"5673\">For high-performance applications<\/strong> that demand superior hardness and wear resistance, <strong data-start=\"5725\" data-end=\"5769\">440 stainless steel is the better option<\/strong>.<\/li>\n<\/ul>\n<p data-start=\"5772\" data-end=\"5943\">By understanding the key differences and selecting the right material, you can <strong data-start=\"5851\" data-end=\"5942\">improve machine efficiency, reduce maintenance costs, and enhance long-term reliability<\/strong>.<\/p>\n<hr data-start=\"5945\" data-end=\"5948\" \/>\n<ul data-start=\"5983\" data-end=\"6392\">\n<li data-start=\"5983\" data-end=\"6015\"><strong data-start=\"5985\" data-end=\"6015\">Stainless steel 420 vs 440<\/strong><\/li>\n<li data-start=\"6016\" data-end=\"6062\"><strong data-start=\"6018\" data-end=\"6062\">420 vs 440 stainless steel bearing units<\/strong><\/li>\n<li data-start=\"6063\" data-end=\"6106\"><strong data-start=\"6065\" data-end=\"6106\">Best stainless steel bearing material<\/strong><\/li>\n<li data-start=\"6107\" data-end=\"6141\"><strong data-start=\"6109\" data-end=\"6141\">420 stainless steel bearings<\/strong><\/li>\n<li data-start=\"6142\" data-end=\"6176\"><strong data-start=\"6144\" data-end=\"6176\">440 stainless steel bearings<\/strong><\/li>\n<li data-start=\"6177\" data-end=\"6223\"><strong data-start=\"6179\" data-end=\"6223\">Industrial bearing units stainless steel<\/strong><\/li>\n<li data-start=\"6224\" data-end=\"6269\"><strong data-start=\"6226\" data-end=\"6269\">Wear-resistant stainless steel bearings<\/strong><\/li>\n<li data-start=\"6270\" data-end=\"6309\"><strong data-start=\"6272\" data-end=\"6309\">Corrosion-resistant bearing units<\/strong><\/li>\n<li data-start=\"6310\" data-end=\"6344\"><strong data-start=\"6312\" data-end=\"6344\">Heavy-duty bearing materials<\/strong><\/li>\n<li data-start=\"6345\" data-end=\"6392\"><strong data-start=\"6347\" data-end=\"6392\">Martensitic stainless steel bearing units<\/strong><\/li>\n<\/ul>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element  vc_custom_1729177119724\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2>Questions and contact<\/h2>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/contact\/\">Contact us for hygienic solution<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/catalogue\/\" target=\"_blank\" rel=\"noopener\">Get our catalogue here<\/a><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><style>@media (min-width: 992px) { .liquid-column-responsive-69d4c690abc86 > .vc_column-inner {padding-left:2% !important;  }  } @media (min-width: 1200px) { .liquid-column-responsive-69d4c690abc86 > .vc_column-inner {padding-left:4% !important;  }  } <\/style><div class=\"wpb_column vc_column_container vc_col-sm-12 vc_col-lg-6 vc_col-md-4 vc_col-xs-12 liquid-column-69d4c690abc84 liquid-column-responsive-69d4c690abc86\"><div class=\"vc_column-inner  \" ><div class=\"wpb_wrapper\"  >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_  liquid_vc_single_image-69d4c690ac123\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   \"><img loading=\"lazy\" decoding=\"async\" width=\"2700\" height=\"1500\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Smart-Solutions-for-Root-Fruits-and-Vegetables-The-Next-Generation-Intelligent-Production-Line.jpg\" class=\"vc_single_image-img attachment-full\" alt=\"Smart Solutions for Root Fruits and Vegetables The Next-Generation Intelligent Production Line\" title=\"Smart Solutions for Root Fruits and Vegetables The Next-Generation Intelligent Production Line\" srcset=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Smart-Solutions-for-Root-Fruits-and-Vegetables-The-Next-Generation-Intelligent-Production-Line.jpg 2700w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Smart-Solutions-for-Root-Fruits-and-Vegetables-The-Next-Generation-Intelligent-Production-Line-1000x556.jpg 1000w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Smart-Solutions-for-Root-Fruits-and-Vegetables-The-Next-Generation-Intelligent-Production-Line-1500x833.jpg 1500w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Smart-Solutions-for-Root-Fruits-and-Vegetables-The-Next-Generation-Intelligent-Production-Line-18x10.jpg 18w\" sizes=\"auto, (max-width: 2700px) 100vw, 2700px\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_  liquid_vc_single_image-69d4c690ac44d\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   \"><img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1250\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Vegetables-washing-and-sorting-machine.jpg\" class=\"vc_single_image-img attachment-full\" alt=\"Vegetables washing and sorting machine\" title=\"Vegetables washing and sorting machine\" srcset=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Vegetables-washing-and-sorting-machine.jpg 2000w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Vegetables-washing-and-sorting-machine-1000x625.jpg 1000w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Vegetables-washing-and-sorting-machine-1500x938.jpg 1500w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Vegetables-washing-and-sorting-machine-18x12.jpg 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_  liquid_vc_single_image-69d4c690ac738\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   \"><img loading=\"lazy\" decoding=\"async\" width=\"624\" height=\"356\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Innovative-food-processing-equipment-ensuring-efficiency-hygiene-and-quality-in-every-step.jpg\" class=\"vc_single_image-img attachment-full\" alt=\"Innovative food processing equipment ensuring efficiency, hygiene and quality in every step\" title=\"Innovative food processing equipment ensuring efficiency, hygiene and quality in every step\" srcset=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Innovative-food-processing-equipment-ensuring-efficiency-hygiene-and-quality-in-every-step.jpg 624w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Innovative-food-processing-equipment-ensuring-efficiency-hygiene-and-quality-in-every-step-18x10.jpg 18w\" sizes=\"auto, (max-width: 624px) 100vw, 624px\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_  liquid_vc_single_image-69d4c690aca37\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   \"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Essential-food-processing-equipment-designed-for-efficiency-hygiene-and-precision-in-production.jpg\" class=\"vc_single_image-img attachment-full\" alt=\"Essential food processing equipment designed for efficiency, hygiene and precision in production\" title=\"Essential food processing equipment designed for efficiency, hygiene and precision in production\" srcset=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Essential-food-processing-equipment-designed-for-efficiency-hygiene-and-precision-in-production.jpg 1024w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Essential-food-processing-equipment-designed-for-efficiency-hygiene-and-precision-in-production-1000x666.jpg 1000w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Essential-food-processing-equipment-designed-for-efficiency-hygiene-and-precision-in-production-18x12.jpg 18w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/section><section class=\"vc_row vc_custom_1711481063069 liquid-row-shadowbox-69d4c690acbee\"><div class=\"ld-container container\"><div class=\"row ld-row ld-row-outer\"><div 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\/>\n<\/fieldset>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"company-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Company name*\" value=\"\" type=\"text\" name=\"company-name\" \/><\/span><span class=\"wpcf7-form-control-wrap\" data-name=\"text-902\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Name*\" value=\"\" type=\"text\" name=\"text-902\" \/><\/span><span class=\"wpcf7-form-control-wrap\" data-name=\"email-899\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your email*\" value=\"\" type=\"email\" name=\"email-899\" \/><\/span><span class=\"wpcf7-form-control-wrap\" 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liquid-row-responsive-69d4c690ad4ac liquid-row-shadowbox-69d4c690ad4c3\"><div class=\"ld-container container\"><div class=\"row ld-row ld-row-outer\"><div class=\"wpb_column vc_column_container vc_col-sm-12 liquid-column-69d4c690ad654\"><div class=\"vc_column-inner  \" ><div class=\"wpb_wrapper\"  ><div  class=\"lqd-simple-heading-wrap ld_simple_heading_69d4c690ad6fe\">\n<h2 class=\"lqd-simple-heading\">\n\t<\/p>\n<h2>Articles<\/h2>\n<p><\/h2>\n<\/div><style>.ld_blog_69d4c690ad7fc .lqd-lp-row{margin-inline-start:-15px;margin-inline-end:-15px;}.ld_blog_69d4c690ad7fc .lqd-lp-column{padding-inline-start:15px;padding-inline-end:15px;margin-bottom:30px;}.ld_blog_69d4c690ad7fc .lqd-lp .lqd-lp-title{margin-top:px !important;margin-bottom:px !important;}.ld_blog_69d4c690ad7fc .lqd-lp .lqd-lp-title a{color:rgb(34, 34, 34);}.ld_blog_69d4c690ad7fc .lqd-lp:hover .lqd-lp-title a{color:rgb(34, 34, 34);}.ld_blog_69d4c690ad7fc .lqd-lp .lqd-lp-content-bg, .ld_blog_69d4c690ad7fc .lqd-lp .lqd-lp-img .lqd-overlay{background:rgba(0, 0, 0, 0.3);}<\/style><div class=\"lqd-lp-grid ld_blog_69d4c690ad7fc lqd-1711481130217-352addb9-deb8 \"><div class=\"lqd-lp-row row d-flex flex-wrap\"><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39399\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39399 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/04\/Advancing-Food-Safety-Through-Hygienic-Design-700x450.png\" class=\"w-100 wp-post-image\" alt=\"Advancing Food Safety Through Hygienic Design\" srcset=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/04\/Advancing-Food-Safety-Through-Hygienic-Design-700x450.png 700w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/04\/Advancing-Food-Safety-Through-Hygienic-Design-18x12.png 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-04-07T07:33:32+02:00\">7. kwietnia 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/pl\/advancing-food-safety-through-hygienic-design\/\" rel=\"bookmark\">Advancing Food Safety Through Hygienic Design<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/pl\/advancing-food-safety-through-hygienic-design\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39397\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39397 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/06\/3-A-SSI-Primarily-focused-on-North-America-including-the-United-States-and-Canada-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"3-A SSI Primarily focused on North America, including the United States and Canada\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-04-07T07:20:56+02:00\">7. kwietnia 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/pl\/everything-you-want-to-know-about-3-a-ssi\/\" rel=\"bookmark\">Everything You Want to Know About 3-A SSI<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/pl\/everything-you-want-to-know-about-3-a-ssi\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39362\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39362 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/04\/3-A-SSI-Sanitary-Design-in-Food-Processing-and-Pharmaceutical-Industries-700x450.png\" class=\"w-100 wp-post-image\" alt=\"3-A SSI Sanitary Design in Food Processing and Pharmaceutical Industries\" srcset=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/04\/3-A-SSI-Sanitary-Design-in-Food-Processing-and-Pharmaceutical-Industries-700x450.png 700w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/04\/3-A-SSI-Sanitary-Design-in-Food-Processing-and-Pharmaceutical-Industries-18x12.png 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-04-05T16:53:32+02:00\">5. kwietnia 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/pl\/reduce-energy-costs-and-water-consumption\/\" rel=\"bookmark\">Reduce Energy Costs and Water Consumption<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/pl\/reduce-energy-costs-and-water-consumption\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39348\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39348 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/04\/3-A-SSI-Authorized-components-for-Harsh-Conditions-Reducing-Water-and-Cleaning-Detergent-Usage-in-Hygienic-Production-700x450.png\" class=\"w-100 wp-post-image\" alt=\"3-A SSI Authorized components for Harsh Conditions Reducing Water and Cleaning Detergent Usage in Hygienic Production\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-04-05T15:51:48+02:00\">5. kwietnia 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/pl\/reduce-energy-consumption\/\" rel=\"bookmark\">Reduce Energy Consumption<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/pl\/reduce-energy-consumption\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39202\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39202 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Next-Generation-Stainless-Steel-Comparing-420-vs-440-Stainless-Steel-tubes-and-bars-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"Next-Generation Stainless Steel Comparing 420 vs 440 Stainless Steel tubes and bars\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-03-30T14:21:23+02:00\">30. marca 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/pl\/aisi-440c-stainless-steel-vs-hardened-aisi-420\/\" rel=\"bookmark\">AISI 440C stainless steel vs hardened AISI 420<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/pl\/aisi-440c-stainless-steel-vs-hardened-aisi-420\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39049\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39049 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/02\/EHEDG-certificated-components.png-700x450.jpeg\" class=\"w-100 wp-post-image\" alt=\"3-A SSI authorized standard components\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-03-22T23:28:46+02:00\">22. marca 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/pl\/3-a-ssi-authorized-standard-sanitary-conveyor-components\/\" rel=\"bookmark\">3-A SSI Authorized Standard Sanitary Conveyor Components<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/pl\/3-a-ssi-authorized-standard-sanitary-conveyor-components\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39047\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39047 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/08\/NHK-5-700x450.png\" class=\"w-100 wp-post-image\" alt=\"3-A SSI Authorized Standard Components: Built for Hygienic Performance, Compliance, and Long-Term Trust\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-03-22T23:16:27+02:00\">22. marca 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/pl\/3-a-ssi-authorized-standard-components\/\" rel=\"bookmark\">3-A SSI Authorized Standard Components<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/pl\/3-a-ssi-authorized-standard-components\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39043\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39043 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/08\/IP67-bearing-units--700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"3-A SSI composite bearing units\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-03-22T23:03:44+02:00\">22. marca 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/pl\/3-a-ssi-ip69k-block-bearing-units\/\" rel=\"bookmark\">3-A SSI IP69K Block Bearing Units<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/pl\/3-a-ssi-ip69k-block-bearing-units\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-37980\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-37980 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/01\/Pillow-Block-vs-Flange-Bearing-comparison-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"Pillow Block vs Flange Bearing comparison\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-01-10T19:24:04+02:00\">10. stycznia 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/pl\/pillow-block-vs-flange-bearing-comparison\/\" rel=\"bookmark\">Pillow Block vs Flange Bearing Comparison<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/pl\/pillow-block-vs-flange-bearing-comparison\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-37961\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-37961 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/01\/Pillow-block-vs-flange-bearing-explained-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"Pillow block vs flange bearing explained\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" 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href=\"https:\/\/nhkmachineryparts.com\/pl\/components-for-packaging-machinery\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><\/div><!--\/ .row --><\/div><!--\/ .lqd-lp-grid --><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"In the high-speed world of packaging, uptime is the ultimate currency. Every minute your line is stopped\u2014whether it's for a jam, a mechanical failure, or a cleaning cycle\u2014is a direct hit to your bottom line.\u00a0However, from our decades of experience at\u00a0NHK Group, we know that the root cause of most unscheduled downtime isn't the complex [...]","protected":false},"author":3,"featured_media":13154,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-14337","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-food-processing-and-pharmaceutical-equipment"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Stainless Steel 420 vs. 440 Bearing Units: A Comprehensive Comparison | NHK Machinery Parts<\/title>\n<meta name=\"description\" content=\"Which One is Right for Your Application? 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