{"product_id":"stainless-steel-deep-groove-ball-bearing-s6300-s6312","title":"304\/440 Stainless Steel Deep Groove Ball Bearing Bearings 6300 6301 6305 to 6312","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eStainless Steel Deep Groove Ball Bearings S6300–S6312 — Corrosion-Resistant Precision for Demanding Applications\u003c\/h2\u003e\n\u003cp\u003eWhen standard carbon-steel bearings corrode, seize, or contaminate a process, engineers and DIY builders turn to stainless steel deep groove ball bearings. Whether you are maintaining food-processing equipment, marine hardware, pumps, or outdoor power tools, the S6300–S6312 series gives you a direct drop-in replacement that resists rust, moisture, and mild chemical exposure without sacrificing rotational precision.\u003c\/p\u003e\n\u003cp\u003eThese stainless steel deep groove ball bearings are available in two material grades — 304 and 440 stainless steel — and two seal configurations: ZZ (double metal shields) and 2RS (double rubber contact seals). Bore diameters run from 10 mm (0.39 in) to 60 mm (2.36 in), with outer diameters from 35 mm (1.38 in) to 130 mm (5.12 in) and widths from 11 mm (0.43 in) to 31 mm (1.22 in), covering the full S6300-to-S6312 range in a single listing.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include corrosion-resistant bearing replacement in marine shaft assemblies, stainless conveyor rollers in food-grade lines, pump impeller support in water-treatment systems, and precision spindle support in laboratory or medical equipment where carbon-steel contamination is unacceptable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Dimensionally interchangeable with standard 6300-series deep groove ball bearings (ISO 15:2017). Fits any housing or shaft machined to 6300-series tolerances. Verify bore (d), outer diameter (D), and width (B) against your application before ordering.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Stainless Steel Deep Groove Ball Bearings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🦀\u003c\/span\u003e \u003cstrong\u003eCorrosion-Resistant Construction\u003c\/strong\u003e\n\u003cp\u003e304 grade offers broad corrosion resistance for general wet and mildly acidic environments. 440 grade adds higher hardness (typically HRC 58–62) and improved resistance to chloride-bearing media, making it the preferred choice for marine and food-processing applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔒\u003c\/span\u003e \u003cstrong\u003eTwo Seal Options — ZZ and 2RS\u003c\/strong\u003e\n\u003cp\u003eZZ (metal shields) allow higher operating speeds and suit dry or lightly lubricated environments. 2RS (rubber contact seals) provide superior exclusion of water, dust, and particulates, making them the right choice for washdown or outdoor exposure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003eFull S6300–S6312 Size Range\u003c\/strong\u003e\n\u003cp\u003eBore diameters from 10 mm to 60 mm in a single listing. Select the exact model — S6300, S6301, S6302, S6303, S6304, S6305, S6306, S6307, S6308, S6309, S6310, S6311, or S6312 — to match your shaft without modification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e \u003cstrong\u003eDeep Groove Raceway Geometry\u003c\/strong\u003e\n\u003cp\u003eThe deep groove profile handles both radial and moderate axial loads in either direction, eliminating the need for separate thrust bearings in most light-to-medium duty assemblies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e \u003cstrong\u003eDrop-In ISO 6300-Series Compatibility\u003c\/strong\u003e\n\u003cp\u003eOuter dimensions conform to ISO 15:2017 standards for 6300-series bearings. No housing modification required when replacing a standard carbon-steel 6300-series bearing with this stainless equivalent.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e \u003cstrong\u003eBroad Application Fit\u003c\/strong\u003e\n\u003cp\u003eSuited for pumps, fans, conveyors, marine hardware, food-processing machinery, medical devices, laboratory instruments, and general industrial equipment where moisture or chemical exposure rules out standard steel bearings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Stainless Steel Deep Groove Ball Bearings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eS6300 \/ S6301 \/ S6302 \/ S6303 \/ S6304 \/ S6305 \/ S6306 \/ S6307 \/ S6308 \/ S6309 \/ S6310 \/ S6311 \/ S6312\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeal Type\u003c\/th\u003e\n\u003ctd\u003eZZ (double metal shields) or 2RS (double rubber contact seals) — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial Grade\u003c\/th\u003e\n\u003ctd\u003e304 Stainless Steel or 440 Stainless Steel — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter (d)\u003c\/th\u003e\n\u003ctd\u003e10 mm – 60 mm (0.39 in – 2.36 in) — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (D)\u003c\/th\u003e\n\u003ctd\u003e35 mm – 130 mm (1.38 in – 5.12 in) — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth (B)\u003c\/th\u003e\n\u003ctd\u003e11 mm – 31 mm (0.43 in – 1.22 in) — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eDeep Groove Ball Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRow Configuration\u003c\/th\u003e\n\u003ctd\u003eSingle Row\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Direction\u003c\/th\u003e\n\u003ctd\u003eRadial + moderate axial (both directions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003eGrease-lubricated (factory-filled, sealed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003eZZ: typically −20 °C to +120 °C; 2RS: typically −20 °C to +100 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensional Standard\u003c\/th\u003e\n\u003ctd\u003eISO 15:2017 (6300 series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between 304 and 440 stainless steel for bearings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003e304 stainless steel offers good general corrosion resistance and is suitable for most wet, mildly acidic, or humid environments. 440 stainless steel is a martensitic grade that can be hardened to HRC 58–62, giving it higher load capacity and better resistance to chloride-containing media such as seawater or brine. For marine, food-processing, or high-load applications, 440 is typically the stronger choice. For general industrial or laboratory use where extreme hardness is not required, 304 is sufficient and more cost-effective.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between ZZ (metal shield) and 2RS (rubber seal) bearings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eZZ bearings use non-contact metal shields on both sides. They allow slightly higher maximum speeds and are better suited for dry or lightly lubricated environments where contamination is minimal. 2RS bearings use rubber contact seals that physically touch the inner ring, providing a much tighter barrier against water, dust, and particulates. Choose 2RS for washdown environments, outdoor exposure, or anywhere liquid or fine debris could enter the bearing cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I select the correct model number for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the three dimensions shown in the model name: bore diameter (d), outer diameter (D), and width (B). For example, S6304-ZZ corresponds to d=20 mm, D=52 mm, B=15 mm. Measure your existing bearing or check your equipment's engineering drawing. Then select the matching model from the variant dropdown, choose your preferred material grade (304 or 440), and your seal type (ZZ or 2RS).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings compatible with standard 6300-series housings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. The S6300-series stainless steel bearings follow ISO 15:2017 dimensional standards for the 6300 series, so outer dimensions are identical to standard carbon-steel 6300-series bearings. You can replace a standard 6300-series bearing with the corresponding S6300-series stainless bearing without modifying the housing or shaft.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these bearings handle axial (thrust) loads?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eDeep groove ball bearings can accommodate moderate axial loads in both directions in addition to their primary radial load capacity. They are not designed for heavy or purely axial loading — for those applications, angular contact or thrust bearings are more appropriate. For light-to-medium combined radial and axial loads typical of fans, pumps, and conveyors, the S6300-series is well suited.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo these bearings come pre-lubricated, and can I re-lubricate them?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes, these bearings are factory-filled with grease and sealed on both sides. The ZZ metal shields are non-contact and can be carefully removed for re-lubrication if needed. The 2RS rubber seals are contact-type and are generally considered maintenance-free for their service life; re-lubrication is possible but requires careful seal removal. For most applications, the factory grease fill is sufficient for the bearing's rated service life under normal operating conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat environments are these stainless steel bearings NOT suitable for?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eWhile stainless steel offers significantly better corrosion resistance than standard carbon steel, it is not suitable for highly concentrated acids, strong oxidizing agents, or environments with prolonged exposure to chlorine at elevated temperatures. For extreme chemical environments, ceramic or PTFE-coated bearings may be more appropriate. If you are unsure whether these bearings suit your specific chemical environment, contact us to confirm before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your model size, material grade, and seal type above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"S6300-ZZ (10*35*11mm) \/ 304 Material \/ 1","offer_id":52410446971154,"sku":"LXDLIIIIU5114x1","price":23.65,"currency_code":"USD","in_stock":true},{"title":"S6300-ZZ (10*35*11mm) \/ 440 Material \/ 1","offer_id":52410447003922,"sku":"LXDLIIIIU5115x1","price":15.08,"currency_code":"USD","in_stock":true},{"title":"S6301-ZZ (12*37*12mm) \/ 304 Material \/ 1","offer_id":52410447036690,"sku":"LXDLIIIIU5116x1","price":26.1,"currency_code":"USD","in_stock":true},{"title":"S6301-ZZ (12*37*12mm) \/ 440 Material \/ 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1","offer_id":52410447462674,"sku":"LXDLIIIIU5129x1","price":94.91,"currency_code":"USD","in_stock":true},{"title":"S6308-ZZ (40*90*23mm) \/ 304 Material \/ 1","offer_id":52410447495442,"sku":"LXDLIIIIU5733x1","price":173.25,"currency_code":"USD","in_stock":true},{"title":"S6308-ZZ (40*90*23mm) \/ 440 Material \/ 1","offer_id":52410447528210,"sku":"LXDLIIIIU5736x1","price":118.71,"currency_code":"USD","in_stock":true},{"title":"S6309-ZZ (45*100*25mm) \/ 304 Material \/ 1","offer_id":52410447560978,"sku":"LXDLIIIIU5734x1","price":207.52,"currency_code":"USD","in_stock":true},{"title":"S6309-ZZ (45*100*25mm) \/ 440 Material \/ 1","offer_id":52410447593746,"sku":"LXDLIIIIU5737x1","price":149.59,"currency_code":"USD","in_stock":true},{"title":"S6310-ZZ (50*110*27mm) \/ 304 Material \/ 1","offer_id":52410447626514,"sku":"LXDLIIIIU5735x1","price":262.87,"currency_code":"USD","in_stock":true},{"title":"S6310-ZZ (50*110*27mm) \/ 440 Material \/ 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1","offer_id":52410447855890,"sku":"LXDLIIIIU5744x1","price":26.37,"currency_code":"USD","in_stock":true},{"title":"S6304-2RS (20*52*15mm) \/ 440 Material \/ 1","offer_id":52410447888658,"sku":"LXDLIIIIU5745x1","price":31.95,"currency_code":"USD","in_stock":true},{"title":"S6305-2RS (25*62*17mm) \/ 440 Material \/ 1","offer_id":52410447921426,"sku":"LXDLIIIIU5746x1","price":48.13,"currency_code":"USD","in_stock":true},{"title":"S6306-2RS (30*72*19mm) \/ 440 Material \/ 1","offer_id":52410447954194,"sku":"LXDLIIIIU5747x1","price":70.43,"currency_code":"USD","in_stock":true},{"title":"S6307-2RS (35*80*21mm) \/ 440 Material \/ 1","offer_id":52410447986962,"sku":"LXDLIIIIU5748x1","price":94.91,"currency_code":"USD","in_stock":true},{"title":"S6308-2RS (40*90*23mm) \/ 440 Material \/ 1","offer_id":52410448019730,"sku":"LXDLIIIIU5749x1","price":118.71,"currency_code":"USD","in_stock":true},{"title":"S6309-2RS (45*100*25mm) \/ 440 Material \/ 1","offer_id":52410448052498,"sku":"LXDLIIIIU5750x1","price":149.59,"currency_code":"USD","in_stock":true},{"title":"S6310-2RS (50*110*27mm) \/ 440 Material \/ 1","offer_id":52410448085266,"sku":"LXDLIIIIU5751x1","price":192.56,"currency_code":"USD","in_stock":true},{"title":"S6311-2RS (55*120*29mm) \/ 440 Material \/ 1","offer_id":52410448118034,"sku":"LXDLIIIIU5752x1","price":263.28,"currency_code":"USD","in_stock":true},{"title":"S6312-2RS (60*130*31mm) \/ 440 Material \/ 1","offer_id":52410448150802,"sku":"LXDLIIIIU5753x1","price":330.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-12_1cd71448-3e9a-4346-9c89-fbaa04a4eb40.jpg?v=1782448147","url":"https:\/\/homediyer.com\/products\/stainless-steel-deep-groove-ball-bearing-s6300-s6312","provider":"HomeDIYer","version":"1.0","type":"link"}