{"product_id":"304-ss-roller-chain-drive-sprocket-3-8-06b-10t-30t-pitch-9-252mm-rough-bore","title":"304 SS Roller Chain Drive Sprocket 3\/8\" 06B 10T - 30T Pitch 9.252mm Rough Bore","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e304 Stainless Steel 06B Roller Chain Sprocket — Corrosion-Resistant Drive for Demanding Environments\u003c\/h2\u003e\n\u003cp\u003eWhen a standard carbon-steel sprocket corrodes, seizes, or contaminates your process, the entire drive train pays the price. Engineers, fabricators, and serious DIY builders who work in wet, washdown, food-adjacent, or outdoor environments need a sprocket that holds its geometry and surface integrity over thousands of operating hours — not one that rusts after the first rain. The 304 SS Roller Chain Drive Sprocket is machined for 3\/8\" (06B) roller chain and is available in 10T through 30T tooth counts, letting you dial in the exact speed ratio your application demands.\u003c\/p\u003e\n\u003cp\u003eEach sprocket is manufactured from 304 stainless steel, offering a balance of corrosion resistance, machinability, and structural rigidity. The bore is supplied in rough-bore (unfinished) form, ready for custom boring, keyway cutting, or set-screw fitting to your specific shaft diameter. The 06B chain standard specifies a pitch of 9.525 mm (3\/8\"), with roller diameter typically 6.35 mm (0.250\") and inner plate width typically 5.72 mm (0.225\"). Sprocket outer diameter scales with tooth count, ranging from approximately 38 mm (1.50\") at 10T to approximately 95 mm (3.74\") at 30T.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include light-duty conveyor drives for food processing and washdown lines, replacement sprockets for agricultural equipment exposed to moisture, custom-ratio drive systems in robotics and automation builds, and marine or coastal machinery where salt-air corrosion is a constant concern. Search terms like \"stainless steel 06B sprocket rough bore,\" \"3\/8 pitch roller chain sprocket 304 SS,\" and \"corrosion resistant chain drive sprocket\" all lead here.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔗\u003c\/span\u003e \u003cstrong\u003eChain Compatibility:\u003c\/strong\u003e Designed for \u003cstrong\u003e3\/8\" (06B) British Standard Roller Chain\u003c\/strong\u003e — 9.525 mm pitch. Also compatible with the optional \u003cstrong\u003e3\/8\" 06B Chain 1.5 m\u003c\/strong\u003e variant listed above.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These 304 SS 06B Roller Chain Sprockets\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🦀\u003c\/span\u003e \u003cstrong\u003e304 Stainless Steel Construction\u003c\/strong\u003e — Resists oxidation, rust, and chemical attack in wet, washdown, and outdoor environments without surface coatings that can flake or wear away.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003e06B \/ 3\/8\" Pitch Compliance\u003c\/strong\u003e — Machined to BS\/ISO 06B chain geometry (9.525 mm pitch), ensuring smooth engagement and minimal wear on standard 3\/8\" roller chain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eRough Bore Ready for Custom Fitting\u003c\/strong\u003e — Unfinished bore allows machinists and fabricators to bore, ream, or broach to any required shaft diameter and keyway specification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003eWide Tooth-Count Range (10T – 30T)\u003c\/strong\u003e — Select the exact tooth count to achieve your target speed ratio; finer increments give you precise control over output RPM and torque multiplication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e \u003cstrong\u003eConsistent Tooth Profile Geometry\u003c\/strong\u003e — Tooth flanks are machined to standard involute profile, distributing chain load evenly across multiple teeth and extending both sprocket and chain service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e \u003cstrong\u003eSold Individually or with Matching Chain\u003c\/strong\u003e — Available as a sprocket-only unit (10T–30T) or bundled with a 1.5 m length of 3\/8\" 06B roller chain for a complete drive solution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — 06B Roller Chain Sprocket\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eChain Standard\u003c\/th\u003e\n\u003ctd\u003eBS\/ISO 06B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChain Pitch\u003c\/th\u003e\n\u003ctd\u003e9.525 mm (3\/8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoller Diameter\u003c\/th\u003e\n\u003ctd\u003e6.35 mm (0.250\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Plate Width\u003c\/th\u003e\n\u003ctd\u003e5.72 mm (0.225\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTooth Count Options\u003c\/th\u003e\n\u003ctd\u003e10T, 11T, 12T, 13T, 14T, 15T, 16T, 17T, 18T, 19T, 20T, 21T, 22T, 23T, 24T, 25T, 26T, 27T, 28T, 29T, 30T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApproximate OD (10T)\u003c\/th\u003e\n\u003ctd\u003e~38 mm (~1.50\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApproximate OD (20T)\u003c\/th\u003e\n\u003ctd\u003e~63 mm (~2.48\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApproximate OD (30T)\u003c\/th\u003e\n\u003ctd\u003e~95 mm (~3.74\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Type\u003c\/th\u003e\n\u003ctd\u003eRough Bore (unfinished — custom machining required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub Style\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub Length\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eNatural (uncoated stainless)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStrand\u003c\/th\u003e\n\u003ctd\u003eSingle strand (simplex)\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\u003eHow do I choose the right tooth count for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe tooth count (T) determines your drive ratio. Divide the driver sprocket teeth by the driven sprocket teeth to get the speed ratio. For example, a 10T driver paired with a 20T driven sprocket gives a 2:1 reduction — the output shaft turns at half the input speed with twice the torque. Choose a smaller tooth count on the driver for speed reduction, or a larger tooth count for speed increase. As a general rule, avoid ratios greater than 6:1 on a single-stage chain drive.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat shaft diameter can this rough bore sprocket accommodate?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe rough bore is supplied undersized and must be machined to your required shaft diameter. The maximum bore diameter you can achieve depends on the hub diameter of the specific tooth-count variant — contact us to confirm the hub dimensions before ordering if you have a large shaft. Standard machining operations (boring, reaming, broaching for keyways, drilling for set screws) are all compatible with 304 stainless steel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs 304 stainless steel strong enough for my drive application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003e304 stainless steel has a tensile strength of approximately 515 MPa (75 ksi) and a yield strength of approximately 205 MPa (30 ksi). It is well-suited for light-to-medium duty chain drives, conveyor systems, and machinery operating at moderate speeds and loads. For heavy-duty industrial drives with high shock loads or elevated temperatures above 400 °C, consider 316 SS or carbon steel alternatives. If you are unsure whether 304 SS meets your load requirements, share your application details and we can advise.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill this sprocket resist corrosion in saltwater or washdown environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003e304 stainless steel provides solid corrosion resistance in freshwater, mild chemical, and intermittent washdown environments. In continuous saltwater immersion or chloride-heavy environments (such as swimming pool areas or coastal marine applications), 316 stainless steel offers superior pitting resistance due to its molybdenum content. For occasional salt-air or spray exposure, 304 SS performs reliably without surface treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this sprocket compatible with ANSI #35 chain or only BS 06B chain?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThis sprocket is machined specifically for \u003cstrong\u003eBS\/ISO 06B\u003c\/strong\u003e chain with a 9.525 mm (3\/8\") pitch. While ANSI #35 chain also has a 3\/8\" pitch, the roller diameter and inner plate width differ from the 06B standard, which means tooth geometry and engagement will not match correctly. Do not use this sprocket with ANSI #35 chain — use a dedicated ANSI #35 sprocket for that chain type.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this sprocket with the 06B chain listed as a variant option?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. The \u003cstrong\u003e3\/8\" 06B Chain 1.5 m\u003c\/strong\u003e variant listed on this page is fully compatible with all tooth-count sprocket variants. It provides 1.5 meters of matched 06B roller chain, which is sufficient for many small conveyor, drive, or tensioner builds. If you need a longer chain run, you can order multiple chain lengths and connect them with standard 06B connecting links (sold separately).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need any special tools to machine the rough bore?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMachining 304 stainless steel requires sharp, high-speed steel (HSS) or carbide tooling and adequate cutting fluid to prevent work hardening. A lathe is used for boring to diameter; a broaching press or keyway broach set is needed for keyways. Set-screw holes can be drilled and tapped on a drill press or mill. If you do not have access to machining equipment, most local machine shops can finish a rough bore sprocket quickly and affordably.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your \u003cstrong\u003eNumber of Teeth\u003c\/strong\u003e above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"10T","offer_id":52423349600530,"sku":"GLFBNHHSHXJZC3029x1","price":13.04,"currency_code":"USD","in_stock":true},{"title":"11T","offer_id":52423349633298,"sku":"GLFBNHHSHXJZC3030x1","price":14.27,"currency_code":"USD","in_stock":true},{"title":"12T","offer_id":52423349666066,"sku":"GLFBNHHSHXJZC3031x1","price":14.95,"currency_code":"USD","in_stock":true},{"title":"13T","offer_id":52423349698834,"sku":"GLFBNHHSHXJZC3032x1","price":15.76,"currency_code":"USD","in_stock":true},{"title":"14T","offer_id":52423349731602,"sku":"GLFBNHHSHXJZC3033x1","price":16.99,"currency_code":"USD","in_stock":true},{"title":"15T","offer_id":52423349764370,"sku":"GLFBNHHSHXJZC3034x1","price":18.07,"currency_code":"USD","in_stock":true},{"title":"16T","offer_id":52423349797138,"sku":"GLFBNHHSHXJZC3035x1","price":19.3,"currency_code":"USD","in_stock":true},{"title":"17T","offer_id":52423349829906,"sku":"GLFBNHHSHXJZC3036x1","price":20.6,"currency_code":"USD","in_stock":true},{"title":"18T","offer_id":52423349862674,"sku":"GLFBNHHSHXJZC3037x1","price":21.88,"currency_code":"USD","in_stock":true},{"title":"19T","offer_id":52423349895442,"sku":"GLFBNHHSHXJZC3038x1","price":23.32,"currency_code":"USD","in_stock":true},{"title":"20T","offer_id":52423349928210,"sku":"GLFBNHHSHXJZC3039x1","price":24.68,"currency_code":"USD","in_stock":true},{"title":"21T","offer_id":52423349960978,"sku":"GLFBNHHSHXJZC3040x1","price":25.96,"currency_code":"USD","in_stock":true},{"title":"22T","offer_id":52423349993746,"sku":"GLFBNHHSHXJZC3041x1","price":27.05,"currency_code":"USD","in_stock":true},{"title":"23T","offer_id":52423350026514,"sku":"GLFBNHHSHXJZC3042x1","price":28.55,"currency_code":"USD","in_stock":true},{"title":"24T","offer_id":52423350059282,"sku":"GLFBNHHSHXJZC3043x1","price":30.59,"currency_code":"USD","in_stock":true},{"title":"25T","offer_id":52423350092050,"sku":"GLFBNHHSHXJZC3044x1","price":33.44,"currency_code":"USD","in_stock":true},{"title":"26T","offer_id":52423350124818,"sku":"GLFBNHHSHXJZC3045x1","price":34.61,"currency_code":"USD","in_stock":true},{"title":"27T","offer_id":52423350157586,"sku":"GLFBNHHSHXJZC3046x1","price":37.2,"currency_code":"USD","in_stock":true},{"title":"28T","offer_id":52423350190354,"sku":"GLFBNHHSHXJZC3047x1","price":38.69,"currency_code":"USD","in_stock":true},{"title":"29T","offer_id":52423350223122,"sku":"GLFBNHHSHXJZC3048x1","price":42.42,"currency_code":"USD","in_stock":true},{"title":"30T","offer_id":52423350255890,"sku":"GLFBNHHSHXJZC3049x1","price":50.31,"currency_code":"USD","in_stock":true},{"title":"3\/8\" 06B Chain 1.5m","offer_id":52423350288658,"sku":"GLFBNHHGLBZSJ073431x1","price":69.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of8_ed018ec7-b983-4d85-a69e-3c46ef507f3c.jpg?v=1782820297","url":"https:\/\/homediyer.com\/products\/304-ss-roller-chain-drive-sprocket-3-8-06b-10t-30t-pitch-9-252mm-rough-bore","provider":"HomeDIYer","version":"1.0","type":"link"}