{"product_id":"self-aligning-bearing-1200-1201-1202-1203-deep-groove-radial-ball-bearings","title":"Self-Aligning Bearing 1200 1201 1202 1203 Deep Groove Radial Ball Bearings","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eSelf-Aligning Ball Bearings 1200–1203 — Deep Groove Radial Precision for DIY Machinery\u003c\/h2\u003e\n\u003cp\u003eMisaligned shafts and vibrating assemblies put enormous stress on standard bearings, leading to premature failure and costly downtime. Whether you're a hobbyist rebuilding a motor, a maker fabricating a custom conveyor, or a technician maintaining light industrial equipment, the 1200–1203 series self-aligning ball bearings are engineered to compensate for shaft misalignment and absorb radial loads without binding.\u003c\/p\u003e\n\u003cp\u003eThis listing covers four standard bearing numbers — 1200, 1201, 1202, and 1203 — each featuring a double-row ball design with a spherical outer raceway that allows angular misalignment of typically 2°–3°. Inner diameters range from 10 mm (0.394 in) to 17 mm (0.669 in), outer diameters from 30 mm (1.181 in) to 40 mm (1.575 in), and widths from 9 mm (0.354 in) to 12 mm (0.472 in). Constructed from chrome steel (GCr15) with a precision-ground raceway for consistent load distribution.\u003c\/p\u003e\n\u003cp\u003eTypical applications include small electric motor shafts where slight angular deviation is unavoidable, DIY belt-driven conveyor systems requiring radial load support, agricultural equipment spindles subject to vibration, and light-duty gearbox assemblies in maker and workshop projects. Long-tail use cases: self-aligning bearing for electric motor rebuild, 1200 series radial ball bearing for conveyor shaft, double-row ball bearing for DIY gearbox.\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 Fits standard 1200–1203 bearing housings and shafts. Verify your bore diameter (ID), outer diameter (OD), and width before ordering. Select your size from the variant options above.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Self-Aligning Ball Bearings\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e \u003cstrong\u003eDouble-Row Self-Aligning Design\u003c\/strong\u003e\u003cbr\u003eThe spherical outer raceway allows angular misalignment of typically 2°–3°, preventing binding and extending service life on shafts that flex or deflect under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003eFour Standard Sizes in One Listing\u003c\/strong\u003e\u003cbr\u003eChoose from 1200 (10×30×9 mm), 1201 (12×32×10 mm), 1202 (15×35×11 mm), or 1203 (17×40×12 mm) — all interchangeable with ISO-standard housings of the same designation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e \u003cstrong\u003eChrome Steel (GCr15) Construction\u003c\/strong\u003e\u003cbr\u003ePrecision-ground chrome steel raceways deliver consistent hardness (typically HRC 60–64) and fatigue resistance for sustained radial load applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003ePrecision-Ground Raceways\u003c\/strong\u003e\u003cbr\u003eTight dimensional tolerances ensure smooth rotation, reduced vibration, and predictable load ratings — critical for motors, spindles, and conveyor shafts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e \u003cstrong\u003eDrop-In Replacement Compatibility\u003c\/strong\u003e\u003cbr\u003eDimensionally compliant with ISO 15 \/ DIN 630 standards for 1200-series self-aligning bearings, making these a direct drop-in for most OEM and aftermarket housings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e \u003cstrong\u003eFlexible Quantity Options\u003c\/strong\u003e\u003cbr\u003eAvailable in single-piece quantities so you can order exactly what your project requires — no minimum bulk commitment needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Self-Aligning Ball Bearings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Series\u003c\/th\u003e\n\u003ctd\u003e1200 \/ 1201 \/ 1202 \/ 1203\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eDouble-Row Self-Aligning Ball Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Diameter (ID)\u003c\/th\u003e\n\u003ctd\u003e10 mm \/ 12 mm \/ 15 mm \/ 17 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (OD)\u003c\/th\u003e\n\u003ctd\u003e30 mm \/ 32 mm \/ 35 mm \/ 40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth (Thickness)\u003c\/th\u003e\n\u003ctd\u003e9 mm \/ 10 mm \/ 11 mm \/ 12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eChrome Steel (GCr15)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRaceway Hardness\u003c\/th\u003e\n\u003ctd\u003eTypically HRC 60–64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAngular Misalignment\u003c\/th\u003e\n\u003ctd\u003eTypically 2°–3°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRow Configuration\u003c\/th\u003e\n\u003ctd\u003eDouble Row\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandard\u003c\/th\u003e\n\u003ctd\u003eISO 15 \/ DIN 630\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCage Material\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDynamic Load Rating (C)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStatic Load Rating (C0)\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\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 bearing number — 1200, 1201, 1202, or 1203?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eSelect based on your shaft's inner diameter (bore): 1200 fits a 10 mm shaft, 1201 fits 12 mm, 1202 fits 15 mm, and 1203 fits 17 mm. Also confirm the outer diameter and width match your housing before ordering. Use the variant selector above to pick your size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat load types can these self-aligning ball bearings handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese are designed primarily for radial loads with moderate axial (thrust) loads. The double-row ball configuration increases radial load capacity compared to single-row designs. They are not recommended for heavy axial-only applications — for those, consider thrust bearings instead.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow much angular misalignment can these bearings tolerate?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe spherical outer raceway allows angular misalignment of typically 2°–3° relative to the shaft axis. This makes them well-suited for applications where shaft deflection, housing bore misalignment, or mounting imprecision is unavoidable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings corrosion-resistant?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eStandard chrome steel (GCr15) bearings offer moderate corrosion resistance suitable for dry or lightly oiled indoor environments. For wet, humid, or chemically exposed environments, consider stainless steel bearings or apply appropriate grease\/sealant. Contact us to confirm if a sealed or stainless variant is available for your application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these compatible with standard bearing pullers and installation tools?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. All four sizes conform to ISO 15 \/ DIN 630 dimensional standards, so standard bearing pullers, press-fit tools, and induction heaters sized for the respective bore and OD will work correctly. Always press on the inner ring when installing onto a shaft, and on the outer ring when pressing into a housing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these in electric motors or conveyor systems?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes — these are a common choice for small electric motor rebuilds, belt-driven conveyor shafts, and light-duty gearbox assemblies. The self-aligning feature is especially valuable in motors where the shaft may flex slightly under load or where housing alignment is imperfect.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need to add grease before installation?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eOpen (unshielded) variants should be packed with appropriate bearing grease before installation. If your bearing arrives pre-greased or shielded, it is ready to install. Check the variant description or contact us to confirm the lubrication state of your specific size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your ID×OD×Thickness size above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"1200 (10*30*9mm) \/ 1pcs","offer_id":52410627916050,"sku":"FXLDGZCWJ1620x1","price":5.83,"currency_code":"USD","in_stock":true},{"title":"1201 (12*32*10mm) \/ 1pcs","offer_id":52410627948818,"sku":"FXLDGZCWJ1621x1","price":6.6,"currency_code":"USD","in_stock":true},{"title":"1202 (15*35*11mm) \/ 1pcs","offer_id":52410627981586,"sku":"FXLDGZCWJ1622x1","price":7.28,"currency_code":"USD","in_stock":true},{"title":"1203 (17*40*12mm) \/ 1pcs","offer_id":52410628014354,"sku":"FXLDGZCWJ1623x1","price":9.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of5_eb72cbd1-d320-455c-92c8-e76dd68222b3.jpg?v=1782481857","url":"https:\/\/homediyer.com\/products\/self-aligning-bearing-1200-1201-1202-1203-deep-groove-radial-ball-bearings","provider":"HomeDIYer","version":"1.0","type":"link"}