{"product_id":"jarblue-6203-43-2rs-non-standard-ball-bearings-17x43x12mm-abec-1-2pcs","title":"JARBLUE 6203\/43 2RS Non-Standard Ball Bearing 17×43×12mm – 2pcs","description":"\n\u003ch2\u003eJARBLUE 6203\/43 2RS Non-Standard Ball Bearings — 17×43×12mm | ABEC-1 | 2-Piece Set\u003c\/h2\u003e\n\n\u003cp\u003eUpgrade your machinery with these precision-engineered \u003cstrong\u003eJARBLUE 6203\/43 2RS non-standard deep groove ball bearings\u003c\/strong\u003e. Designed for applications where standard sizing won't do, these 17×43×12mm bearings deliver consistent rotational performance, low friction, and long service life across a wide range of industrial and mechanical uses.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e JARBLUE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 6203\/43 2RS (174312)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 17mm (bore) × 43mm (outer diameter) × 12mm (width)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision Grade:\u003c\/strong\u003e ABEC-1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Nickel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface Roughness:\u003c\/strong\u003e Ra 0.8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeal Type:\u003c\/strong\u003e Double-rubber sealed (2RS) — keeps lubricant in and contaminants out\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e CE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Concern Chemicals:\u003c\/strong\u003e None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 2 pieces per pack\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eMade in Mainland China\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose These Bearings?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNon-Standard Sizing:\u003c\/strong\u003e The 17×43×12mm configuration fills the gap where standard 6203 (17×40×12mm) bearings don't fit — a precise solution for custom or specialty machinery.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDouble Rubber Seals (2RS):\u003c\/strong\u003e Both sides are sealed to retain grease and block dust, dirt, and moisture — extending operational life with minimal maintenance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSteel Construction:\u003c\/strong\u003e Robust steel races and balls ensure durability under radial and moderate axial loads.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNickel Coating:\u003c\/strong\u003e Adds a layer of surface protection against oxidation and mild corrosion.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSmooth \u0026amp; Quiet Operation:\u003c\/strong\u003e ABEC-1 precision grade ensures reliable, consistent rotation for motors, fans, conveyors, power tools, and more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Meets European conformity standards for quality and safety.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eElectric motors \u0026amp; generators\u003c\/li\u003e\n  \u003cli\u003ePower tools \u0026amp; hand tools\u003c\/li\u003e\n  \u003cli\u003eConveyor systems\u003c\/li\u003e\n  \u003cli\u003eAgricultural machinery\u003c\/li\u003e\n  \u003cli\u003ePumps \u0026amp; compressors\u003c\/li\u003e\n  \u003cli\u003eFans \u0026amp; blowers\u003c\/li\u003e\n  \u003cli\u003eCustom fabrication \u0026amp; repair projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 × JARBLUE 6203\/43 2RS Ball Bearings (17×43×12mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Find Useful\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-durable-gold-blade-nut-metal-universal-trimmer-accessories-anti-loosening-line-left-hand-thread-replacement-parts-1\"\u003e10pcs Durable Gold Blade Nut Metal Universal Trimmer Accessories\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-20mm-diamond-flat-grinding-wheel-dry-and-wet-use-heavy-duty-concrete-grinder-wheel-blue-vacuum-brazed\"\u003e10\/20mm Diamond Flat Grinding Wheel – Dry and Wet Use Heavy Duty\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-self-tapping-screws-m2-2-m4-8-phillips-wood-hinge\"\u003e10PCS Stainless Steel Self-Tapping Screws M2.2–M4.8 Phillips\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: What makes these bearings \"non-standard\" compared to a regular 6203 bearing?\u003c\/h4\u003e\n\u003cp\u003eA: A standard 6203 deep groove ball bearing has an outer diameter of 40mm. The JARBLUE 6203\/43 has an enlarged outer diameter of 43mm (while keeping the same 17mm bore and 12mm width), making it specifically engineered for housings or applications where a standard 6203 would be too loose or under-sized. Always verify your housing dimensions before ordering.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What does \"2RS\" mean on these ball bearings?\u003c\/h4\u003e\n\u003cp\u003eA: \"2RS\" stands for double rubber-sealed. Both sides of the bearing are fitted with rubber contact seals, which retain internal grease lubrication and prevent external contaminants like dust and moisture from entering the bearing. This makes them ideal for dusty or wet environments with minimal ongoing maintenance.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Are these bearings pre-lubricated?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. As double-sealed (2RS) bearings, they come pre-packed with grease from the factory. The seals keep the grease in place during operation, so no additional lubrication is required for most standard applications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What precision grade is ABEC-1, and is it right for my application?\u003c\/h4\u003e\n\u003cp\u003eA: ABEC-1 is the standard, entry-level precision tolerance grade suitable for general industrial machinery, power tools, motors, and similar applications where very high-speed or ultra-precise tolerances are not required. If your application demands tighter tolerances (e.g., high-speed spindles), consider higher ABEC grades. For most everyday mechanical uses, ABEC-1 provides reliable and cost-effective performance.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What makes these bearings \\\"non-standard\\\" compared to a regular 6203 bearing?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A standard 6203 deep groove ball bearing has an outer diameter of 40mm. The JARBLUE 6203\/43 has an enlarged outer diameter of 43mm (while keeping the same 17mm bore and 12mm width), making it specifically engineered for housings or applications where a standard 6203 would be too loose or under-sized. 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