{"product_id":"rotor-clip-sh-137st-zd-external-retaining-ring-1-3-8-in","title":"Rotor Clip SH-137ST Zd External Retaining Ring 1-3\/8 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ROTOR CLIP SH-137ST ZD is an external retaining ring engineered for 1-3\/8 inch diameter shafts. It seats in a precision-cut external groove to axially retain components on a shaft without threads or other fastening hardware. Made from SAE 1060-1090 carbon steel with a yellow zinc dichromate finish, it delivers corrosion resistance suitable for general industrial and mechanical service environments. Hardness runs 47-52 HRC, giving the ring the spring-back and load capacity expected from a quality snap ring. Groove width is 0.056 inches and ring thickness is 0.050 inches. Licensed machinists, millwrights, and maintenance technicians are the typical installers.\u003c\/p\u003e\n\u003cp\u003eThis retaining ring fits applications where a 1-3\/8 inch shaft requires positive axial retention of bearings, gears, pulleys, or similar rotating or sliding components. The zinc dichromate finish makes it suitable for light-duty outdoor or moisture-exposed assemblies where bare steel would corrode. It is used across HVAC equipment assemblies, pumps, motors, and general mechanical systems where a groove diameter of 1.291 inches is machined to specification. The 1.800 inch free outside diameter allows ring compression and insertion with standard external snap ring pliers.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 1-3\/8 inch shaft diameter with a 1.291 inch groove diameter\u003c\/li\u003e\n  \u003cli\u003eSAE 1060-1090 carbon steel construction, hardness 47-52 HRC\u003c\/li\u003e\n  \u003cli\u003eYellow zinc dichromate finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eGroove width 0.056 inches with a tolerance of 0.000 to 0.004 inches\u003c\/li\u003e\n  \u003cli\u003eRing thickness 0.050 inches, tolerance -0.002 to 0.002 inches\u003c\/li\u003e\n  \u003cli\u003eCompliant with SAE 1060-1090, UNS G10600-G10900, and ISO 13485:2015 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use on shafts machined to a 1-3\/8 inch nominal diameter with an external groove diameter of 1.291 inches, a groove width of 0.056 inches, and a groove depth of 0.042 inches per standard external retaining ring groove specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires standard external snap ring pliers sized for the 1.800 inch free outside diameter. De-energize and lock out all equipment before servicing any shaft assembly. Verify groove dimensions match the ring specifications before installation — an undersized or oversized groove can cause ring ejection under load. Consult applicable machinery safety standards and equipment service manuals before disassembly.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShaft Diameter\u003c\/strong\u003e: 1.375 inches (1-3\/8 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGroove Diameter\u003c\/strong\u003e: 1.291 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGroove Diameter Tolerance\u003c\/strong\u003e: -0.004 to 0.004 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGroove Width\u003c\/strong\u003e: 0.056 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGroove Width Tolerance\u003c\/strong\u003e: 0.000 to 0.004 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGroove Depth\u003c\/strong\u003e: 0.042 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree Diameter\u003c\/strong\u003e: 1.272 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree Outside Diameter\u003c\/strong\u003e: 1.800 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRing Thickness\u003c\/strong\u003e: 0.050 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRing Thickness Tolerance\u003c\/strong\u003e: -0.002 to 0.002 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: SAE 1060-1090 Carbon Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 1060\/1090\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 47-52 HRC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Yellow Zinc Dichromate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: SAE 1060-1090, UNS G10600-G10900, ISO 13485:2015\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ROTOR CLIP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SH-137ST ZD\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ROTOR CLIP","offers":[{"title":"Default Title","offer_id":51690827645234,"sku":"SH-137ST ZD","price":582.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/34331e50a8ad745e1a46c29a2b722493_7532c2c2-116d-46c3-b269-ebbde0cc790c.jpg?v=1788275822","url":"https:\/\/voomisupply.com\/products\/rotor-clip-sh-137st-zd-external-retaining-ring-1-3-8-in","provider":"Voomi Supply","version":"1.0","type":"link"}