{"product_id":"carburized-precision-steering-shaft","title":"Carburized Precision Steering Shaft","description":"\u003ch2\u003eCarburized Precision Steering Shaft Manufacturing\u003c\/h2\u003e\n\u003cp\u003eThis steering shaft is manufactured to customer drawings for automotive and industrial steering assemblies requiring controlled spline geometry, surface hardness and dimensional accuracy. The component combines external and internal splines with ground and turned features, so datum relationships, carburizing response and final dimensional control are reviewed as one manufacturing program.\u003c\/p\u003e\n\u003ch3\u003eVerified component specification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 16MnCr5HH or ZF6 alloy steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpline processing:\u003c\/strong\u003e Spline hobbing for external and internal splines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachining:\u003c\/strong\u003e Turning and grinding for additional shaft features.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat treatment:\u003c\/strong\u003e Carburizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface hardness:\u003c\/strong\u003e HRC 59–63.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase depth:\u003c\/strong\u003e 0.4–0.7 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore strength:\u003c\/strong\u003e At least 900 N\/mm².\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensional control:\u003c\/strong\u003e Outer-diameter tolerance of 8 μm, roundness of 0.003 mm and surface roughness of Rz 0.7.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManufacturing process\u003c\/h3\u003e\n\u003cp\u003ePlanning begins with review of the released material standard, spline definitions, datums and critical characteristics. External and internal splines are produced by spline hobbing. Turning establishes the specified shaft geometry, while grinding supports the controlled final features identified in the drawing. Carburizing is coordinated with machining allowance and final inspection so the part can be assessed against its hardness, case-depth, roundness, roughness and diameter requirements.\u003c\/p\u003e\n\u003ch3\u003eCarburizing and material control\u003c\/h3\u003e\n\u003cp\u003eThe current specification calls for HRC 59–63 surface hardness, 0.4–0.7 mm case depth and core strength of at least 900 N\/mm². The inquiry should identify the required test methods, test positions, case-depth definition and any protected areas. Jinhua Machinery reviews these details with the 16MnCr5HH or ZF6 material requirement before confirming the production plan.\u003c\/p\u003e\n\u003ch3\u003ePrecision inspection\u003c\/h3\u003e\n\u003cp\u003eInspection can include spline geometry, outer diameter, roundness, Rz surface roughness, datum-related features, surface hardness, case depth and the agreed core-property evidence. When required by the purchase specification, documentation can include material certificates, heat-treatment records, dimensional reports, spline inspection results and agreed control or traceability records. See the \u003ca href=\"\/pages\/quality-inspection\"\u003equality inspection and process-control\u003c\/a\u003e page for our wider workflow.\u003c\/p\u003e\n\u003ch3\u003eApplications and project inputs\u003c\/h3\u003e\n\u003cp\u003eThis type of carburized shaft is reviewed for steering assemblies where spline engagement, hardened surfaces and precision shaft features must be controlled together. The customer defines the load case, mating parts, functional safety requirements and final design validation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2D drawing and available 3D model\u003c\/li\u003e\n\u003cli\u003eMaterial grade and governing standard\u003c\/li\u003e\n\u003cli\u003eExternal and internal spline definitions\u003c\/li\u003e\n\u003cli\u003eCarburizing, hardness, case-depth and core requirements\u003c\/li\u003e\n\u003cli\u003eCritical datums, tolerances, roundness and roughness\u003c\/li\u003e\n\u003cli\u003ePrototype quantity, annual demand and delivery schedule\u003c\/li\u003e\n\u003cli\u003eInspection documents, certificates and traceability requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eReview related \u003ca href=\"\/pages\/spline-shafts\"\u003espline shaft manufacturing capabilities\u003c\/a\u003e or \u003ca href=\"\/pages\/contact\"\u003econtact Jinhua Machinery\u003c\/a\u003e for a drawing-based quotation.\u003c\/p\u003e","brand":"Jinhua Machinery","offers":[{"title":"Default Title","offer_id":48110188789975,"sku":"(Overall Length：80~150mm Diameter：φ10~φ45)","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/1137\/1479\/files\/01_57c77237-c30e-4a9c-a5af-ccc0f418cc13.jpg?v=1781258883","url":"https:\/\/jinhuamach.com\/products\/carburized-precision-steering-shaft","provider":"Jinhua Machinery","version":"1.0","type":"link"}