{"product_id":"zf34c-forged-sun-gear-shaft","title":"ZF34C Forged Sun Gear Shaft","description":"\u003ch2\u003eZF34C Forged Sun Gear Shaft Manufacturing\u003c\/h2\u003e\n\u003cp\u003eThis sun gear shaft is manufactured to customer drawings for planetary gear and power-transmission assemblies. It combines a forged shaft form, gear geometry and controlled machined features in one component. The manufacturing and inspection plan is therefore built around the released drawing, gear quality requirement, datum structure and specified heat-treated condition.\u003c\/p\u003e\n\u003ch3\u003eVerified component specification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e ZF34C alloy steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStarting form:\u003c\/strong\u003e Forged blank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat treatment:\u003c\/strong\u003e Quenching and tempering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e HB 228–263.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensional control:\u003c\/strong\u003e Outer-diameter tolerance of 20 μm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear accuracy:\u003c\/strong\u003e Grade 8.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManufacturing process\u003c\/h3\u003e\n\u003cp\u003eProcess planning begins with review of the forged blank, machining allowance, gear data and functional datums. The route can coordinate forging, turning, gear cutting, quenching and tempering, finish machining and inspection. The exact operation sequence is confirmed against the drawing so that the specified heat-treated condition, Grade 8 gear requirement and controlled shaft diameter can be evaluated together.\u003c\/p\u003e\n\u003ch3\u003eQuenching and tempering requirements\u003c\/h3\u003e\n\u003cp\u003eThe specified hardness range for this part is HB 228–263 after quenching and tempering. The RFQ should identify the applicable hardness test method and locations, together with any drawing requirements for mechanical properties, distortion control or protected areas. Requirements not stated on the released drawing should be confirmed by the customer before the production route is finalized.\u003c\/p\u003e\n\u003ch3\u003eGear and dimensional inspection\u003c\/h3\u003e\n\u003cp\u003eInspection planning can cover Grade 8 gear accuracy, tooth and datum relationships, outside diameter, runout, faces, shoulders, surface finish and HB hardness. When required by the purchase specification, production documentation can include material certificates, forging records, heat-treatment records, dimensional reports, gear inspection results and agreed traceability records. See our \u003ca href=\"\/pages\/quality-inspection\"\u003equality inspection and process-control approach\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eApplications and design responsibility\u003c\/h3\u003e\n\u003cp\u003eSun gear shafts are used within planetary and related power-transmission assemblies. The customer defines mating gear geometry, torque, speed, lubrication, duty cycle, life target and validation requirements. Jinhua Machinery manufactures the component to the approved specification and agreed inspection plan.\u003c\/p\u003e\n\u003ch3\u003eRFQ information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2D\/3D drawing and applicable gear standard\u003c\/li\u003e\n\u003cli\u003eZF34C material specification and forged-blank requirements\u003c\/li\u003e\n\u003cli\u003eGear data, Grade 8 definition and inspection method\u003c\/li\u003e\n\u003cli\u003eQuench-and-temper and hardness requirements\u003c\/li\u003e\n\u003cli\u003eCritical datums, tolerances, runout and surface finish\u003c\/li\u003e\n\u003cli\u003ePrototype quantity, annual demand and delivery target\u003c\/li\u003e\n\u003cli\u003eRequired quality records and traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExplore our \u003ca href=\"\/pages\/gear-shafts\"\u003egear shaft manufacturing capabilities\u003c\/a\u003e or \u003ca href=\"\/pages\/contact\"\u003esend the drawing package to Jinhua Machinery\u003c\/a\u003e for review.\u003c\/p\u003e","brand":"Jinhua Machinery","offers":[{"title":"Default Title","offer_id":48110190723287,"sku":"(Overall Length：120~250mm Diameter：φ30~φ65)","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/1137\/1479\/files\/01_0df49a98-06f0-4c7b-900d-3c235ff1816b.jpg?v=1781486368","url":"https:\/\/jinhuamach.com\/products\/zf34c-forged-sun-gear-shaft","provider":"Jinhua Machinery","version":"1.0","type":"link"}