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China, Chinese Customized Casting Steel Ball Mill Trunnion Shaft Hollow Trunnion for Cement Plants1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Mining MachineryMining Machinery PartsBall Mill TrunnionHollow Shaft Trunnion
SHANGHAI TOTEM MACHINERY CO., LTD.
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Product Description Product DescriptionCustomized Casting Steel Ball Mill Trunnion Shaft Hollow Trunnion for Cement PlantsA trunnion is a short, stout cylindrical protrusion or shaft that is integrally cast, forged, or machined onto a component (such as a valve body, large bearing housing, or artillery barrel). Its primary function is to serve as a pivot point, providing a robust means for the supported component to rotate or tilt about a single axis. Trunnions are designed to withstand significant radial loads and moments.LengthLRange:>1mWeightKGRange>100kg/ Single PieceHeat Treatment Normalizing, Tempering, Induction Harden, etcTesting UT/MTTrademark TOTEM/OEMTransport Package Export package(steel frame, wooden box, etc.)Coaxiality ≤ 0.03 mmRoundness ≤ 0.02 mmDiameter Tolerance h7 / h8Working PrincipleThe trunnion works by providing a precisely machined cylindrical surface (the journal) that rotates within a matched bearing or bushing. The parent component is rigidly attached to the trunnion. When a moment or rotational force is applied to the component, it is transferred to the trunnion, causing it to rotate within its supports. The trunnion's strength and rigidity resist the applied loads, allowing for controlled pivotal movement while maintaining structural integrity.Function&ApplicationFunctionThe trunnion's primary function is to act as a fixed rotation axis for heavy or critical components. It translates the forces and moments acting on the component into shear and bending stresses within the trunnion itself, which are then transferred to the supporting structure.Applications·Valves: Supporting the rotational movement of large butterfly valves and ball valves.·Tunnel Boring Machines (TBMs): Serving as the pivot point for the cutterhead assembly.·Heavy Machinery: Used in excavator arms, industrial robots, and hydraulic cylinders.·Wind Turbine Main Shafts: Serving as a critical pivot and support component in the drivetrain.·Renewable Energy Machinery: Used in various power generation equipment requiring robust rotational support.·Gearbox Components: Providing precise pivot points within complex transmission systems.Core Features·High Load-Bearing Capacity: Designed with a large diameter-to-length ratio to support heavy radial loads and bending moments without failure.·Precise Alignment: Machined to tight tolerances, ensuring accurate alignment with supporting bearings or brackets, which minimizes wear and vibration.·Robust Mounting: Often features keyways, splines, or mounting holes to securely transfer torque and motion to/from the parent component.·Wear-Resistant Surfaces: The journal surfaces are often hardened (e.g., induction hardened) or coated to enhance durability and service life under oscillating or continuous rotation.Other Related Products About Totem. Contact UsShanghai Totem Machinery Co.,Ltd Made-in-China:https://cn-totem.en.made-in-china.com/ FAQQ.What type of your company?A.TOTEM is a technology-driven manufacturer expert in R&D and complex machining of medium-to-large precision parts. By strategically investing in or forming joint ventures with trusted foundries, forging plants, and processors, we have built deeply integrated partnerships. This ensures smooth production from raw materials to finished products and allows flexible handling of urgent orders through external cooperation, minimizing bottlenecks and delays. Q.What exactly is your machining capability? Is your equipment advanced?A.Our production base is equipped with comprehensive modern CNC machine tools, such as three-axis, four-axis, and five-axis machining centers, CNC lathes, milling machines, and grinding machines. We handle everything from simple to highly complex parts. Our technical team know each machine's capabilities and choose the best equipment and process to ensure precision and control costs from your drawings. Q.If the drawings I provide may contain design challenges or conflicts with actual manufacturing processes, can you handle them?A.We offer DFM analysis to spot potential issues early and suggest design modifications to reduce costs and improve manufacturability. Q.What is your quality control process?A.We ensure quality at every stage with precision inspections and advanced tools supported by third-party verification. Q.What is the entire collaboration process from inquiry to delivery?A.From inquiry to delivery: sharing requirements, technical review (DFM), quotation, production with updates, final inspection, and delivery. Q.What is your primary advantage over other suppliers?A.We provide not just parts but also manufacturing solutions, acting as your external expert team for seamless project execution. Q.How do we begin our first collaboration? What information is required?A.Send us your product drawings, materials, quantities, and budget.Our sales engineer will coordinate with you on the details.
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