| 01 | Profile A — Precision Transmission Specialist | A cluster gear combines two or more gears on one shaft or in one integrated assembly; commonly used in compact transmissions and speed-reduction systems. | CNC turning, hobbing, shaping, gear shaving or grinding, spline machining, deburring. | Carburizing-grade alloy steel, through-hardening steel, stainless steel for selected applications. | Module 0.5–6 | Typically ISO 1328 Grade 6–8, subject to size and process route. | Carburizing, carbonitriding, induction hardening, tempering. | Gear inspection report, hardness profile, runout measurement, material certificate, dimensional report. | 4–8 weeks | Automotive components, industrial gearboxes, agricultural transmissions. |
| 02 | Profile B — High-Volume Automotive Supplier | Integrated gear sets reduce axial space and part count, making them suitable for manual, automated, and compact vehicle transmissions. | Closed-die forging, CNC machining, broaching, hobbing, heat treatment, gear finishing. | Low-carbon alloy steel and carburizing steel grades used for high-load transmission parts. | Module 1–4 | Typically ISO 1328 Grade 7–9 for production parts, depending on design requirements. | Carburizing and low-pressure carburizing; controlled quench and tempering. | Process capability study, PPAP-style documents, CMM results, gear-chart analysis, batch traceability. | 6–12 weeks | Large-volume programs requiring repeatability and documented process control. |
| 03 | Profile C — Custom Low-Volume Manufacturer | Cluster gears are manufactured as custom assemblies when standard gears cannot meet packaging, torque, or ratio requirements. | 5-axis CNC turning and milling, gear hobbing, wire cutting, prototype finishing. | Alloy steel, stainless steel, bronze mating components, engineering plastics for light-duty designs. | Module 0.3–5 | Typically ISO 1328 Grade 8–10 for prototypes and low-volume custom parts. | Vacuum heat treatment, carburizing, nitriding, induction hardening through qualified subcontractors or in-house lines. | First-article inspection, raw-material certificate, hardness report, profile and lead measurement. | 3–6 weeks | Engineering prototypes, replacement parts, and pilot production. |
| 04 | Profile D — Heavy-Duty Gearbox Manufacturer | Cluster gear assemblies distribute torque through multiple gear sections and are used in industrial reducers and heavy machinery. | Large-part turning, hobbing, shaping, milling, grinding, shot blasting, nondestructive testing. | Hardenable alloy steel, carburizing steel, nitriding steel, and selected cast or forged hubs. | Module 2–12 | Typically ISO 1328 Grade 7–10, depending on gear diameter and load class. | Carburizing, nitriding, induction hardening, quench and tempering. | Ultrasonic or magnetic-particle testing, hardness mapping, gear-contact pattern, dimensional inspection. | 8–16 weeks | Mining, construction equipment, conveyors, pumps, and marine drive systems. |
| 05 | Profile E — Small-Module Precision Factory | Small-module cluster gears provide compact power transmission for robotics, instrumentation, actuators, and precision mechanisms. | Micro hobbing, CNC turning, gear shaping, lapping, grinding, optical measurement. | Alloy steel, stainless steel, powder-metallurgy steel, and engineering plastics. | Module 0.15–2 | Typically ISO 1328 Grade 5–8 for selected small-module designs. | Carburizing, nitriding, vacuum hardening, or case hardening according to material. | Optical profile report, tooth-thickness data, concentricity report, surface-finish results. | 5–10 weeks | Robotics, medical equipment, laboratory devices, and compact actuators. |
| 06 | Profile F — Agricultural Transmission Supplier | Cluster gears support selectable speed ratios in tractors, harvesters, tillers, and other agricultural transmission systems. | Forging, CNC turning, hobbing, shaping, spline broaching, heat treatment, shot peening. | Medium- and high-strength alloy steels with wear-resistant case-hardened surfaces. | Module 1.5–8 | Typically ISO 1328 Grade 8–10, with strength and durability prioritized. | Carburizing, induction hardening, tempering, and shot peening. | Hardness report, torque or load-test records, spline gauge results, dimensional inspection. | 6–12 weeks | Agricultural machinery buyers seeking robust replacement or OEM components. |
| 07 | Profile G — CNC and Prototyping Partner | Prototype cluster gears validate tooth geometry, interference clearance, assembly fit, and transmission ratios before mass production. | CNC turning, milling, wire EDM, gear shaping, additive-assisted fixtures, manual finishing. | Aluminum for non-load-bearing trials, alloy steel, stainless steel, brass, and engineering polymers. | Module 0.3–4 | Typically ISO 1328 Grade 9–11 for prototypes unless finishing is specified. | Optional outsourced carburizing, nitriding, induction hardening, or stress relieving. | Prototype dimensional report, 3D measurement data, assembly test, and material declaration. | 2–5 weeks | Start-ups, R&D departments, and buyers requiring fast design iteration. |
| 08 | Profile H — Powder-Metal and Sintered Gear Producer | Sintered cluster gears can reduce machining waste and are suitable for moderate-load, high-volume compact mechanisms. | Powder compaction, sintering, sizing, steam treatment, machining of critical surfaces. | Iron-based powder alloys, nickel-alloyed sintered steel, stainless powder grades. | Module 0.3–3 | Typically ISO 1328 Grade 9–11; final accuracy depends on sizing and secondary machining. | Steam treatment, carburizing, sinter hardening, and resin or oil impregnation where applicable. | Density and porosity data, dimensional report, material composition, hardness, and functional test results. | 6–14 weeks | Cost-sensitive, high-volume applications with controlled loads and repeatable geometry. |
| 09 | Profile I — Export-Oriented Contract Manufacturer | Cluster gear assemblies are supplied against customer drawings, controlled bills of materials, and agreed inspection plans. | CNC machining, hobbing, broaching, grinding, assembly, packaging, and export documentation. | Alloy steel, stainless steel, cast iron hubs, bronze, and approved customer-specified materials. | Module 0.5–10 | Typically ISO 1328 Grade 7–10, subject to drawing requirements and inspection scope. | Carburizing, nitriding, induction hardening, tempering, and black oxide or phosphate finishing. | Inspection plan, certificate of conformity, material certificate, packing list, and batch traceability. | 5–12 weeks | International distributors and OEMs needing consolidated sourcing and export support. |
| 10 | Profile J — Integrated Gear Assembly Supplier | The supplier delivers matched cluster gears, shafts, spacers, synchronizer interfaces, and assembled subcomponents. | Gear cutting, shaft machining, spline production, grinding, balancing, assembly, and functional testing. | Carburizing steel, alloy steel, stainless steel, bronze, and wear-resistant bushing materials. | Module 0.8–7 | Typically ISO 1328 Grade 7–10, with assembly tolerances agreed separately. | Carburizing, induction hardening, nitriding, tempering, and surface protection coatings. | Assembly runout, backlash measurement, noise or vibration test, torque test, and final inspection report. | 6–14 weeks | Buyers seeking fewer vendors, reduced assembly work, and ready-to-install transmission modules. |
