100-7000KGS Heavy Duty Power Transmission Carbon Steel Forged Round Pin For Gearbox
100-7000KGS Heavy Duty Power Transmission Carbon Steel Forged Round Pin For Gearbox. Our heavy-duty forged round pins are available in a wide range of sizes from 100 kg to 7000 kg and are engineered for use in high-load power transmission systems and large-scale industrial gearboxes. Manufactured from premium carbon steel via open die forging, these pins provide outstanding tensile strength, fatigue resistance, and dimensional consistency. After heat treatment, they deliver excellent performance in high-torque, repetitive-motion environments, ensuring long service life and mechanical reliability.
| Material | 4140,4130,18CrNiMo7-6,4340,4330,1.7225,35# 45# 20CrMnTi 20CrNi2Mo 20CrMnMo 18CrNiMo7-6 42CrMo 20CrNo 35CrMo |
| 5 TON, 8 TON, 12 TON Hydralic hammer | |
| Apply for | Transmission main shaft is used for driving force |
| Forging+heat treatment+rough machining+finish machining | |
| Forging ratio | ≥3 |
| Delivery terms | Rough machining(N+T); finish machining(Q+T) |
| Test equipment | Spectrograph, UT device, tensile and impact test machine, metalloscope,external micrometer, bore dial indicator, hardness testing device and so on. |
| Service | Our service included the forging, process, heat treatment, finish machining, package, local logistics, customers clearance and maritime transport. We took the customer’s requirements as the principal thing, and pay attention on the products quality. |
Key Features:
Wide Weight Range: From 100 kg to 7000 kg, supporting small to ultra-heavy gear systems
High-Strength Carbon Steel: Offers superior tensile properties and shock resistance
Precision Forged: Open die forging ensures uniform structure and directional fiber flow
Heat Treated: Quenched and tempered for improved hardness and fatigue life
Machinability: Suitable for turning, milling, drilling, and keyway slotting
Custom Tolerances: Machined to drawing specifications for bore fits, ends, or surface profiles
Application Fields:
Industrial Gearboxes: Main transmission pins, gear connection shafts, locating pins
Wind Power Systems: Gear alignment pins and rotor-to-generator connections
Mining Equipment: Torque-transferring round pins for crushers and mill drives
Steel Plants & Press Lines: Forged pins used in couplings, rotary joints, and tool changers
Heavy Machinery: Linkage and rotating shaft applications in construction and material handling
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