Friction torque limiter coupling, also commonly known as friction torque limiter, is a classic and reliable mechanical torque protection component for industrial transmission systems. It is widely applied in power trains with risks of material jamming, impact and overload, acting as the “mechanical fuse” of the transmission system.
During normal operation, torque is transmitted steadily via multi-plate friction assemblies. When load jamming or impact causes the actual torque to exceed the preset value, the friction surfaces slip smoothly to separate the driving end from the load end, preventing damage to core components such as reducers, main shafts, gears and frames from impact torque. After the overload fault is eliminated, torque transmission resumes automatically. No shear pin replacement is required, which effectively reduces downtime frequency and spare parts consumption and cuts equipment operation and maintenance costs.
✅ Product Features
Adjustable Torque & Flexible Adaptability: The slipping torque can be precisely set by tightening preload bolts. One single size covers multiple torque ranges to meet protection requirements of different equipment.
Steel Body, Wear & Impact Resistant: The main body is machined from high-quality alloy steel with blackening and hardening surface treatment. The multi-plate friction structure delivers high load capacity, suitable for heavy-duty and continuous impact working conditions.
Bidirectional Overload Protection: Slip protection works for both forward and reverse rotation. It features smooth slip response and stable repeated protection performance, ideal for equipment with fluctuating loads and frequent start-stop cycles.
Wide Compatibility for Installation: Adopting integrated flange design, it can be matched with pulleys, sprockets and flange couplings. Custom bore and keyway are available for non-standard applications, convenient for both new installation and retrofitting.
📌 Applicable Industries & Equipment
It is widely used in transmission scenarios including belt conveyors, bucket elevators, scraper conveyors, mixing equipment, packaging machinery, woodworking machinery, mining auxiliary equipment and metallurgical conveying lines. It replaces traditional shear-pin protection structures and is perfect for continuous production lines that aim to avoid frequent shutdowns for pin replacement.
Shanghai Jiteng Machinery Technology Co., Ltd. specializes in the R&D and manufacturing of transmission parts. We provide customized friction torque limiter coupling solutions according to customers’ working conditions, rotating speed, torque and installation space. Drawing-based customization is supported. We strictly control machining accuracy and friction material quality to deliver stable and long-term overload safety protection for industrial transmission.
