Jaure® TCB® barrel couplings proves an ideal choice in crane lifting mechanisms. The couplings effectively connects the cable drum with the gearbox output shaft, as well as in winch conveyors and platform hoists. The gearbox output shaft when rigidly connected to the drum in a lifting mechanism, supported between points, originates a statically indeterminate case. This particular type of mounting emphasizes on special care in alignment and leveling. making it a difficult task practically.
Any inaccuracy in mounting, deformations in structures and wear in moving parts, leads to enormous additional forces, especially in the gearbox output shaft, resulting in alternative bending loads leading to breakage from fatigue and faults in bearings and gear wheels. The barrel coupling, installed between the gearbox and cable drum, serves as an articulated joint, providing a statically determinate connection and prevents the occurrence of high bending moments.