MIKI PULLEY (THAI) CO., LTD.

BAUMANNFLEX

MIKI PULLEY's BAUMANNFLEX series offers a comprehensive range of metal coil spring couplings, engineered for superior flexibility, compact design, and high torque transmission with minimal backlash. These couplings effectively connect shafts by utilizing hubs joined by a precision-wound metal coil spring, often incorporating a unique three-layer coil structure to achieve both high torque capacity and a compact form factor. The series encompasses several distinct models tailored for specific requirements: the ZG model, a small-capacity type with zinc alloy hubs and spring steel coils; the LM model, featuring aluminum alloy hubs and spring/stainless steel coils, notable for its ultra-flexible design allowing significant angular deflection up to 14 degrees and high parallel/axial misalignment compensation; the MM model, a standard/coupling type with carbon steel hubs and piano wire/stainless steel coils; and the MF model, a standard/single-flange type also with stainless steel hubs and piano wire/stainless steel coils. Technically, BAUMANNFLEX couplings boast a maximum nominal torque of 220 N-m and accommodate bore diameters ranging from Φ3 to 35 mm. They are designed to handle various misalignments—parallel, angular, and axial—while maintaining high torsional stiffness. Operating temperatures vary by model, typically from -40°C to 120°C for ZG/LM and -30°C to 100°C for MM/MF, though MM/MF types are not waterproof. These RoHS-compliant couplings are widely applied in precision machinery across diverse industries, including induction motors, vacuum equipment, medical devices, and printing machinery, where precise and reliable power transmission is critical.

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