7.57 - ミシンのための433.2kNトルクの螺旋形の産業変速機

7.57 - 433.2kN Torque Helical Industrial Gearbox For Sewing Machine 1. Product Characteristics A. The gear and gear shaft employs high-strength low-carbon alloy steel, with manufacturing method of gear hobbing, the thermal treatment of carburising & quenching, as well as gear grinding, the hardness of gear flank can be HRC58-62, which is high precision and good contact; B. Compact, light weight, durable lifetime, large carrying capacity; C. High transmission efficiency,