R series rigid tooth flank helical gear reducers own the characters of small size, large transmission torque, high efficiency of transmission, low energy consumption and superior performance.      Designed and manufactured on the basis of modular porfolio system, this type reducers have abundant combinations with motors, numbers of mounting positions, structures themes and a finer grade of transmission ratio, which meet the requiements of various working conditions and realize mechatronics.      The modular cell structure design being adopted which greatly reduced the classification and inventory of parts and thus the delivery cycle is significantly shortend.      The reducers’ housing, with ribs, are forged of high rigid cast iron. The rigid tooth flank gear adopts high-quality alloy steel, and is hardened with carburizing, quenching treatment and refined by grinding. So it has smooth drive, low noise, large load capacity and long service life.