The PHF circular flange high-precision planetary reducer is equipped with ISO-9409 specification flange, integrated planetary gear carrier and output shaft, integrated gearbox, and full needle arrangement planetary gear needle bearings. The maximum size frame size can reach 255 mm. High torque output and high radial load capacity, with extremely low operating noise. The optimal backlash can reach 1 arc minute. The excellent product features of high efficiency, precision, reliability, and long lifespan are most suitable for high-performance applications of precise positioning and high dynamic motion control, especially in situations where precise repetitive positioning is required. The design of the tapered roller bearing allows for a bending torque of 6080 N and an axial load capacity of 21850 N. The PHF series is also particularly suitable for pairing with gear shafts and racks, providing a power medium for linear motion equipment. Suitable for metal cutting machines, wood processing equipment, machining center machines, and high dynamic motion control systems. The right angle (PHFR) also has superior performance and precision, and offers a maximum size frame size of up to 255 mm.