Kunshan Chuanna Hydraulic Fittings Co., Ltd. -- Main Structure and Characteristics of Traveling Reducer

2025-07-01

The main transmission structure of the walking reducer consists of planetary gears, sun gears, and external gear rings

Due to structural reasons, the minimum single-stage reduction ratio of a walking reducer is 3, and the maximum generally does not exceed 10. Common reduction ratios are: 3, 4, 5, 6, 8, 10. The number of stages of a reducer generally does not exceed 3, but some customized reducers with large reduction ratios have 4 stages

Compared to other reducers, planetary gear reducers feature high rigidity, high precision (single-stage accuracy can be within 1 minute), high transmission efficiency (single-stage efficiency is between 97% and 98%), high torque/volume ratio, and are maintenance-free for life

Due to these characteristics, most walking reducers are installed on stepper motors and servo motors to reduce speed, increase torque, and match inertia

The rated input speed of the reducer can reach up to 18,000 rpm or higher (depending on the size of the reducer; the larger the reducer, the lower the rated input speed). The output torque of industrial-grade traveling reducers generally does not exceed 2,000 Nm, while specially made ultra-high torque traveling reducers can achieve over 10,000 Nm. The operating temperature is generally around -25°C to 100°C, and can be adjusted by changing the lubricating grease