R/F/K/S Series Gear Speed Reducers

Modular gear reducers for inline, parallel shaft, and right-angle industrial drive layouts.

Product Family Overview

Four Reducer Layouts in One Modular Family

Select the series by shaft layout, torque demand, mounting space, and motor configuration.

R/F/K/S Series at a Glance

Series	Transmission layout	Typical fit	Reference range
R Series	Inline helical	Straight-through drive, general machinery, conveyors, process equipment	0.12–160 kW / 85–18,000 N·m
F Series	Parallel shaft helical	Space-saving parallel shaft drive, hollow shaft, conveyor and material handling layouts	0.12–200 kW / 200–18,000 N·m
K Series	Helical-bevel right-angle	High-efficiency 90-degree drive, stronger right-angle torque transmission	0.12–160 kW / 200–18,000 N·m
S Series	Helical-worm right-angle	Compact and economical right-angle drive for basic industrial transmission	0.12–22 kW / 90–4,000 N·m

Engineering Features

The RFKS family is built around modular hardened gear reducer design. The four series differ in shaft layout and transmission structure, but share a common engineering direction: stable gear transmission, flexible configuration, and practical installation for industrial equipment.