Engineered for direct coupling with R/F/K/S series gearboxes. Eliminate flange adapters for a compact, high-efficiency drive integration.
Space is a premium asset on any automated production line. The RFKS Series removes the redundancy of standard IEC motors, eliminating bulky adapter plates and couplings.
Featuring a specialized oil seal configuration and custom shaft extension, this series is built for direct insertion into R (Helical), F (Parallel Shaft), K (Helical-Bevel), and S (Helical-Worm) gear reducers. Fully compliant with IE3 Premium Efficiency standards (IEC 60034-30-1), it delivers a shorter, lighter, and more direct power transmission solution.
Decode the JWmotor model number to quickly identify the specifications for a precise replacement.
Technical Specifications
JWMotor Product Range:
Technical DownloadsOperating Conditions
* Class H insulation is available for high-temperature environments.
* Power derating is required for high-altitude regions.
JWMotor offers you motor solutions with the following significant advantages
Integral Direct Mounting
The motor shaft extends directly into the gearbox to serve as the first-stage pinion. This design removes vibration risk caused by coupling misalignment and keeps transmission efficiency close to 100%.
Ultra-Compact Footprint
Compared with a standard motor plus flange adapter, the RFKS series reduces axial length by 10-20%. This matters for AGVs, conveyor lines, and packaging machinery.
Enhanced Leak-Proof Sealing
An optimized oil seal chamber in the motor end shield, with high-temperature FKM (Viton) oil seals, addresses oil seepage at the gearbox interface, including vertical mounting positions (V1/V3).
High Starting Torque
Optimized for heavy start-ups under load, such as hoists and conveyors, the rotor slot profile is engineered for high starting torque.
Industry Applications
FAQ
What are the mounting advantages of the RFKS series?
The RFKS series (R-Helical, F-Parallel Shaft, K-Bevel, S-Worm) offers a modular design. This allows flange, foot, or shaft mounting, so the drive can fit cramped industrial layouts.
How do I choose between the K-series and S-series gear motors?
The K-series (helical-bevel) offers higher efficiency, up to 95%, and longer life for heavy-duty tasks. The S-series (helical-worm) is more cost-effective and provides a self-locking feature for simple conveyor applications.
Are your RFKS gear motors interchangeable with European brands?
Yes. The RFKS series follows international standard dimensions, so it can replace many SEW-style or Nord-style gearboxes and reduce downtime during replacement.
