Frameless motors consist of a wound stator and a separate permanent-magnet rotor. They do not include the additional components that are part of a traditional housed servo motor — the motor housing, endbells. bearings, output shaft, cable connectors, feedback device or brake.

By eliminating the need to design your application to accommodate the extra components of a traditional housed servo motor, frameless motors enable you to engineer the most compact and lightest possible motion application.

Kollmorgen frameless motors provide industry-leading torque density, precision and efficiency in the most compact package. Our frameless motors are ideal for rotary actuators, submersible propulsion systems, flight control surface actuators, sensor gimbals, robot and cobot joints, or any application that requires ultimate precision, power and reliability in a compact application design.

When you can’t find the ideal-fit housed motor, frameless is your best choice. Learn more about what is a frameless motor in our Technologies Explained series.

TBM2G Series Frameless

These next-generation frameless motors deliver high torque density for your most compact, lightest electromagnetic package, standard sizing for harmonic gearing, and scalable design to keep you on top of your global production needs.

KBM Series Frameless

The KBM series offers high performance, long life, simple installation in a motor kit that can be embedded directly in your mechanical design. A huge selection of standard motors and cost-effective modifications ensure a perfect fit.

TBM Series Frameless

Our TBM series provides direct drive frameless motors designed to be directly embedded in the mechanical structure of your systems, minimizing weight, size and inertia without sacrificing performance.

RBE Series Frameless

The frameless configuration of these relatively high-torque, low-speed, pancake-style motors eliminates shaft, bearings, endbells and couplings for reduced volume, weight and complexity when integrated directly with the load.

Product Selection

We offer a comprehensive range of Kollmorgen components and products, including drives, servo motors, and more. Please browse our complete product catalog to find the specific models you require. Kollmorgen drives are now available for online purchase, helping you enhance your operational efficiency.

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