Frameless motor

What is a frameless motor ? A frameless motor consists of rotor and stator components which are built into a machine assembly to transmit torque to a load. It is typically integrated with other components, including a housing, shafting, bearings, feedback device and other elements to complete the servo system. Frameless motors are rotor-and-stator subcomponent sets that aren’t prefixed in a traditional motor housing.

They don’t include an output shaft (or shaft-support bearings) either.

Instea it’s left to the OEM or design engineer to integrate the frameless motor stator and rotor directly onto the machine axis. That’s why the engines are a good match for printing and scanning equipment where velocity ripple is highly unwelcome. Small in size, the engines can be fitted into constricted spaces and allow for various mounting configurations. Hall effects may be offered as an option to provide feedback if an encoder is not selected for the application.

Build your own high performance motor with our Frameless Kit Motors. An ideal solution for machine designers looking for high performance in a small space at a low price. Parker can provide value added solutions to assist in the integration of our kits.

For direct drive torque motors inertia is low, which makes the motors very suitable for high spee acceleration applications with fast starts and stops. These frameless motors are a type of perma-nent-magnet synchronous motors. BEI Kimco’s frameless motor part set design allows for the motor to be fully integrated within the customer assembly resulting in the highest ratio of torque to volume.

In this configuration the motor ’s rotor and stator are housed within the customer’s “next higher” assembly utilizing a common shaft and bearing system. Met nominale koppels van Nm tot en met Nm en piekkoppels van Nm tot en met Nm zijn het krachtpaters. Door het dertigpolig motor ontwerp kunnen ze direct-drive in laagtoeren-applicaties worden ingezet, waardoor vertragingskasten overbodig zijn. Frameless HT torque motors are designed for direct axis integration in machine applications where component rotor-stator solutions are the better choice over housed motors. Performance of the standard HT frameless direct drive torque motors is summarized in the table below.

Maxon motor is een gerenommeerde leverancier van boxed motoren voor hoogwaardige toepassingen. Klanten, ook uit Nederlan vroegen echter steeds vaker om frameless motoren , vertelt Albert Slot, salesmanager voor de Benelux. Om klanten met een compleet palet te kunnen blijven bedienen, besloot maxon zelf frameless motoren te ontwikkelen.

Frameless BLDC motors allow for maximum integration with your assembly. Typical standard BLDC motors are structurally and mechanically self-supporting. The rotor is suspended inside the stator using end-caps at both ends.

Whatever apparatus needs to be attache is usually bolted onto the end-caps. Motion Control Products Ltd has the highest torque-density motors in the market at this time.

These Frameless Motor is an excellent solution for high-end robotics applications where high transmission ratios are not desired for safety or performance reasons. For many years there seems to have been an engineering mystique surrounding the integration of frameless motor part sets into high performance machine design. This has kept many machine design engineers from jumping in to embed these power and torque dense motor types into their applications. Frameless Kit Motor overview † The frameless motor allows for direct integration with a mechanical transmission device, eliminating parts that add size, complexity, response and settling time. The design engineer is not constrained to the mounting interface and shaft dimensions of a typical framed motor.

SKW-series frameless spindle servo motor kits are designed for integration in the mechanics of multi-spindle applications. They offer constant torque capabilities. When it does not make sense to implement a fully housed motor , rotor-stator part sets are a viable and economical solution.

Frameless permanent magnets brushless torque motors for direct drive STK Direct Drive motors have been designed for being integrated at the heart of servomechanisms with the aim to improve the performances of axis control of high torque motors. Our medium range motors are available with a wide range of options such as different winding types and a digital hall sensor.