frequently asked questions

The higher the speed of the application, the more care is required in selecting the coupling(s). Quality, high-speed couplings are VERY expensive—beware of "sticker shock"! However, this is not one place to cut costs since a substandard coupling can effect the entire drive train configuration (see next question). Every element of the drive train assembly must be meticulously aligned and balanced and the couplings are a fundamental component.

To complement your torque transducer or dynamometer, Magtrol can provide you with a dedicated coupling for your application. Simply contact Magtrol with your application details, maximum torque, maximum speed and shaft dimensions of the motor (drive) and load.

For high-speed applications, fixed/supporting mounting is mandatory! In all supported installations, double-element or metal bellows couplings are recommended.

For safety reasons, suspended mounting should only be used for low-speed applications. Single-element couplings (selected in relation to torque, speed and transducer weight) are then employed to create a shorter drive train. Bellows couplings and double-element couplings are not suited for suspended (floating) installations.

The transducers have cylindrical centering seats on each side of the splined shaft. Use only the centering seats for centering, not the splined part. When a TMHS (high-speed) Transducer is ordered with flanges, Magtrol will balance the flanges on the shaft and note the angular position (of the flange to the shaft).

Vertical mounting is not a problem provided there is no weight suspended from, or supported by, the torque transducer. The transducer itself should be supported—the foot mount is recommended—otherwise, the total weight of the TM body will be hanging on its bearings. When assembling, take special care to avoid any stress on the bearings and make sure the couplings are free of any axial load prior to tightening.