-- Select appropriate types of motors according to peak force and continuous force (torque).

--The peak force doesn’t depend on a method of cooling. For the same continuous force (torque), the motor at water cooling is smaller and cheaper than drive without water cooling.

--It is recommended to use water cooling for motors with an intensive work cycle (frequent acceleration/deceleration or operation with large continuous force or torque).

--Select a standard size (diameter and height for the rotary motor or length and width for a linear motor) with a minimum of the price for given force (torque).

--Price of rotary motors with the identical torque but different diameter and height is approximately same; select the standard size from constructive reasons (for example, motor with higher diameter and smaller height for the equal torque).

--Price of linear forcers with equal force is less for forcers of smaller length and greater width, however cost of a magnetic way is less for smaller width.

--If movement is less than 1m it is recommended to select forcer of smaller length and greater width with the same force; for movement more than 1m select forcer of greater length and smaller width with the same force.

--Select the type of a motor, starting from the least values of a current (HS-HT-GS-GT-FS-FT-BS-BT-AS-AT), according to required speed at a preset supply voltage. The star connection (HS-GS-FS-BS-AS) is more preferable.

--If selected motor has inductance more than 50 mH and if motor application is precise or contour control, it is better to select motor with more high current or motor with triangle connection (HT-GT-FT-BT-AT) instead of a star (HS-GS-FS-BS-AS) (for improvement of controlling quality). For applications not requiring high accuracy and control type "point to point" the inductance can achieve 150 mH.

--If frequency of no-load current is more than 200 Hz, select a motor with the large pole pitch (LSM-M36, RSM-M36 instead of LSM-M24, RSM-M24) or motor with a smaller diameter and greater height to reduce frequency and decrease of losses from eddy currents.

Glossary:
             linear synchronous motors
             torque motors