Linear Actuator Selection: Load, Stroke, Speed, Duty Cycle and Motor Interface

Ball screw driven linear module

Load and moments determine more than payload

List the moving mass, offset loads and external forces. Overhung tooling can create moment loads that dominate the guide selection even when the payload is modest.

Stroke, speed and acceleration belong together

A long stroke at high travel speed may favor a different drive architecture from a short, high-thrust positioning axis. Include the motion profile rather than one headline speed.

Duty cycle affects thermal and life behavior

State cycles per minute, operating hours and dwell times. Frequent reversals and sustained duty can change motor, screw, bearing and lubrication requirements.

Close the motor interface early

Specify motor type, flange, shaft, controller and feedback/brake needs. Leaving the motor until the end can create adapter, coupling and inertia problems.

Turn the selection into an RFQ

Send your drawing, existing reference and operating data to [email protected]. We will confirm the fields that must match before quotation.