DSH40 Series Stepper Motor
The DSH40 Series is a hybrid stepper motor line from TECO with a frame size of ~40 mm (“40” in the series name) designed for compact motion‐control applications. It’s intended for applications where precise incremental (step-by-step) motion is required and where cost or simplicity are more important than complete servo motors.
Key Features & Specifications
Frame size: Approx. 40 mm body dimension.
Stepper motor type: Two‐phase hybrid stepper motor (standard for this series) with fixed step increments.
Wiring/lead options:
4‐lead (bipolar) series connection.
6‐lead (unipolar) configuration is also listed for this series.
Typical specification sheet info: The DSH40 catalogue lists winding resistance, inductance, rotor inertia, holding torque, etc.
Mechanical tolerances: The general stepping motor catalogue lists step-angle accuracy (±5%) and radial/end-play limits for these frame sizes.
Typical Applications
Compact automation axes: e.g., feeders, small indexing tables, compact rotary modules.
Light-to-moderate load positioning tasks where a simpler open-loop stepper solution suffices.
Machines or modules with limited space and a cost‐effective motor are preferred.
Design & Selection Considerations
Load matching: Make sure the motor’s rotor inertia and torque capability are well matched to the driven load. A small frame like the DSH40 may struggle if the load is heavy or acceleration demands are high.
Torque vs speed trade-off: As with all stepper motors, torque decreases with increasing speed; consult the specific motor’s torque vs speed curves.
Driver compatibility: Use a driver that supports the motor’s wiring style (4‐lead/6‐lead) and current/voltage ratings.
Open loop vs closed loop: While many stepper applications operate open loop, if missing steps are critical, consider adding feedback or using a servo motor instead.
Mechanical integration: Proper mounting, coupling, and cooling are essential to ensure reliability, especially in smaller‐frame motors.
The DSH40 Series Stepper Motor offers a compact, precision stepping solution for automation applications requiring accurate incremental motion in a small footprint. When properly matched and integrated, it provides a cost‐effective and reliable choice for many machine motion axes.
