Chapter 1: Getting Started
SureStep
TM
Stepping Systems User Manual
1–12
5th Ed., Rev. B 01/2019
Bipolar Step Motor Introduction
AutomationDirect offers many different models of bipolar step motors with
mounting flanges in two different shaft configurations (single and dual-shaft), and
in four different NEMA frame sizes (14, 17, 23, and 34). There are a variety of
motor types available: low torque (STP-MTRL), high torque (STP-MTR), and higher
torque (STP-MTRH). Models that have a “D”, “E”, or “W” variant represent a dual
shaft option (D), an encoder pre-mounted to the motor (E), or IP65 washdown
rated (W) respectively. The “D” variants except for the NEMA 34 motors are
encoder ready with pre-drilled and tapped holes on the rear face for encoder
mounting. All of the motors have a 12 inch connectorized pigtail cable, and
optional matching 6, 10, or 20 foot connectorized extension cables (STP-EXTx)
are also available. The IP65 motors (W models) have IP65 rated connectors.
Refer to Chapter 6: “SureStep™ Stepping Motors” in this user manual for complete
details on the specifications, installation, mounting, dimensions, and wiring of the
SureStep step motors.
STP-MTRx Motors Available in Single-shaft, Dual-shaft (encoder
ready), Encoder Mounted, and IP65 (washdown) Models
STP-MTRx
NEMA 14, 17, 23, 34
Frame Sizes
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