10mm 2-Phase 4-Wire PM Stepper Motor with Lead Screw and 12mm Gearbox KC-GM12-10BY

Technical Overview
KC-GM12-10BY Series
Micro Geared Stepper Motor — Engineered for precise linear integration and durable torque transmission
Model
KC-GM12-10BY
Motor Type
2-Phase PM Stepper
Gearbox Type
Precision Spur Reduction
Rated Voltage
DC 5.0V / 12.0V
Reduction Ratio
1:10 – 1:380
Shaft Configuration
M3 Threaded Lead Screw
Custom samples: 10–20 days
Bulk order pricing available
ISO 9001, CE & RoHS Compliant
Applications: Miniature linear syringe pump drives, Optical lens focusing positioning stages, Automated micro-valve actuators, Precision liquid dosing metering systems, Electronic lock cylinder drive mechanisms, Precision beam alignment positioners, Micro linear actuator testing stages, Medical analyzer sample pipetting mechanisms.
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KC-GM12-10BY Stepper Motor with Lead Screw Engineering Specifications

The KC-GM12-10BY series integrates a 10 mm permanent magnet stepper motor with a precision gearbox and an integrated M3 lead screw shaft. Designed for high-accuracy linear positioning in OEM medical, optical, and automation equipment, this micro screw stepper motor delivers controlled linear displacement, robust holding torque, and consistent electromechanical efficiency.

Engineering Overview and Drive Configuration

The KC-GM12-10BY stepper motor with lead screw utilizes a 2-phase 4-wire bipolar configuration driven by a 2-2 phase excitation regime. Featuring a 10 mm outer diameter motor body paired with a 12 mm × 10 mm N20 standard gearbox profile, this stepper motor with screw shaft enables direct conversion of rotary motion into precise axial linear displacement. With multiple reduction ratio options ranging from 1:10 to 1:380, design engineers can select precise output torque and speed profiles tailored to specific load dynamics.

KC-GM12-10BY General and Electrical Specifications

Parameter Specification Value
Model Name KC-GM12-10BY
Motor Type 2-phase 4-wire (PM stepper motor)
Outer Diameter 10 mm
Gearbox Dimensions 12 mm × 10 mm (Standard N20 specifications)
Rated Voltage 5.0 V DC / 12.0 V DC
Phase Resistance Options 10 Ω / 20 Ω / 40 Ω / 50 Ω (Optional)
Base Step Angle 18°/step (Motor end)
Excitation Method 2-2 phase excitation
Phase Current Range 190 mA to 490 mA ref./phase
Detent Torque 6.0 gf·cm
Holding Torque 18.0 gf·cm to 20.0 gf·cm
Rated Torque Range 0.5 kg·cm to 2.5 kg·cm
Insulation Resistance 50 MΩ at 300 V DC
Acoustic Noise Level ≤ 50 dB(A)
Operating Temperature Range 10 °C to 50 °C
Motor Body Thickness 27.4 mm
Gearbox Length 9.0 mm
Output Shaft Options M3 lead screw (8 mm thread length) / 3.0 mm D-shaft / M4 threaded shaft
Wiring Lead Colors Red A+ / White A− / Black B− / Brown B+
Total Unit Weight 12 g

KC-GM12-10BY Gearbox Output and Dynamic Performance Specifications

Performance measured at 800 PPS pulse drive frequency across standard reduction tiers
Gear Ratio Gear Stages Gearbox Length Output Step Angle KC-GM12-10BYJ2510-N Pull-out Torque (10 Ω) KC-GM12-10BYJ2520-N Pull-out Torque (20 Ω) KC-GM12-10BYJ2540-N Pull-out Torque (40 Ω) Output Speed
10:1 2 9.0 mm 1.80°/step 84 gf·cm 51 gf·cm 34 gf·cm 240.0 rpm
20:1 3 9.0 mm 0.90°/step 147 gf·cm 90 gf·cm 59 gf·cm 120.0 rpm
30:1 3 9.0 mm 0.60°/step 221 gf·cm 134 gf·cm 88 gf·cm 80.0 rpm
50:1 4 9.0 mm 0.36°/step 315 gf·cm 192 gf·cm 126 gf·cm 48.0 rpm
75:1 4 9.0 mm 0.24°/step 473 gf·cm 288 gf·cm 189 gf·cm 32.0 rpm
100:1 4 9.0 mm 0.18°/step 630 gf·cm 384 gf·cm 252 gf·cm 24.0 rpm
165:1 5 9.0 mm 0.11°/step 866 gf·cm 528 gf·cm 347 gf·cm 14.5 rpm
210:1 5 9.0 mm 0.09°/step 1 103 gf·cm 672 gf·cm 441 gf·cm 11.4 rpm
250:1 5 9.0 mm 0.07°/step 1 313 gf·cm 800 gf·cm 525 gf·cm 9.6 rpm
298:1 5 9.0 mm 0.06°/step 1 565 gf·cm 954 gf·cm 626 gf·cm 8.1 rpm
380:1 5 9.0 mm 0.05°/step 1 995 gf·cm 1 216 gf·cm 798 gf·cm 6.3 rpm

KC-GM12-10BY Mechanical Dimensions and Technical Drawing

Dimensional envelope for hardware integration | All linear units specified in millimeters

Kechen Motor KC-GM12-10BY stepper motor with lead screw Technical 2D Drawing showing 10mm dia, 9mm gearbox & M3 8mm shaft.

KC-GM12-10BY Series Stepper Motor with Lead Screw Outline Dimensions (M3 Threaded Shaft, 8 mm Length)

KC-GM12-10BY Performance Advantages for OEM Integration

  • Precise Linear Displacement: Direct coupling of the M3 lead screw shaft with the 10 mm stepper motor eliminates mechanical backlashes associated with secondary belt or gear linkages.
  • Scalable Reduction Architecture: Gear ratios from 1:10 up to 1:380 permit fine output step angles down to 0.05°/step for high-resolution positioning requirements.
  • High Torque Density: Delivers pull-out torque up to 1 995 gf·cm (1.95 N·cm) within a compact 12 mm × 10 mm gearbox footprint.
  • Low Acoustic Signature: Engineering gear tooth design maintains operation at or below 50 dB(A) for noise-sensitive laboratory and medical device environments.
  • Electrical Versatility: Dual rated voltage compatibility (5.0 V DC and 12.0 V DC) with configurable phase resistances (10 Ω to 50 Ω) fits standard driver IC architectures.
  • Customizable Shaft Configurations: Shaft length, lead pitch, and mechanical output geometry (M3 thread, M4 thread, or D-shaft) can be engineered to client specifications.

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