10mm Dustproof Geared Stepper Motor 5V DC 3mm D-Shaft KC-GM12-10BY

Technical Specification
KC-GM12-10BY Series
Dustproof Geared Stepper Motor — Optimized for precise integration and durable torque output
Model
KC-GM12-10BY
Motor Type
Geared Stepper Motor
Rated Voltage
5.0V / 12.0V DC
Reduction Ratio
1:10 – 1:380
Rated Torque
0.5 – 2.5 kg·cm
Output Shaft
3.0mm D-Shaft
Custom samples: 10-20 days
Bulk order pricing available
ISO 9001, CE & RoHS Compliant
Applications: Precision optical lens actuators, medical syringe pumps, electronic smart lock mechanisms, handheld barcode scanner shutters, miniature robotic joints, automated fluid dosing systems, camera iris controls, motorized valve positioners.
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KC-GM12-10BY Geared Stepper Motor Specifications

General and Electrical Specification Parameters
Parameter Specification
Model Designation KC-GM12-10BY
Motor Architecture 2-Phase 4-wire PM stepper motor
Application Classification Geared stepper motor
Motor Diameter Φ10 mm
Gearbox Cross Section 12 mm × 10 mm (Standard N20 specifications)
Total Motor Thickness 18.6 mm
Gearbox Length 9 mm
Nominal Operating Voltage 5.0 V DC / 12.0 V DC
Phase Resistance Options 10 Ω / 20 Ω / 30 Ω / 40 Ω / 50 Ω (Optional)
Phase Current Rating 490 mA (10 Ω) / 320 mA (20 Ω) / 190 mA (40 Ω)
Native Step Angle 18°/step (Motor side)
Reduced Step Angle Range 0.05°/step to 1.80°/step (Depending on ratio)
Excitation Method 2-2 Phase excitation
Detent Torque 6.0 gf·cm
Holding Torque 18.0–20.0 gf·cm
Rated Output Torque 0.5 kg·cm – 2.5 kg·cm
Shaft Specification 3.0 mm D-shaft / M4 threaded shaft (Custom length available)
Wiring Lead Assignment Red A+ / White A− / Black B− / Brown B+
Lead Wire Length 30 ± 10 mm
Insulation Resistance 50 MΩ Min at 300 V DC
Acoustic Noise Level ≤ 50 dB
Operating Temperature Range 10 °C to 50 °C
Total Unit Weight 12 g
Compliance Standard RoHS compliant

KC-GM12-10BY Dynamic Gearbox Performance Data Table

Measured Performance Characteristics Tested at 800 pps Pulse Rate
Gear Ratio Stages Gearbox Length Step Angle Pull-out Torque (10 Ω) Pull-out Torque (20 Ω) Pull-out Torque (40 Ω) Speed
10:1 2 9 mm 1.80°/step 84 gf·cm 51 gf·cm 34 gf·cm 240 rpm
20:1 3 9 mm 0.90°/step 147 gf·cm 90 gf·cm 59 gf·cm 120 rpm
30:1 3 9 mm 0.60°/step 221 gf·cm 134 gf·cm 88 gf·cm 80 rpm
50:1 4 9 mm 0.36°/step 315 gf·cm 192 gf·cm 126 gf·cm 48 rpm
75:1 4 9 mm 0.24°/step 473 gf·cm 288 gf·cm 189 gf·cm 32 rpm
100:1 4 9 mm 0.18°/step 630 gf·cm 384 gf·cm 252 gf·cm 24 rpm
165:1 5 9 mm 0.11°/step 866 gf·cm 528 gf·cm 347 gf·cm 14.5 rpm
210:1 5 9 mm 0.09°/step 1 103 gf·cm 672 gf·cm 441 gf·cm 11.4 rpm
250:1 5 9 mm 0.07°/step 1 313 gf·cm 800 gf·cm 525 gf·cm 9.6 rpm
298:1 5 9 mm 0.06°/step 1 565 gf·cm 954 gf·cm 626 gf·cm 8.1 rpm
380:1 5 0.05°/step 9 mm 1 995 gf·cm 1 216 gf·cm 798 gf·cm 6.3 rpm

KC-GM12-10BY Mechanical Dimensions and Technical Outline

Mechanical Drawing and Geometric Specs for Integration Engineering (Values in mm)

KC-GM12-10BY geared stepper motor technical 2D drawing showing M1.6 mounting holes, 210:1 ratio & 3mm shaft.

KC-GM12-10BY Geared Stepper Motor Drawing Reference — Standard N20 Gearbox Dimensions (12 mm × 10 mm) with 3.0 mm Outer Shaft Diameter and Black Protective Gear Cover Design (210:1 Assembly Configuration).

KC-GM12-10BY Key Performance Advantages

Technical Benefits for Industrial and OEM System Integration
  • High Torque-to-Volume Output: The 12 mm × 10 mm gearbox profile integrates multi-stage spur reduction gears capable of generating up to 2.5 kg·cm rated torque, delivering continuous load capability within tiny stepper motor installations.
  • Precision Angular Resolution: Featuring an initial motor step angle of 18°/step scaled down to 0.05°/step across 11 standard reduction ratios, enabling micro-positioning accuracy in open-loop drive modes.
  • Adaptable Electrical Winding Options: Multiple phase resistance configurations (10 Ω, 20 Ω, 40 Ω, with optional 30 Ω and 50 Ω) accommodate diverse voltage inputs (5.0 V DC and 12.0 V DC) and current limitations.
  • Durable Mechanical Interface: Standard 3.0 mm D-shaft output combined with optional M4 threaded shafting allows compatible coupling with lead screws, precision encoders, and linear positioning stages.
  • Stable Bipolar Drive Operation: Standard 2-phase 4-wire configuration operating with 2-2 phase excitation provides low vibrational harmonics, operating acoustic noise below 50 dB, and insulation resistance of 50 MΩ Min at 300 V DC.
  • Modular Industrial Customization: Custom options include lead cable lengths (standard 30 ± 10 mm), special gear ratios, shaft modifications, and protective black dust covers for miniature stepper motors operating in harsh environments.

Integration Guidelines and Operational Notes

1. Mechanical Integrity: Metal gearbox components must remain free of surface rust, oxidation, and deep structural scratches. Handling should be performed using clean finger cots to maintain particulate protection.

2. Lead Wire Handling: Avoid applying direct tensile force or sharp axial strain to the lead cable termination area during assembly.

3. Dust Protection Assembly: Model configuration KC-GM12-10BY with a 210:1 reduction ratio incorporates an externally mounted black protective housing for shielding internal gearing mechanisms against external particulate matter.

Technical Search Terms and Key Index Identifiers
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